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Forum: General Photography 09-26-2023, 09:04 AM  
Why I might finally leave Pentax... for GOOD.
Posted By rrstuff
Replies: 194
Views: 13,033
Back in the day people would have cameras for 20 years at a time. There are cases when new tech makes it easier and more fun to take photos. In other cases new tech allows you to take pictures you would not be able to take otherwise. If you're reaching that point, don't think twice and switch. Life is too short to be frustrated by equipment.

---------- Post added 09-26-23 at 09:05 AM ----------

Also, why not have more than one system? That's what I do ;).
Forum: Post Your Photos! 11-01-2014, 03:13 AM  
Pets This is a baby boar
Posted By rrstuff
Replies: 7
Views: 903
Taken with a 55-300 DA-L in San Diego zoo.
They are small enough to fit on top of a palm.
Forum: Pentax Q 10-10-2017, 10:52 PM  
Anybody hear about this metabones adapter? f/0.666???
Posted By rrstuff
Replies: 29
Views: 4,330
There were a lot of tests when they first came out a few years ago. Reviews were good.
Lens Rentals | Blog
Forum: General Photography 03-13-2017, 08:53 PM  
Stolen equipment
Posted By rrstuff
Replies: 15
Views: 2,981
That's it. They simply couldn't get their Pentax gear through a retailer and looked for alternative sources.
Forum: General Photography 10-21-2017, 02:07 AM  
NASA released the Hubble Messier catalog on Flickr and wow, amazing
Posted By rrstuff
Replies: 10
Views: 1,430
Show it to anyone who says equipment doesn't matter in photography.
Forum: Pentax SLR Lens Discussion 01-06-2015, 07:00 PM  
what would be your take on FA 20mm vs FA 20-35mm
Posted By rrstuff
Replies: 25
Views: 4,071
I would rate FA 20-35mm at 9.24 and FA 20mm at 9.67. i.e. I would check the reviews, because these two are popular enough to be reviewed here. Seems like people like both.

SMC Pentax-FA 20-35mm F4 AL Reviews - FA Zoom Lenses - Pentax Lens Reviews & Lens Database
SMC Pentax-FA 20mm F2.8 Reviews - FA Prime Lenses - Pentax Lens Reviews & Lens Database
Forum: Canon, Nikon, Sony, and Other Camera Brands 05-01-2017, 12:33 AM  
A cheap long telephoto setup with good autofocus, options.
Posted By rrstuff
Replies: 5
Views: 1,355
Guys, thanks for all the suggestions and sorry about the delay. I had to catch up on some work and didn't login here for 3 weeks.

I decided to struggle a bit with da-l 55-300 and see what are the limitations. My conclusion is that it can work, although I would like something ~2x longer, and something sharp wide open. But 55-300 will do for now.

Once I figure out what are the most important factors in birding I will jump for a super telephoto lens and maybe a body to match. What I learned that K-3+55-300 can work, although there will be some missed shots. I might get better with time. As of now it seems important factors in, rough order, seem to be: lighting, focal length, steady hands, AF depth-tracking, buffer size, FPS, lens sharpness, high ISO noise, AF tracking, sensor resolution. I will spend a few more sessions and see if the list will get reshuffled.

Here are some shots from my first-day birding, K-3 + 55-300 DA-L, mostly 300mm F8, iso 400-1600, shutter 1/2000-4000, hand holding, but in low position.
Forum: Canon, Nikon, Sony, and Other Camera Brands 03-15-2017, 08:57 PM  
Olympus Officially Ending the 4/3 Product Line
Posted By rrstuff
Replies: 31
Views: 3,129
I really liked four thirds. I had five of their cameras:
E-300, E-500, E-510, E-3 and E-1

And four lenes:
14-45, 40-150 F3.5, and later 11-22 and 14-54, when the prices went down.

I only shot the E-300 and E-510, the rest were bought recently out of nostalgia, and because they costed pennies. I got some of the best shots using their kit lenses (14-45, 40-150), because I simply couldn't afford more when I was in college.


