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Forum: Post Your Photos! 01-03-2010, 11:02 PM  
Sports Surf shots
Posted By FruitLooPs
Replies: 4
Views: 2,144
Went out for a surf mission with a few friends. Meant to have been large surf at Hickery bay today, and it was for sure. I'm not much of a surfer yet but took my chances for a several hours, then got out and snapped a few shots with the K20D + Tak 300 F4 preset (surf was declining lots by that point though) :o

Started to rain ~10mins after I started so short timeframe really. Fairly soft shots too (a long way from the actual surfers so shots are cropped)











Enjoy - I did :D

*P.S. I really enjoyed the pentaxian video of Mark Dimalanta seen here: http://www.pentaxian.com/#pentaxians/inspirationalist/mark_dimalanta *
Forum: Pentax SLR Lens Discussion 03-09-2012, 08:05 AM  
DA40XS Lens Tested on Film (MZ-S + DA40XS on Kodak Gold 200)
Posted By frank
Replies: 31
Views: 25,019
Tested the new DA40XS lens on film camera last Sat just to see if the lens works okay on FF film camera. Here is the setup:






I finished the whole roll in one hour around my place, all are just quick snaps. And it's after 6pm just around the time when the Sun was going down. Sky was pretty doll too, so please don't judge too much on the photo quality. I just wanted to test if the lens had any problem working on FF film cameras.
Here is the whole roll, 36.8 shots (the last shot got a black bar on the right 'cause film finished already):




Looking at the scanned results, I'd say the lens works pretty well on FF film camera :)

I'd post all the 36.8 shots below, no cropping or vignetting adjustment on any photo, except some level and saturation adjustment (the scanned results are way too saturated :()

------------------------------------

These two are the first two snaps from our window, first one was shot at F8, the second was wide open at F2.8, you can see there is just a little bit vignetting on the wide open photo, not very obvious at all:






Thanks to these two fellow Pentaxians who took the short walk together with me:





The rest of the whole roll film:


































































Thanks to our Penatx friends who took the short walk with me, and sorry for the funny color, can't help from my side :(
Forum: Post Your Photos! 04-15-2014, 07:51 AM  
Night Share your "Blood Moon" photos here!
Posted By mikeSF
Replies: 93
Views: 14,312
after relocating a couple of times to evade the incoming cloud layer, I ended up south of Sacramento at this decommissioned nuclear station. This is a bit of a composite. I did shoot everything, just not necessarily at the same time. ;)

Rancho Seco Blood Moon

K5 with FA31 and DA55
Forum: Video and Pentax HDSLRs 03-19-2014, 07:43 PM  
Drone / UAV videography
Posted By interested_observer
Replies: 15
Views: 3,477
As an engineer over the last 40 years, all I can really say that in a past life I have had some experience in this area. So, let's divide this problem into is parts and address each part, and see what you should be looking for, based on the requirements that you have laid out so far....

Let's divide the problem initially into three separate areas - the platform / vehicle and the camera system, along with a pointing capability (getting the camera pointed in the right direction, both azimuth and elevation). Also, I'll keep it pretty simple.

Platform -
  • Since you want to get the platform up into the air, fly it to some point in the air (called a station or way point), probably have it hover while you do some photography, then return to you - landing gently. So, do you want to manually have to "fly" it - take off, fly to where you want it to go, and then have to "fly" to hover, and then to fly it back and land. Think of the R/C craft (either planes or helos) - that is a lot of work and its going to take a lot to both fly it and take images at the same time. The bottom line is that there are two types of systems - the R/C where you actually fly it, or the ones (via autonomous flight) where you load up a flight plan with some way points - point 1 where you currently are, point 2, 200 yards out and 500 feet up - hover there until commanded to proceed, and then return to point 1. Also, I'm thinking that you are thinking of a copter 4, 6 or 8 motors, etc. with an autonomous flight controls with GPS.

Pointing -
  • This is going to require some sort of gimble arrangement, especially for the elevation - so as to point down in a controlled manner. Azimuth may be able to be taken care of by having the platform rotate on station - or better yet taken care of by the pointing system, so the "target" is lined up and framed for the camera. This will probably be a WiFi control also that will down link to a laptop/netbook that you will probably be controlling the camera from.

Camera -
  • As much as I like Pentax for a lot of reasons, I don't think that this is going to be the most appropriate camera for this application. I could be wrong, but here is my thinking. The ability to view cameras in real time, I would not consider this as minor. This ability, along with size and weight are some principal requirements. In order to view (control) the camera's image, you are going to need a camera with some wireless capability. Viewing the image is one thing - a WiFi SD card will do that for you. However, to zoom in and command it to take an image, you are going to need a card similar to the Pentax FluCard - i.e. tethering ability. Right now that is only available on the K3. The K cameras are fairly large and heavy. The larger and heavier the payload the larger and heavier and more expensive the platform - the copter. Other than size and weight the K3 has everything - via the FluCard - and I don't know about the FluCard's range, which draws from the K3's battery. You will have all the controls available other than zoom, so you are going to have to pick your focal length prior to take off. Metering, shutter, ISO and aperture should be controllable via the FluCard. But the pointing system would need to support it, and that would be a problem, in terms of stabilizing the platform with a large camera and lens slung under it, moving around a lot (a moving center of gravity is not good here). A slightly smaller camera will probably work better. A smaller sensor will give you better depth of field - and that would bring up tethering / WiFi capabilities again. Built in body stabilization would certainly help. I don't think that having inter-changeable lenses body is really an option at this point. Smaller and more specialized is where the industry currently is at.

