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Forum: Pentax K-3 III
12-09-2021, 11:04 AM
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I haven't tested interval shooting yet, that's something for next time. I was pressing the shutter button manually for each exposure (which means that there were 7 test exposures total).
Probably 4 shots per one calibration would have been OK in this case. After a few minutes the camera needs to be re-positioned anyway unless I'm willing to crop more, GPS or no-GPS. That's the limitation of Astrotracer in general.
At least in this example where all stars move relatively uniformly in the frame, from my experience I say it's as good as the standard Astrotracer with GPS/compass/tilt-meter as far as the end result is concerned. Better in that I didn't have to worry about calibration.
OTOH, once you do the calibration right for standard Astrotracer, you can point the camera anywhere you want in the sky without re-calibrating. That's not the case for Type 3, but that's a VERY small price because Type 3 "calibration" is relatively short (the manual says 30-50 sec) and completely automatic.
But Type 3 "calibration" could fail (or it could pass but the result could be blurry) under some conditions according to the manual, i.e.
- anything other than the stars are in the frame,
- you cannot get enough exposure for stars because of heavy light pollution etc.,
- focus is too soft,
- there's camera vibration.
They recommend GPS for starscape (landscape with stars) with wide angle lenses. Also there are some restrictions about the lenses.
- No fisheye.
- You can only use the wide and tele end of zoom lenses. The only lenses where the entire zoom range can be used are:
- HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE
- HD PENTAX-DA* 11-18mmF2.8ED DC AW
- HD PENTAX-DA* 16-50mmF2.8ED PLM AW
I don't know what the last one about zoom range really means. The only Pentax K-mount zoom I have is 55-300 PLM, but I'll use my Sigma 16-55mm zoom to see what happens for in-between focal length.
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Forum: Pentax Forums Giveaways
09-12-2014, 12:50 AM
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I have dedicated myself to taking some good pictures of my seven grandchildren; it’s just that these pics were never good enough using a point-and-shoot. So… I took the plunge and after considerable research, decided to obtain a DSLR and settled on a K-3. I now suspect it will take me many months and thousands of dedicated pictures to hone my new hobby. I am using the 18-135mm lens and would love to have a prime lens to improve my portraiture. I am attaching a K-3 picture of one of my grandkids (Skylar) for your evaluation. Thanks…
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Forum: Monthly Photo Contests
11-15-2019, 09:05 AM
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Well done to all the nominees... beautiful work, every one a winner for different reasons. Difficult to pick just one, but I chose one that made great use of lens characteristics (a soft spot of mine) ;)
For many, the processing (whether for film or digital) is as much a part of the photographic artistic process as capturing the image. I understand that's not to everyone's tastes, but it's definitely a valid component of the art...
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Forum: Monthly Photo Contests
04-15-2019, 09:16 AM
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Excellent examples of what we should all aspire to capture, the beauty of nature.
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Forum: Monthly Photo Contests
04-15-2019, 09:14 AM
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I thought they all were wonderful.
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Forum: Monthly Photo Contests
04-15-2019, 09:09 AM
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This is NOT going to be easy. They are all fabulous.
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Forum: Monthly Photo Contests
04-15-2019, 08:28 AM
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OMG!!! How do you vote for one, when all are fantastic.
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Forum: Monthly Photo Contests
04-15-2019, 08:18 AM
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Outstanding works! There are some gallery worthy wall-hangers here!
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Forum: Monthly Photo Contests
04-15-2019, 08:16 AM
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Could not have put it better. Well done to all the finalists.
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Forum: Monthly Photo Contests
04-15-2019, 07:37 AM
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Agreed as well - and very few of these images show evidence of excessive color saturation. Said another way, the beauty we see is that of nature itself.
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Forum: Monthly Photo Contests
04-15-2019, 07:31 AM
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All of these photos are phenomenal . It is very hard to choose just one.
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Forum: Monthly Photo Contests
04-15-2019, 07:30 AM
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I totally agree with mmichalak. Hard to choose just one!
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Forum: Monthly Photo Contests
04-15-2019, 06:14 AM
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I don't comment frequently here, but this time I feel that I need to say all the photos are absolutely stunning... well done to everyone!
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Forum: Pentax Price Watch
11-20-2018, 05:40 PM
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The PF Black Friday Loyal Site Supporter upgrade is back! Your donations are what makes it possible for us to continue posting in-depth reviews, visit and report on trade shows, expand our news coverage, maintain lens databases and resources, and add new site features.
For a $57 contribution to PF, your account will be upgraded to include:
- Loyal Site Supporter designation
- Unlimited attachment space on the forum
- Unlimited Pentax Forums marketplace access for personal & commercial sales
- Free Pentax DSLR eBook each year (new K-1 and KP models included!)*
- Attach photos in PMs
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- Access to member-only forum content & special T-shirt deals
To donate & upgrade your account, click here and select the first option shown on the page
You can donate via PayPal, credit card (non-recurring), or check/money order (please contact me). If you've donated via this special in prior years, your old donation may automatically renew at a lower amount, if you have opted to do so. Please check before donating to prevent duplicate charges (feel free to PM me).
We no longer partner with 2Checkout. To donate using a credit card without a PayPal account, select the second option in the list instead. If this gives you trouble (some countries don't support this feature), please send me a PM and we can set up a manual donation. Attachment 431346
If you are currently a site supporter, this upgrade will be added to the end of your current upgrade, potentially greatly increasing the duration of your account upgrade for free.
You can also choose to gift the upgraded account to another forum member: just type his or user username in at the bottom of the page before proceeding.*To receive your Pentax eBook, PM me the one you'd like (K-1, K-3, K-5, KP, K-50, K-70, K-S2) and you'll receive download instructions via PM.
Thanks for everyone's continued support!
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Forum: Accessory and Memory Articles
05-23-2012, 01:18 PM
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I have recently purchased from a second hand camera store a Pentax Wireless F remote. I could not for the life of me figure out how to use it. Come to find out when I opened the casing it didn't have a battery. So , I went to Radio Shack and purchased the correct battery (CR 1620) and tried to install it. BUT I can not figure out how to put it back together. I figured out which side need to go up (+/-) but can't figure out what to do with the little "airplane" metal piece. - picture attached. PLEASE HELP
I have read that this works with the Pentax K20D , but can anyone confirm?
- PentaxNewbie
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Forum: Monthly Photo Contests
10-05-2015, 05:52 AM
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Baby blue Forget-me-nots, Orange Poppy’s, Rosy Periwinkles, Yellow and Purple Pansies and plenty of sunlight create a backdrop of colour for this crystal bowl abstract.
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Forum: Winners' Showcase
09-03-2015, 08:45 PM
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Forum: Winners' Showcase
09-09-2015, 07:32 AM
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It's almost as if New Orleans was designed to be seen after dark on a foggy night.
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Forum: Winners' Showcase
08-05-2015, 11:18 AM
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Forum: Winners' Showcase
09-21-2015, 10:41 AM
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