E-3 with 40-150mm F3.5-4.5


E-300 with a 14-45mm kit lens:


E-300 with a 14-45mm kit lens:


I am seriously considering getting an E-3 for $150 and filling up on SHG zuikos just for fun, now that they are third-of-a-price and I can actually consider buying them, instead of just hoping.
Forum: Pentax Price Watch 02-24-2017, 02:00 AM  
Tamron 70-200 - $599
Posted By rrstuff
Replies: 4
Views: 1,358
NEW TAMRON SP AF 70-200mm F/2.8 Di MACRO LENS for PENTAX Cameras A001P

Canadian ebay store. They used to run ~$600 K-3s a couple of years ago.
Forum: Troubleshooting and Beginner Help 01-18-2017, 05:31 PM  
What is wrong with my camera?
Posted By rrstuff
Replies: 27
Views: 2,971
It really looks like something is either mechanically loose or you have a cold solder. What suggest this is your relatively cold climate (lots of temp shifts when you go in and out), length of use of the camera and intermittent nature of this problem. Here's a bit about it: Cold Solder Joints: Tracking Down Intermittent Noises And Disappearing Sound

this is fixable, if you are willing to open up a camera, and are willing to solder a bit.

You can look up youtube videos for some techniques:















You Tube


















You Tube



Basics: How Not to Solder | Evil Mad Scientist Laboratories

It will probably continue working on and off like that for a longer while, but it will be unreliable.


Actually one more thing, it seems that the SD circuit block is on a separate board, at least in Samsung GX10. You could be able to just replace the whole block. See page 196.
File from: https://www.pentaxforums.com/forums/189-repairs-warranty-service/330056-possi...-card-pcb.html
https://dl.dropboxusercontent.com/u/72661506/6810689-GX10CSENG.pdf
Forum: Pentax News and Rumors 01-27-2017, 01:39 PM  
Pentax KP - High ISO Samples
Posted By rrstuff
Replies: 350
Views: 60,413
I wonder if ISO figures are inflated, and if yes, by how much. Do we know of any sensor tech breakthrough that would warrant a drastic increase in a sensor signal?
Forum: Pentax DSLR Discussion 01-23-2017, 07:17 PM  
Any possibility of a 'K100' full frame prosumer body in the near future
Posted By rrstuff
Replies: 71
Views: 8,571
You could get a used sony A7, Sony A850, or Canon 5D MK i, Canon 1Ds and have enough money to buy a couple of inexpensive primers or a decent zoom (more so with canons). This would be my cheaper alternative if you needed a fullframe, could sacrifice some performance and only had a $1000. You could get a 5D Mk i for some $350 and perhaps even a basic non-is L-lens (24-105 F4?), or a 35F2+85F1.8 for the remainder.

If you have a $1000 for the body and could buy some lenses for the rest (i.e. switch systems), then a used D610 is less than $1000, but NIkon lenses are pricey. I think I would go with a 5DMkii in that case, which is around $700-800, but has generally cheaper lenses in my experience, especially second hand.
Forum: Digital Processing, Software, and Printing 01-22-2017, 05:38 AM  
APS-C crops from full frame image in post-processing?
Posted By rrstuff
Replies: 21
Views: 2,287
If you want a free software that can do it quickly, it would be a quick script in python.
e.g. Crop Images with PIL/Pillow
Forum: Pentax News and Rumors 01-18-2017, 05:50 PM  
Pentax "KP" DSLR registered in Indonesia
Posted By rrstuff
Replies: 1,319
Views: 167,040
On the other hand, DA15 should fit into a K-cup slot perfectly.

---------- Post added 01-18-17 at 06:50 PM ----------



Given the recent advances in this tech, I would vitrify Eric ;).
Forum: Pentax SLR Lens Discussion 01-18-2017, 05:48 PM  
SMC Pentax-DA 15mm Strange Test Shots
Posted By rrstuff
Replies: 15
Views: 2,376
What I tend to do is to choose a corner focus point and it generally looks good for the landscape shots. I typically do between F6.3 in low light to F11 in good light.