Here is a recent article on the industry highlighting one company, along with some additional links to various other websites. The article indicates a reasonable copter starts in the $600 range, so your budget appears to be reasonable on the lower end. However, this needs to be a system, not just a copter or camera, there is all the other items that needs to be considered too.I have no specific knowledge in any of these companies or products. You can spend a lot of time and money trying to put the parts together. I am thinking that a platform with a pointing capability is one package - and they would certainly have camera suggestions.

Hope that helps...

:cool:
Forum: Pentax SLR Lens Discussion 01-24-2014, 03:09 AM  
Teleconverters - again! (Pentax Rear Converter A 2X-S on DA* 200mm f/2.8))
Posted By Pentaxoe
Replies: 51
Views: 10,923
I would be interested in that too. Unfortunately I have no further information. I have a picture though.

Attachment 203442
Forum: Pentax News and Rumors 01-25-2014, 05:35 AM  
Image of HD Pentax 1.4x Teleconverter
Posted By JPT
Replies: 279
Views: 43,700
Someone in another thread has posted a picture of what looks to be the long awaited 1.4x teleconverter. It appears to have screw drive and SDM contacts. It also has the AW designation.


https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/236075-tele...ml#post2661032

It looks like a legitimate PR shot to me.
Forum: Post Your Photos! 10-09-2012, 07:50 PM  
Landscape Sawtooths and wildflowers
Posted By dankuno
Replies: 13
Views: 815


The Sawtooth Mountains in Idaho - July wildflowers
Forum: Pentax News and Rumors 10-04-2013, 10:34 PM  
K-3 pictures: front, side and back (aka it definitely is a headphone jack)
Posted By Adam
Replies: 636
Views: 93,334
No, it says Nikon, sadly ;) You'll see it next week too.
Forum: Pentax SLR Lens Discussion 12-20-2006, 01:47 AM  
Tilt and shift on Pentax
Posted By eurostar
Replies: 18
Views: 11,237
Forum: Pentax Film SLR Discussion 03-08-2009, 04:37 PM  
:cool: Lets see those ''film'' shots
Posted By Nesster
Replies: 21,677
Views: 2,748,704
Great idea - gives me an excuse to show pics from the mid 80s, with ASA400 film I've long forgotten, the Oly OM2s and the Tamron 35-80 SP... Some of the best pictures I've ever taken were from that time.










Most of these are scans of prints...
Forum: Mini-Challenges, Games, and Photo Stories 01-01-2012, 06:31 AM  
Post-Processing Challege 58 - The Streets of Barcelona
Posted By Adam
Replies: 22
Views: 5,676
Thanks to Tim for hosting last week's challenge! I was surprised to win my first challenge, but it was very fun to partake and finally do more than just administrative stuff on the site for a change :)

This challenge closes in a week, at 11:59pm EST on January 8th. I'll post the winner shortly thereafter.

Original JPG Download

There's the photo, as I usually don't shoot raw only the original JPG file is posted. Good luck!

***

For those hosting new challenges, here's the Mediafire Hosting login info

Login - pentaxchallenge@yahoo.com
Password - postprocessing
Forum: Pentax Camera and Field Accessories 04-21-2010, 10:04 AM  
SPL Underwater Housing for K7
Posted By tpeace
Replies: 3
Views: 11,355
This is a review of the SPL underwater housing for the K7. My primary use is as a snorkeler in the surf break to photograph surfers so I’m writing this from that perspective. I've used water bags for my K20 in the past and am completely comfortable with those for snorkeling in calm water. However, I'm often in the area of the surf break (i.e. rough waters) so I felt I needed something more secure to protect the camera.


Casing and accessories:



Brief Description:

For those of you unfamiliar with the SPL underwater housings here’s a brief description:

The housing is good for use in depths. Up to 5 meters. It is constructed out of light weight aluminum, anodized for protection against salt water corrosion. The housing is approximately 3 pounds empty. Because it contains significant empty space, it is buoyant in water. (I suppose a scuba diver would want to attach a weight to remove buoyancy for easy handling underwater.)


The front plate is a firm plexi-glass with a fixed-shaped dome (port) custom designed for the lens. The standard port offered is for a Pentax 10-17mm zoom. (I have found the 18-55mm kit lens will fit when the zoom is set mid-range, approx. 35mm.) Other custom ports are available from SPL and typically run in the upper hundreds (600-800 USD) per port.

They did make a custom model for the K10 previously, but my understanding is that they no longer make custom housings. As far as I know, the only Pentax camera they now support is the K7.

K7 Camera in casing- close-up:



The camera fits snugly in the housing and is help in place by several hard rubber mounting spacers. These have been placed by SPL as necessary for the particular camera model supported to allow the control access levers to reach the following controls:
Control Ports:

- Shutter Release

- Front dial (function varies based upon camera custom set-up.)

- Rear dial (function varies based upon camera custom set-up.)

- Shooting mode dial (but non-functional due to K7’s locking pin on this dial).
Two optional ports support:

- Port for external flash system (SPL sells one separately, other options might exist but I’m unaware. To date, I haven’t used this port.)

- A pistol grip with shutter release control (via a shuttle release cable built into the grip.) This comes standard with the housing.
After the camera is placed inside you will only have access to the above controls so obviously the camera must remain on the entire time it is in the sealed casing. (In video mode, I found this generates quite a bit of heat which dissipates while in water).

All three ports are sealed by o-rings which must be kept clean from sand and other dirt. Following use, the o-rings should be coated lightly with a silicon gel (small amount provided with housing.)

The housing provides several view ports to the rear display and to the LED top display.

Back & Top view Ports:



It also comes with a detachable wrist-leash and a neoprene port cover for protection.

