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Forum: Pentax K-70 07-27-2020, 07:11 PM  
IR Filter for the K-70/18-135mm?
Posted By lmd91343
Replies: 8
Views: 642
Good.
It is cheaper to try IR with just a filter first to see if you like it. If you like it then you can convert a camera
If you don’t like it, the out of pocket cost is only a filter!

P.S.
IR photography is addictive. It seems I take more shots with my converted K10 than my normal K3.

Forum: Pentax K-70 07-26-2020, 10:08 PM  
IR Filter for the K-70/18-135mm?
Posted By lmd91343
Replies: 8
Views: 642
I've taken perfectly fine IR photos with an IR filter over my K3/16-50 2.8. It just takes a tripod and time. I have a converted K10 (ccd) and a p&s (CMOS) converted to do IR.

Give the unconverted camera approach a try first to see if you like it.

Give me a minute or two to pull up an old thread.
--------------
Here is an old thread about this.
Infrared Photography, and the Pentax world - Page 2 - PentaxForums.com
Forum: Pentax DSLR Discussion 06-19-2020, 09:49 PM  
I'm gonna' SCREAM
Posted By lmd91343
Replies: 35
Views: 3,990
Sorry. At least the camera and lens can be easily replaced.
Forum: Pentax News and Rumors 05-14-2020, 10:49 PM  
PENTAX new product introduction video coming soon
Posted By lmd91343
Replies: 286
Views: 19,768
Did you have one?
Forum: Pentax News and Rumors 05-14-2020, 09:49 PM  
PENTAX new product introduction video coming soon
Posted By lmd91343
Replies: 286
Views: 19,768
Wow! A new battery grip!

Nice presentation for one done from several remote locations.

Too bad about no specs on the 16-50. I'll probably keep mine anyway. The 85 with a convex front element like the chrome front ring Canon 35mm f2.0 from the early and mid 1960s. That was one of the sharpest/ highest resolution lenses I ever had. I de-yellowed mine with sunlight.

Here is a good write up:

Canon FD 35mm F2 Concave Thorium Lens Rare Radioactive Chrome Nose | #1790295427

Here is a beat up one: with a thorium element

FEDEX ?EXC: Rare O Mark ?CANON FD 35mm f/2 MF Wide Angle Lens FD Mount Japan | eBay



As for the K new I wanted to know more! I like the view magnification. I also appreciate knowing the release is planned for this year. I still want to look now more.
Forum: General Talk 05-11-2020, 09:04 PM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Finally pulled the trigger on a Sony A7ii and a Pronto Pro auto focus attachment. Saw the Sony drop to $899 and the Pronto on eBay for $182.

I was afraid that the mark ii would soon be gone.

Having the ability to autofocus all my old but great Canon FD and FDn lenses, Takumar, and rangefinder (Russian, German, and Canon) is great for these aging eyes that wear thick glasses.

I've saved the Canons and Taks for years just for this. The shake reduction is light-years ahead of my K3! That is saying something! I can't wait to use those special lenses full frame.

-Lance
Forum: General Photography 04-17-2020, 06:57 PM  
Turn your film camera into a digital camera for $249
Posted By lmd91343
Replies: 76
Views: 4,681
I have an older I'm back and I like it! It is FUN!

I have a dedicated back for my Canon F1 and a modified back for my Canon 7s. I swap the digital part between them.

With my F1 I need to use my speedfinder. It feels just as clunky as my old F1 with a motor drive. I get to use all my old Canon and Takumar lenses.
With my 7s I can use the viewfinder on the left edge. It is very clunky. I get to use my RF lenses including my Dream lens 50mm f0.9.

The output is 16mb. It is a full frame device. My k10, k20, and k5 have better iq. But it is fun. I get to use my old FD lenses. I get to use my Dream lens full frame, not on a crop Sony.
Forum: General Talk 10-23-2019, 09:36 PM  
Brian Gohacki burned out of business
Posted By lmd91343
Replies: 21
Views: 3,883
Wow. Just discovered this thread. I am glad Brian and his family are ok. I am sorry for his horrible news. I’ve been preoccupied elsewhere.

Anyone know how he is doing?

---------- Post added 10-23-19 at 08:44 PM ----------

Brian did a beautiful job of converting my Canon FL f1.2 50mm and matching hood and caps.
Forum: Pentax News and Rumors 10-09-2019, 10:05 AM  
New K-series DSLR under development to be exhibited
Posted By lmd91343
Replies: 3,487
Views: 263,636
K-Fred as in Fred Flintstone. Good choice. Brings to mind modern technology! ��
Forum: General Talk 04-30-2018, 10:34 PM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Great news!
Forum: General Talk 04-16-2018, 05:32 PM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Wonderful! I am so happy for you! :)

May 8th is three weeks away. That should work out.