F11: Against some odds - Death Valley by Jerzy Szablowski - Photo 173864937 / 500px
F9: Diagonal, Badwater Basin by Jerzy Szablowski - Photo 174200343 / 500px
F7.1: Malibu Creek by Jerzy Szablowski - Photo 192206947 / 500px

All done using a corner AF point. A shot at F6.3 is in the message above.
Forum: Post Your Photos! 01-17-2017, 01:09 AM  
Landscape Sunset in Joshua Tree
Posted By rrstuff
Replies: 4
Views: 967
We saw some spectacular colors on the way back from Joshua Tree Natl Park. I thought I would share.
Forum: Pentax SLR Lens Discussion 01-13-2017, 02:54 PM  
My lens lineup has a gap from 15mm to 70mm!
Posted By rrstuff
Replies: 43
Views: 3,362
Here's from my 16-50 invoice from KEH, from last october, with 180 days warranty, good sdm, EX+ condition for $400, with tax and shipping. I agree $300 is a more realistic price for one with a broken SDM.


2187186 Pentax 16-50mm F/2.8 SMC DA* ED AL IF SDM K Mount Autofocus Lens For APS-C Sensor DSLRS {77} - Excellent Plus
Serial:
If in lower condition:
1 $418.00
237547-1223325 Minolta 46mm LF-146 Front Lens Cap - Excellent
Serial:
If in lower condition:
1 $5.00

Subtotal $423.00
Shipping & Handling $19.95
Discount (Sitewide Sale - 15% Off Digital, IDEAL) -$63.45
Grand Total (Excl.Tax) $379.50
US-CA-91607 (9%)
$32.36
Tax $32.36
Grand Total (Incl.Tax) $411.86
Forum: Ricoh Theta 360° Cameras 01-11-2017, 10:47 PM  
Weathersealed Ricoh Theta?
Posted By rrstuff
Replies: 9
Views: 1,759
Watch out if they heat up. It's basically a wax in a form of film, so it can be a pain to take off if it heats up nearby its melting temperature.
Forum: Pentax SLR Lens Discussion 01-10-2017, 06:44 PM  
Portrait Lenses for APS-C?
Posted By rrstuff
Replies: 58
Views: 8,578
I always found the Pentax 2000mm F13.5 to be a pretty good portrait lens on APS-C. Here's one of the shots:


Forum: Pentax DSLR Discussion 01-07-2017, 07:24 PM  
Which camera after 7 years with K-x
Posted By rrstuff
Replies: 55
Views: 5,189
The adapters are the same, but autofocus systems differ. E-M1 is the only olympus in lineup that has an on-sensor PDAF for tracking and four-thirds lenses. This means the FT lenses focus about as fast on an E-M1 as on the old dSLRS. The tracking AF is supposed to be pretty good as well, and miles ahead of CDAF systems in E-M5 line. One thing of note is that E-M1 had a recent firmware update, which supposedly made the tracking AF a lot better, but this wouldn't be mentioned in online reviews. E-M1 II is probably going to be excellent, because they can utilize 20 megapixels of contrast data and PDAF at the same time, and they dedicate a whole image processor just to AF.
Forum: Pentax SLR Lens Discussion 10-12-2016, 06:21 PM  
What to take to Hawaii?
Posted By rrstuff
Replies: 31
Views: 3,033
It's a symbiosis. Take him, then he can carry all the lenses, no need to choose.
Forum: Pentax DSLR Discussion 10-11-2016, 06:24 PM  
K70 or K3ii, please help
Posted By rrstuff
Replies: 42
Views: 6,229
K-3II, built better, no aperture motor problems, built in GPS with astrotracer, more stable and silent shutter. All of those will be useful to you.

---------- Post added 10-11-16 at 06:24 PM ----------



If I was to wait, I would wait for the rumored mirrorless - even if just for a fast and accurate single-point CDAF.
Forum: Pentax SLR Lens Discussion 10-05-2016, 01:43 AM  
eBay Heck - do I still need this lens?
Posted By rrstuff
Replies: 42
Views: 3,283
I would skip the DA35, if you have a DA40 and a DA50. There is no added benefit. I would save the money for a DA15 or something else that's wide.
Forum: Troubleshooting and Beginner Help 09-27-2016, 07:46 PM  
Weird Results from Ilford XP2
Posted By rrstuff
Replies: 12
Views: 2,064
I read your title and thought, yes those XP2 shots are in color, that shouldn't be happening ;).
Forum: Pentax SLR Lens Discussion 09-28-2016, 01:04 PM  
Just for fun - what lens(es) is/are missing?
Posted By rrstuff
Replies: 37
Views: 3,153
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