The retail price is approx. $1,600 USD.


My experience:

While insertion of the camera into the housing takes a bit of practice (it is a tight fit) once in the water it is comfortable in the hands and well balanced in the water. It does occupy one hand while swimming which was I found to be a bit of a challenge when swimming against a hard current.

In Use:


Given that you don’t have access to the menus once the camera is placed inside the housing, it is important to think thru the shooting mode and camera settings in order to provide as much flexibility as possible in order to deal with lighting and composition once in the water.

For shooting stills, I prefer using either AV or TV mode one of the e-dials set to adjust the exposure. If I have good light, I’ll shoot High Quality JPEG to squeeze as many shots as possible on a card. If lighting is questionable, I’ll shoot RAW only in hopes that I can PP out a quality image. I clear my largest SD card and also use a fully charged battery for each session in the water. I set W/B to Auto, shutter control to continuous Lo-Speed, AFC, and shutter button half-way for Auto-focus to on. I prefer to not push ISO past 280.


What I don’t like:

- No access to zoom ring and focus rings on the lens.

- For Auto-focus, the housing requires use of the shutter button halfway setting. This means I miss a lot of shots while the camera is hunting.

- The housing uses 7 wing-nuts to secure front port watertight. It’s a little time-consuming to get in and out of the housing, especially with tired fingers after being pounded in a heavy surf.

- Can’t change shooting mode easily. As I mentioned, the housing provides a control to change the setting which is probably left over from the K10 days. But the K7 now uses a locking pin on top of the mode dial so the housing’s control can’t engage it. I haven’t found a way around this.

- The basic design and function seems to be carry-over from film camera days. I would think for the price that someone could come up with an option that gives access to menus, ISO, WB, shutter control (hi-speed/lo-speed) settings, etc.

Whew! Probably more than you wanted to read. I’ll be happy to answer any questions that I can. I'm sure there's a lot that I forgot.


Regards,
-tom
Forum: Winners' Showcase 02-27-2012, 04:27 AM  
February, 2012 Third Place: Early Morning Activity
Posted By netrex
Replies: 5
Views: 1,696
Honningsvåg harbor while waiting for my transport home to Alta.
Forum: Pentax SLR Lens Discussion 12-11-2012, 07:25 PM  
Is This PORN?
Posted By minahasa
Replies: 64
Views: 61,672
.. unfortunately.. the guy in the pic is not me :o



Edit: Here's the short list

FOR NIKON
1a. 10-20mm f4-5.6 Sigma DC HSM
1b. 15mm f5.6
1b. 17-35mm f2.8-4 AF Nikon FX Sigma
1c. 18-28mm f4-4.5 Sirius MC
1d. 21-35mm F3.5-4.2 Sigma AF
2a. 24-50mm f3.3-4.5 Nikon AF
2b. 24-120mm f3.5-5.6 Nikon AF D
2c. 24-120mm f3.5-5.6 Nikon AF ED G VR
2d. 25mm f3.5
3a. 28-85mm 1:3.5-4.5 Vivitar
3b. 28-210mm F3.5-5.6 Phoenix AIS Mount
3c. 28-210mm F4-5.6 Kiron AIS
3d. 28-100mm F3.5-5.5 Starblitz AI Mount
3e. 28mm f2.8 Nikon E series AI Mount
3g. 28-80 f3.5 Hanimex MF AIS macro no caps
3h. 28-85mm F3.5-4.5 . Sigma AIS
3i. 28-80 f3.5-5.6 AF D Sigma macro 1:2
3j. 28-70 f3.5-4.8 Vivitar
4a. 35-70mm f/3.3-4.5 Nikon AF Macro
4b. 35-70mm f/3.3-4.5 Soligor Macro
4c. 35-70mm 1:2.8-4 Sigma
4c. 35-90mm f3.5 Sun MF with macro focusing ring
4d. 35-105mm f3.5 Rexatar
4e. 35-135mm f4-4.5 Tokina
4g. 35-80mm f4.5-5.6D AF Nikon Macro
4h. 35-135mm f3.5-4.5 Promura
5a. 36-72mm F3.5 Nikon Zoom
5.b 36-72mm F3.5 Nikon Zoom
6a. 50-500mm f4-6.3 Sigma HSM APO DG
6b. 50-300mm f4.5 Nikon
7a. 55mm F3.5 NIKON NON-AI MICRO
7b. 55mm F2.8 NIKON NON-AI MICRO
7c. 50mm F1.8 NIKON E SERIES
8c. 70-210mm F4 Nikon Series E Macro
8d. 70-210mm F3.5 Nikon Vivitar series 1 Macro
8e. 70-210mm F3.5 Nikon Vivitar series 1 Macro
8f. 75-200mm F4 Nikon Rokinon
8g. 75-150mm F4 Nikon Quantaray
20c. 80-200mm F3.9 Albinar AI Mount
20e. 80-200mm f4.5 Camutar
20f. 80-250mm F4.5-5.6 Rokinon AI Mount
21a. 85-210mm f4.5 Tamron BBAR MF with macro focusing
21b. 85-205mm f3.8 Vivitar MF
21c. 85-210MM F3.8 AI
22. 90mm f4 Leica Silver - Nikon mount
28. 90-235 f4.5 Vivitar
28a. 100mm f3.5 AF Cosina macro + filter macro 1:1
28b. 100-300mm f5.6-6.7 MC Macro Nikon AI-S Cosina 1:4
28c. 105mm f2.5 Nikkor-P
28c. 105mm f1.8 Nikkor AIS
30. 135mm f2.8 Nikon
30j. 135mm f4 Carl Zeiss Zebra Nikon mount
30k. 135mm f2.8 Nikon E series
30m. 135mm f2.8 Nikon – Assanuma
32a. 200mm f4 Sigma Spiratone proxitel MF macro 1:3
32b. 200mm f4 Nikkor-Q MF
32d. 200mm f4 Nikkor-Q MF
32e. 200MM f1;3.5 SUPER KOMURA
33a. 250mm f4 Leica-Nikon mount
33b. 240mm f4.5 Novoflex Pistol grip
34a. 400mm f5.6 Novoflex + 240mm f4.5 Novoflex Pistol grip
34b. 560mm f6.8 Leica MF Telyt NEW + 400mm f5.6 Novaflex Pistol grip
34e. 500mm f6.3 Vivitar
34e. 600mm f9 (fix) Novoflex pistol grip focus follower
34f. 640mm f9 (fix) Novoflex pistol grip focus follower
34g. 800/1600 mm f8 Soligor
34h. 800/1600 mm f8 Soligor
37a. Tele-Converter 3x3 Vivitar AI Mount
37b. Tele-Converter JCPenney Auto 2x
38a. Extension Tube #1/#2 Telesar NON AI Mount