Do you have an increase in floaters or do you see “cobwebs”?
Forum: Pentax Lens Articles 04-13-2018, 08:53 AM  
About Lens Hoods IMPORTANT!
Posted By lmd91343
Replies: 57
Views: 47,528
Good point, well demonstrated.
Forum: General Talk 04-12-2018, 09:33 PM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Terrific!!
Forum: Pentax SLR Lens Discussion 04-09-2018, 11:44 AM  
Lightweight/compact telephoto legacy lenses (m42 or K)
Posted By lmd91343
Replies: 30
Views: 3,030
+1 on the SMC Takumar 150/4. I have it. It is very, very light for its FL. The factory hood also reverses and stores back over the barrel for a very small package. Every time I go to thin the herd of lenses it goes back in my cabinet.

Added vvvvvvvvvvv
https://www.pentaxforums.com/lensreviews/S-M-C-Super-Takumar-150mm-F4.html
Forum: Pentax SLR Lens Discussion 04-08-2018, 10:37 PM  
Lightweight/compact telephoto legacy lenses (m42 or K)
Posted By lmd91343
Replies: 30
Views: 3,030
If want reach that is very light for the focal length, try the 200mm & 300mm tele Takumars. They are small, lightweight, excellent, and inexpensive. I have both.

Takumar/Tele-Takumar 200mm F5.6 Reviews - M42 Screwmount Telephoto Primes - Pentax Lens Reviews & Lens Database

Tele-Takumar 300mm F6.3 Reviews - M42 Screwmount Telephoto Primes - Pentax Lens Reviews & Lens Database

---------- Post added 04-08-18 at 10:41 PM ----------

Also the factory hoods reverse and store over the lens barrel. In storage it has a small size with a hood.
Forum: General Talk 04-08-2018, 11:46 AM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Excellent item. It’s a doublet. It has very little distortion. I have that one in that size. The series of Canon doublet and triplet diopters are the best next to macro lenses. Also, they are a lot easier to carry than macro lenses.

They are very expensive especially in that size. I hope you got a good deal.
Forum: Post Your Photos! 03-19-2018, 10:30 AM  
Night Milky way pano
Posted By lmd91343
Replies: 4
Views: 581
Beautiful!
Forum: Pentax DSLR Discussion 03-11-2018, 12:56 PM  
Infrared Photography, and the Pentax world
Posted By lmd91343
Replies: 22
Views: 3,702
IR photography is fun! I started with filters on rangefinders with darkroom work (my hair is gray) and now I’ve used a converted K10D for years. My 20-40 limited lives on my K10D. I have posted about 40 IR pictures on this forum.

If all you have done is think about trying IR, it is a bit premature to spend hundreds and hundreds of dollars buying a camera and then converting it. Instead try it with a filter first on your current camera and lens. It takes a little more exposure time and the use of a tripod, but it is cheaper. Rather than spending 20 seconds to compose, setup, and expose a shot, you will spend two minutes. This works my non-converted K20, K5, and K3. There are several threads here on how to do that. Then after you’ve confirmed your interest, buy and convert a camera. Save your bank account from potentially unneeded injury.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-09-2018, 02:15 PM  
Canon F1 Behaviour
Posted By lmd91343
Replies: 21
Views: 2,068
You were not confusing. I understood. I just wanted make the post “stand alone” in case some one did not read the entire thread. :)

Did you need information on the vf displays, viewfinders, metering patterns, types of metering, and exposure automation of the first two F-1 models? They are different than the third model.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-09-2018, 11:52 AM  
Canon F1 Behaviour
Posted By lmd91343
Replies: 21
Views: 2,068
There are two images in your post. The top image is of a T70 or T50 camera which are consumer/hobbyist models.

The second image is of an F-1 New viewfinder. It is in manual or shutter speed priority mode. The shutter speed is set to 1/60 and the lens is set to f8. The largest diameter of the lens iris is f4. The camera is set to “perfect” exposure. The camera is set for normal(open aperture) metering. The viewfinder information assist light is off.

Other info in the viewfinder:
The lollipop is exactly one stop wide.
The black tick mark on the right is for stop down metering and battery check
The camera has a type “PE” screen installed.
The camera is set to 18% rectangle metering.
The focus aid is split image and microprisim combined.
It is impossible to know what kind of viewfinder is attached.

From conversations with a Canon technical person:
The power and a portion of the mechanism for shutter speed priority operation were placed in the various winder and drives to decrease the size, weight, and internal complexity of the camera. The rational was that only sports and news photographers would use shutter speed priority, and they would have one of the motor drives or the power winder attached. The average hobbyist or non-news/sports professional would only use manual or aperture priority mode.

Only the widest opening of the lens was communicated to the camera from the lens and never the narrowest. Therefore only the bottom red area changed as different lenses were mounted. The three red tick marks near the top represent the most common canon lens values narrowest diameter. They never change as different lenses are mounted.

Some of the latest canon fd series lenses had the ability to communicate the smallest aperture, but no fd camera could read it. I guess that enhancement was scrapped when they moved to autofocus ef lenses.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-07-2018, 09:54 AM  
Canon F1 Behaviour
Posted By lmd91343
Replies: 21
Views: 2,068
I have both the second and the third F-1 models. The third is my favorite 35mm camera.

With respect to the third model (F-1 New), aperture priority auto exposure is available across ALL viewfinders. However, it is only with the eye level AE finder that the camera selected shutter speed is visible. The speeds are displayed horizontally across the bottom viewfinder with a with a needle pointing the camera chosen speed. The lens aperture, chosen by the user is displayed as a single number to the right of the speed.

With ANY of the non AE finders, pull up the shutter speed dial and tun it to the “A” for aperture priority operation. That is all!

For either manual or shutter speed priority operation, the possible lens apertures are shown in a vertical column on the right side of the VF with a lollipop over the chosen lens opening. Only valid apertures, for that lens, in the non red area, can be selected. The aperture values that are beyond the range of the mounted lens are colored red. A needle moving up and down along the lens opening values indicates a hash of the light value and asa, just like our Pentax Spotmatics. In manual mode, adjust the shutter or lens opening until the lollipop and needle line up for the proper exposure.

For shutter speed priority, one of the motor drives or the power wonder must be attached. A rod, driven by the drive/winder comes up from the drive, internally to the camera, and manipulates the lens iris.

BTW, the third F-1 version has three selectable metering patterns: 2% spot; 18% center of frame; and full frame metering.

---------- Post added 03-07-18 at 08:58 AM ----------

The operation and metering patterns of the first and second models are different than that of the third’s. I’ll write up those tonight.
Forum: General Talk 03-06-2018, 11:31 PM  
Your latest acquisition
Posted By lmd91343
Replies: 20,596
Views: 1,468,721
Good news to hear. I’ll keep you in my thoughts. Retina repairs usually have a good result. I know it is scary. I had a torn retina about half a year ago with a good resolution.

Just worry about taxes :D not the doctor appointment and catch the whales next year.
Forum: Pentax SLR Lens Discussion 02-24-2018, 06:26 PM  
Advice - best black permanent marker for lens touch-ups?
Posted By lmd91343
Replies: 30
Views: 4,239
+ 1

It works great. Some I applied decades ago on heavily used lenses looks as good as new!
Forum: General Photography 02-24-2018, 12:58 AM  
Lens and gear selection help and sightseeing help for Europe trip
Posted By lmd91343
Replies: 29
Views: 2,230
Luckily my wife has learned to walk again, so a wheelchair is not a concern. She just tires easily. My major concerns revolve around uneven footing that can affect her balance, her energy levels (it takes a lot of energy for her to walk), and stairs (even more so with uneven ones). I’ll have a firm grasp on her belt on stairs.

Luckily, we have planned 10 or 12 off days to rest or to make up for days that we have to drop out from our itinerary.

The planning and research is harder than I thought it would be. You are so right about that.

---------- Post added 02-24-18 at 12:20 AM ----------



Please, don’t be insulted. The comment was offered in jest. That is why I put the “winky” face in the post. No insult was intended. You seemed proud of the 6000 number. That’s a good amount to cull from and post-process on rainy and off days.

I wish I could take a long lens or tele zoom with me. But that would be too much weight. My longest might be my 70 limited or a tele extender (Tamron 1.4x) on my 16-50. Which do you think would be best for the tattoo festival and architectural details?
Forum: General Photography 02-23-2018, 11:39 PM  
Lens and gear selection help and sightseeing help for Europe trip
Posted By lmd91343
Replies: 29
Views: 2,230
She showed the doctors!

Thanks.

---------- Post added 02-23-18 at 11:36 PM ----------



Thank you!

She has worked so hard. She has learned to walk, talk, swallow, eat, and a dozen smaller things all over again. I am so proud of her. Much of our research has centered on her comfort. It is in everything I check for her comfort.

Photography is priority #3 on my list.

I will bring a backpack that stays in the vehicle. It will have my tripod and my k5 as a backup to my k3 in the pack.

I appreciate the link.
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