FOR CANON
1a. 18-28mm f4-4.5 Samyang FD
1b. 18-55mm kit AF Canon EOS IS
1c. 28-70 f4 Kiron MF FD Macro focus
1d. 28-80 f3.5-4.5 Vivitar MF FD macro focus
1e. 28-80mm 1:3.5-4.5 JC Penny MF FD
1f. 28-70mm Tamron adaptall MF FD
1g. 28mm f2 Canon-Vivitar MF EOS
2a. 24-60mm f2.8 Sigma AF EX DG
2b. 28mm f2.8 Canon Albinar MF
2c. 28-80mm f=3.5-4.5 Canon FD Sakar MC zoom
2f. 35-80MM f4-5.6 QUANTARAY FD
2g. 35-70MM f4-5.6 Ozunon FD
2h. 35-135MM f3.5-4.5 Kiron FD
3a. 50mm f3.5 Canon SSC MF FD Macro
3b. 50mm f1.8 Canon MF FD
3c. 50mm f1.2 Canon MF FD + Adapter infinity
3d. 50mm f2 MAMIYA EOS mount
3e. 55-200mm f4-5.6 Sigma EOS
7a. 70-210mm f3.5 Vivitar Series 1 Macro FD
7b. 70-210mm f4 Kiron macro MF EOS mount
7bb. 70-210mm f3.5 Tokina
7c. 70-230mm Sigma EOS mount
7d. 75-300MM f5.6 ALBINAR-ADG FD
7e. 75-200MM f4.5 TOU/FIVE STAR MC FD
7f. 75-205mm f3.8 Vivitar FD
7g. 75-140mm f3.9 Owen FD
10a. 80-200mm f4.5 Kalimar FD 5 MACRO
10b. 80-200mm f4.5 Sears FD MACRO
10c. 80-200mm f4.5 Focal FD MACRO
10d. 80-200mm f4.5 Chinar FD MACRO
10f. 80-200MM f4.5 TOYO OPTICS MC FD MACRO
10g. 80-200MM f3.9 JC Penney FD MACRO
10h. 80-205MM f4.5 Gemini FD MACRO 1:4
10g. 80-200MM f4.5 Ozunon FD MACRO 1:5
11a. 100-300mm f5 Canon-Vivitar FD
11b. 100mm f2.8 CANON SSC FD
11c. 100mm f4 Canon FD Macro 1:1
12a. 135mm f2.8 Sears W/Macro FD
12aa. 135mm f2.8 Sears W/Macro FD
12b. 135mm f2.8 Kenlock EOS mount
12c. 135mm f2.8 Focal EOS mount
12d. 135mm f2.8 XXX EOS mount
13b. 240mm f4.5 Novoflex Pistol grip
14a. 400mm f5.6 Novoflex + 240mm f4.5 Novoflex Pistol grip
14b. 560mm f6.8 Leica MF Telyt NEW + 400mm f5.6 Novaflex Pistol grip
14e. 500mm f6.3 Vivitar
14e. 600mm f9 (fix) Novoflex pistol grip focus follower
14f. 640mm f9 (fix) Novoflex pistol grip focus follower
14g. 800/1600 mm f8 Soligor
14h. 800/1600 mm f8 Soligor
16a. Adapter FD to EOS Infinity
18. TC 3X-4 CANON FL-FD VIVITAR MC
19. EXTENSION TUBE AT-4 FL-FD 36MM 20MM 12MM VIVITAR
19a. TC 1.6x Canon C-8
20. TC 2X (Ada 5 ea) Vivitar/Telemore MF FD

FOR MINOLTA MD mount
1a. 28mm f3.5 Minolta
1b 28mm f2.8 . Minolta Star-D
1c. 28mm f2.8 Minolta CPC Phase
1d. 28mm f2.8 Yus Automatic
5. 28mm f2.8 Minolta Mount by Seikanon
5a. 28mm f2.8 Minolta KALIGAR
5b. 28-80mm F/3.5-4.5 Minolta PROSPEC MC AF Zoom
5d. 28mm f2.8 MC Minolta Celtic
5e. 28-210mm f4-5.6 Kiron
5f. 28-70mm F/3.5-4.5 Minolta Kalimar
5g. 28mm f2.8 Minolta Gemini
6a. 30-80mm f3.5-4.5 Kiron MF MACRO
6b. 35-70mm f3.5-4.5 Sigma
7. 35mm f2.8 Minolta MD
9a. 45mm f2 Minolta Rokkor-X
9b. 55mm f1.7 Minolta Rokkor-PF
10a. 55-225MM f3.5-4.5 Minolta Mount Macro by Seikanon
10b. 60-200mm F4 - 5.6 Minolta Maxxum Access Macro Zoom for
11a. 70-210mm f4 Minolta-Tokina
11b. 70-210mm f4 Minolta-Kiron macro
12a. 75-205MM f3.5 Minolta macro Albinar
12b. 75-205MM f3.8 Minolta macro Vivitar
12c. 75MM f3.5 Minolta SPIRATONE
13. 80-200MM f3.9 Minolta Macro by Albinar
13a. 85-205mm for Vivitar Minolta MD
14a. 80-200MM f4.5 Minolta Macro by Tou/Five star
14b. 80-200MM f4.5 Minolta Macro by Soligor
14c. 80--200mm f3.5 Sears Auto Macro
14d. 80-200mm f4.5 Minolta ROKINON
14e. 80-200mm f4.5 Rokinon MD macro
14f. 80-200mm f3.9 Sakar mc
14g. 80-200mm f4.5-5.6 MINOLTA MAXXUM AF ZOOM
14h. 80-200mm f4.5 Tuo/Five
15a. 100-200mm f5.6 Rokunar Auto Zoom
15b. 100mm f4.0 MINOLTA Macro 1:1
16a. 135mm f2.8 XXX MF
16b. 135MM f3.5 Minolta Rokkor
16c. 135MM f3.5 Minolta Celtic
16d. 135MM f2.8 Minolta Hanimex
16e. 135MM f2.8 Minolta Quantaray
19a. 200MM f3.5 Minolta-JCPenney
19b. 200MM f3.5 Minolta-Vivitar \w Collar
20. TELE CONVERTER 2X VIVITAR AUTO-MATIC
21. VIVITAR AUTOMATIC EXTENSION TUBE AT-5 36MM 20MM 12MM JAPAN

FOR YASHICA/CONTAX/RICOH/KONICA
1. 28-70MM f3.5-4.5 Sunagor
2. 28MM f2.8 PROMASTER
3. 35-70mm f3.5-4.5 Ricoh Rikenon zoom macro
4. 42-75mm f:3.5-4.5 Yashica ML Zoom
5a. 50mm f1.8 Konica Hexanon AR
5b. 50mm f1.9 Yashica DSB
6a. 80-200mm f4.5 . Yashica JC Penney
6b. 80-200mm f4.5 . Aetna Rokunar ( Fujica bayonett)
6c. 80-200mm f4 Yashica Tempo
7a. 135mm f2.8 Yashica-DSB
7b. 135mm f2.8 Yashica-CPC

FOR PENTAX
1a. 28-85 f3.5-4.5 Pentax-Vivitar MF Macro fokushing
1b. 28-80 f3.5-4.5 Pentax-Takumar MF Macro
1c. 28-70 f3.5-4.5 Pentax-Prospec macro fokushing
1d. 28mm 1:2:8 Pentax-Chinar MC CA
1e. 28mm f2.8 BESTON MC KOREA
1f. 28mm f2.8 Itorex MC
1g. 28mm f2.8 YUS
2a. 35-70mm Pentax-Vivitar
2b. 35-80MM f4-5.6 PENTAX SMC
2c. 35-200MM f4-5.6 PENTAX Sears
3a. 50mm f2 Pentax-M
3b. 50mm f2 Pentax-Sears
3c. 50mm f1.4 Pentax-Sears
4. 60-300mm f3.9 . Pentax-Kalimar
5a. 70-210 f4.5-5.6 Pentax-Promaster spectrum 7
5b. 70-210mm f=4-5.6 Pentax-Prospec
5c. 70-200MM f4 COSMICAR MC ZOOM
5d, 70-180mm Macro f4.5 Osawa
6a. 80-200mm f4.5 . Pentax-Tou/Five Star MF MACRO
6b. 80-200mm f4 Pentax-Sears MF
6c. 80-200mm f4.5 Pentax-Tokina MF
6d. 80-200 mm f4 Pentax-Kiron macro 1 : 4
6e. 80-200 mm f4 Pentax-Mitacon f4.5
7a. 135 f2.8 Pentax-Sears MF
7b. 135 f2.8 Pentax-Hanimex MF
7c. 135 f2.8 Pentax-Star-D MF
9. PROMASTER SPECTRUM7 AUTO TELE CONVERTERMC 2X

FOR OLYMPUS
1. TC2x Vivitar MF for Olympus (ada 6) - no caps
2. 28-80 f.5-4.5 Olympus . Super Foto MC
3. 70-150mm Tokina MF macro O/M mount f4 - no caps
4. 70-210mm F4 Kiron Macro Zoom Lock
5. 135 f2.8 Hanimex MF
6. 200MM f1:3.5 VIVITAR O/M

M42 SCREW MOUNT FOR ALL CAMERA
1a. 35MM f3.5 SOLIGOR GOOD
1b. 39-85mm Telesor 1:3.9
3a. 50mm f2 Fujinon
3b. 55mm f1.8 Fujinon
3c. 55mm f1.8 Fujinon
4a. 80-200 f4.5 Soligor
4c. 85-210MM Sun pistol grip
4d. 85-205mm Super Albinar
4e. 85-205mm 1:3.8 Vivitar
4f. 135mm/3.5 Accura Diamatic
4i. 135mm f3.5 Hanimar
4j. 135mm f2.8 Aragon Silver
5a. 200mm f3.5 Focal
5b. 200mm f3.5 Montegomary
7b. 240mm f4.5 Novoflex Pistol grip
8a. 400mm f5.6 Novoflex + 240mm f4.5 Novoflex Pistol grip
8b. 400mm f5.6 Astra Chromed
8c. 560mm f6.8 Leica MF Telyt NEW + 400mm f5.6 Novaflex Pistol grip
8e. 500mm f6.3 Vivitar
8e. 600mm f9 (fix) Novoflex pistol grip focus follower
8f. 640mm f9 (fix) Novoflex pistol grip focus follower
8g. 800/1600 mm f8 Soligor
8h. 800/1600 mm f8 Soligor
12a. TELEPLUS APS AUTO 2x TELE CONVERTER
12b. Vivitar 2X Teleconverter + case
13c. Vivitar 3X Teleconverter + case
14. REFLEXA MACRO EXTENSION TUBES*M42
15.M42 Novoflex Bellow + ILEX 137mm f5.6 macro lens

MAMIYA
1. 35mm f2.8 MAMIYA F.C. exacta mount
2. 48mm f2.8 MAMIYA F.C. exacta mount
3. 50mm f2 MAMIYA E. MD mount
4. 135mm f2.8 MAMIYA F.C. exacta mount

TOPCON Tokyo Kogaku Japan (Infinity for Nikon/Canon)
1. 35mm f3.5 fix Topcon UV Topcor Silver
2. 50mm f1.4 Topcon Silver Nikon mount
3. 100mm f4 fix Topcon UV Topcor Silver - Nikon mount
4. 135 mm f4 fix Topcon UV Topcor black
5. 135mm f3.5 fix Topcon RE F Auto Topcor Silver
6. 200mm f4 fix Topcon UV Topcor Silver - Nikon mount

RUSSIAN LENS
1. 40,5x0,5 Macro LENS-ADAPTER rangefinder lens
2. 50 f3,5 USSR TESSAR COPY INDUSTAR-block (fix focus) M39 Silver/black
3. 50 f3,5 USSR TESSAR COPY INDUSTAR-M42 Black for SLR + CAP
4a. 50 f3.5 M39 FED .Collapsible lens stainless steel + hard case for LEICA
4b. 50mm f2 Silver JUPITER 8 Russian unknown mount
4c. 52mm f2.8 INDUSTAR 61 M39 VTG
4d. 52mm f2.8 INDUSTAR 26m-U M39
4e. 53mm f2.8 INDUSTAR 61 55mm M39
4f. 50mm f2.8 INDUSTAR 61 MC MACRO M42
5a. 58mm f2 USSR RUSSIAN SLR LENS HELIOS-44-2 M42 ZENIT
5b. 58mm f2 USSR RUSSIAN SLR LENS HELIOS-44 M42 ZENIT
5c. 58 f2 USSR RUSSIAN SLR LENS HELIOS-44 EOS M42
6. 90mm f2.8 VEGA 12B RUSSIAN LENS FOR KIEV-60,6 PENTACON SIX
8a. 135mm f3.5 JUPITER 37A M42 12 BLADES
8b. 135mm f2.8 Accurar Supertel Tc Exakta Mount
8c. 135mm F4 Kiev Jupiter 11 10 or 15 (Automat)
8d.135MM f3.5 Hanimar
8e. 135mm f/3.5 JUPITER 37A M42 12 BLADES
11. Accura Exakta EXA Lens Extension Tube

LEICA
1b. 90mm f4 Leica Silver Nikon mount
2a. 135 f4.5 Leica Hector Silver exacta
2b. 135mm f2.8 Leica R Elmarit Mount
4c. 135 f4.5 Steinheil Munchen Culminar Silver \w case M39 for Leica
5. 250mm f4 Leica Telyt Nikon/Canon mount
6. 560mm f5.6 Leica Telyt R Mount + Nikon mount
7. 560mm f6.8 Leica MF Telyt NEW + Novoflex 400mm f5.6 Pistol grip
8. Novoflex Leica 39mm screw camera to Leitz Lens Visoflex
9. Novoflex Bellows Exakta Mount
10. Leica Leitz UXOOR Universal Focusing Bellows

VOIGLANDER/SCHNEIDER
1. 50mm f2.8 Voigtlander
2. 80mm f4 Schneider retina xenon C mount
3. 135mm f4 Schneider retina xenon C mount
4. 135mm f4 Voigtlander Dynarex

CARL ZEISS/PENTACON/ISCO/MEYER/HASSELBLAD
1. 30 f3.5 Meyer Lydith Exacta
2a. 35 f2.8 Schafcht Ulm S-Travegon Exacta
2b. 35 f3.5 ISCO Gottingen Westar M42
4a. 50mm f1.8 prakticar mount
4b. 50 f2.8 Carl Zeiss - Aus Jena DDR M42
4d. 50 f2.8 Carl Zeiss - Jena Tessar M42
4e. 50 f2.8 Carl Zeiss - Jena Tessar M42 GOOD
4f. 50 f2.8 Carl Zeiss - Jena Tessar Vebur M42
4g. 50 f3.5 Carl Zeiss - Jena Tessar M42 -
4h. 50 f2.8 Carl Zeiss - Jena Tessar Exacta
4i. 50 f2.8 Carl Zeiss - Jena Tessar Exacta
4j. 50 f3.5 Carl Zeiss - Jena Tessar Exacta
4k. 50 f3.5 Carl Zeiss - Jena Tessar Exacta
4l. 50 f2 Carl Zeiss – Opton collapsible
5a. 50 f3.5 Meyer Primotar M42
5b. 50 f2.8 Meyer DOMIPLAN M42 Black
5c. 50 f2.8 Meyer DOMIPLAN M42 Zebra
6a. 50 f2 ISCO Gottingen Westagon M42
7a. 50 f2.8 Schafcht Ulm eulixa Travenar M42
8a. 50 1.8 Pentacon Electric M42
8b. 50 1.8 Pentacon Electric M42
9. 56mm Kodak Enlarging Ektar
10a. 70-210mm f4-5.6 prakticar/Nikon/Canon mount
10b. 70-300mm f4.5-5.8 Macro Nikon mount
10c. 75 f4.5 Carl Zeiss - Jena Tessar M42 2ea
10d. 75 f4.5 ISCO-GOTTINGEN ISCORIT
10e. 75 f3.5 EL-OMEGAR
12a. 100 f4 ISCO Gottingen Isconar M42 -
12c. 115mm f4 Carl Zeiss - Pro tessar hard case
17a. 135 f3.5 Meyer Primotar Gorlitz Exacta/Nikon/Canon mount -
18a. 135 f4.5 Steinheil Munchen Culminar Silver \w case M39 for Leica -
19a. 135 f2.8 ENNA Munchen Ennalyt M42
20a. 135 f4 ISCO Gottingen Isconar Exacta
20b. 135 f4 ISCO Gottingen Isconar M42 -
20c. 135 f3.5 ISCO Gottingen Westanar M42
21a. 135 f3.5 Schafcht Ulm Travenar M42
21b. 135 f3.8 Staeble telexon M39
21c. 135 f2.8 Pentacon Zebra M42
22a. 150 f4.5 Carl Zeiss Tessar
22b. 150 f4 Hasselblad-Carlzeiss sonar
22b. 150 f4 Hasselblad-Carlzeiss sonar
24a. 180 f3.5 Meyer Primotar M42 Stainless
25a. 200 f4 Pentacon M42
26a. 240 f4.5 ENNA Munchen Ennalyt M42

KOLLMORGEN USA, PAN CINOR PARIS LENS
1. Kollmorgen Super Snaplite 3-1/4 inch f1.9 GOLD - (Head only)
2. Kollmorgen Super Snaplite 4-3/4 inch f1.9 GOLD - (Head only)
3. Kollmorgen Snaplite Series II 6 inch f1.9 BLACK - (Head only)
4. Kollmorgen Solex 7 inch f1.9 BLACK GOOD (Head only)
5. Kollmorgen Super Lite 9 inch f1.9 BLACK - (Head only)
6. Vintage Berthiot Pan-Cinor 1:2 f=17 a 85 SOM Lens
7. Cine Kodak 15mm 2.7 Anastigmat-Professional Movie lens C mount

MEDIUM FORMAT
1. Mamiya Sekor C 127mm f/3.8 RB67 rear cap
2. Mamiya RB67 150mm f/4 Soft Focus SF C -
2. Takumar 150mm f2.8 -

MICROSCOP, TELESCOPE, MACRO
1. Celestron VEGA 360 telescope + Microscope + Tripot + accessories box
2. 1 hard case isi:
- Wollensak 135MM F/4.5 Enlarging Raptar
- Wollensak 162 MM f/4.5 Enlarging Raptar
- 72MM Micro Tessar
- 32MM Micro Tessar
- Reichert Plan 8x 291

Many 3rd party lenses, but still one heck of a collection
Forum: Pentax K-01 01-02-2013, 08:39 AM  
Converting K-01 to IR-only camera.
Posted By RonHendriks1966
Replies: 23
Views: 6,491
So I bought a second K-01. One thought about it is to rebuilt it to an IR-only camera with a 720nm filter infront of the sensor.

I asked Pentax Germany and they can do that for a resonable price when I provide the filter.

The questions I'm with are:
  • Where to purchase the filter?

  • Is 720nm the right choice?

  • Any thoughts about this project?

  • They don't know if the AF will work proparly after the rebuild, but know that there are no options for re-adjusting the AF-system. So anyone knows if the filter is part of the CDAF system or that I can expect that it works proparly?

  • Will the liveview work normal with such a system? A filter infront off the lens makes it black, but how different is this with a liveview only camera and the filter built into the camera infront off the sensor?


A nice amount off questions, and looking for some knowledge.
Forum: Pentax SLR Lens Discussion 06-21-2012, 05:50 PM  
DA 70 LTD - sharpest Pentax Lens?
Posted By selar
Replies: 35
Views: 6,161
It appears that out of all the Pentax lenses tested by Klaus at www.photozone.de, the DA 70 LTD is the reigning champion as far as resolving power goes. The K5 is capable of resolving a maximum of 2750 LW/PH, the DA 70 acheives 2706 in the centre at f4. Is it possible it is the sharpest Pentax lens ever made? The FA77 is yet to be tested on K5, but it beats the FA 31 LTD roundly. Wish Klaus would hurry up and test FA77LTD, but is it likely to beat the DA 70?

Forum: Winners' Showcase 09-25-2011, 11:24 AM  
September, 2011 Runner-Up: Tree Dawn
Posted By mark lj
Replies: 8
Views: 4,381
Tree in the Eden Valley at Dawn
Forum: Mini-Challenges, Games, and Photo Stories 07-26-2012, 05:40 PM  
Thematic Post your HDR photos here.
Posted By GeoJerry
Replies: 677
Views: 60,324
Here are a few taken in San Diego last weekend.



Forum: Mini-Challenges, Games, and Photo Stories 08-20-2012, 07:31 AM  
Thematic Post your HDR photos here.
Posted By Trig
Replies: 677
Views: 60,324
I am raising my own two Pentaxians! A shot from my photowalk with my twin 8 year old boys yesterday afternoon:

My Boys at Palmer's Island by Frank C. Grace (Trig Photography), on Flickr

One is using my *ist DL and the other is using the K-7. Me? I shot this with my K-5.
Forum: Lens Clubs 09-20-2009, 02:18 AM  
DA* Club
Posted By pschlute
Replies: 5,450
Views: 824,208
Da*16-50 on K10D + polariser. Schwabacher's Landing in the Grand Tetons.

Forum: Photo Critique 07-09-2012, 05:55 PM  
Macro Burst!
Posted By tkj365
Replies: 4
Views: 798
First shot with my newly acquired lens...
Forum: Pentax K-5 12-08-2010, 12:55 PM  
No more tests! just pictures
Posted By schimi76
Replies: 7,951
Views: 1,342,755
Long exposure night shot.
Forum: Mini-Challenges, Games, and Photo Stories 05-30-2012, 02:57 AM  
Contest Raw fragility - the Duplo DA21ltd give away contest
Posted By Mace
Replies: 138
Views: 26,446
This is my entry:


I am working as a geomorphologist. Geomorphologist study how the landscape, the surface of the earth is formed. We study how the landforms, such as valleys or dunes will develop and what the consequences are for society. I mainly work in the Arctic, a very fragile place. During my masters I worked on Svalbard, where this picture was taken. I investigated how rock cliffs develop. You can see, that this rockface is very lose and will release a lot of rockfall. Studying causes and consequences of rockfall is important, as this can present a significant danger for people living in mountainous areas and every year people die by rockfalls or rock avalanches of different sizes. In 1963 around 2,000 people died in the city of Vajont in Italy as a consequence of a rockface instability in a single event. In high mountainous areas, rocks are often frozen and “clued” together by water in the clefts. This is called permafrost. Part of the problem with dangers from rocks walls, is that due to climate change this permafrost is thawing, causing a lot of instability in the rockwalls and an increasing amount of disasters.


Permafrost is also important in another respective. In the Arctic huge areas consist of frozen soil. These areas are flat and thawing of the permafrost due to climate change will not affect us immediately. But these soils contain a lot of carbon, C. At present the carbon is fixed by permafrost, but as the soil thaws due to climate change, this carbon can be released in the form of carbon dioxide, CO2, or methan CH4 and go into the atmosphere. Therefore it could even further enhance climate change. It is thus considered as one of the critical tipping points for earths climate, that needs to be studied. Time is short. The melting rates of permafrost are faster then ever observed before.


This is what I will investigate in my Phd, where I will go to Siberia and northern Canada to see how much carbon is stored in permafrost soils (no one knows exactly) and how much could be released to the atmosphere due to climate change (there is no clue on this figure).


This work is very important for everyone of us. Climate change may make our lives and especially the lives of our children very difficult. Therefore more research of the system earth is needed. Permafrost research is a topic, where the balance between earths fragility (melting of permafrost caused by human beings) and the raw power (rockfalls and climate change) becomes very evident. It is just that only few people know about permafrost at all. Part of the problem is, that we cannot really see or photograph permafrost, but as it disappears we can photograph the disasters that its melting causes.

Scientists sometimes struggle to communicate their research to the public, because it may be less interesting then Hollywood stars or football. Photography is one way to communicate our research to the public and raise awareness of the dramatic changes that currently happen in the Arctic. This lens could therefore be used to really change something!
Forum: Mini-Challenges, Games, and Photo Stories 05-29-2012, 06:02 PM  
Contest Raw fragility - the Duplo DA21ltd give away contest
Posted By Ash
Replies: 138
Views: 26,446
Some compelling entries here. Thanks for running this competition Thomas.
This is going to be one highly contested one.

My submission is a broad landscape of Jervis Bay's Captains Beach - a picturesque sandstone-lined bay with pristine waters and beautiful facade. The prize of the DA 21 would be a wonderful asset to my future landscape photography given the focal length fits quite nicely with the majority of my desired field of view and perspective.

This one was taken with the DA 12-24, a bulky but reasonably lightweight lens that the DA 21 would nicely come in place of for much of my landscape work, whilst keeping the bag light and small on my travels in the future.

All the best to everyone submitting.
Forum: Mini-Challenges, Games, and Photo Stories 05-28-2012, 03:06 PM  
Contest Raw fragility - the Duplo DA21ltd give away contest
Posted By anre
Replies: 138
Views: 26,446
First of all, thank you very much for this contest. I am pretty sure you will have a hard time to choose the winner. :) Here's my entry:



How does this picture show the "raw power and fragility of nature"? I would think it is quite obvious, but please let me give you some more detail.

The star of this picture is one of the countless hoodoos of Bryce Canyon, Utah. When first coming to the place I could not really decide where to put
my eyes (and lens) first. Wandering around, I took this quick shot mostly because of the light situation and hurried on to catch up to my significant other,
who thankfully has the patience of a saint. It was later on that this picture really got me thinking.

At first sight, nothing spectacular is happening in this picture.
However on a closer look, it shows the very destruction of this delicate structure. In changes so small one could never perceive them, the whole thing
is taken away grain for grain by wind and water, heat and frost. The raw, brutal force (not) shown is nature's heaviest weapon: time.
Time has rested little sea creatures on the ocean floor, baked them to rock, rose the ground thousands of feet and then instantly
began to wear it down again.

In a few years this spire will be completely eroded. The elemental forces already gnaw at the rocks you see to the right, turning a wall of stone into hoodoos again,
grinding them down, too. See, more than 16 million years captured in 1/250s! :lol:

Andreas

Ps.: Someone else was faster with this idea, great picture Mika! :o
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