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03-17-2019, 09:12 AM   #991
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QuoteOriginally posted by goatsNdonkey Quote
Lovely shots. I even like the faint Spaghetti-Os bokeh in the background on the second one.

Thank you.

03-23-2019, 09:42 AM - 3 Likes   #992
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K-3 with Tamron Adaptall-2 SP 55BB

03-25-2019, 12:35 PM - 5 Likes   #993
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KP+Tamron Adaptall-2 SP 500mm f/8 Mirror

04-17-2019, 01:24 PM - 3 Likes   #994
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Tokina 500mm F8 Mirror Lens on Pentax KS-2

I am becoming a fan of the Tokina 500mm F8 mirror lens (and my KS-2). These images were shot handheld at 1/250th or 1/320th of a second @ ISO 1600 in overcast conditions. Focusing the lens is the biggest challenge. I adjusted light and contrast in PP . The colors are straight from the camera. I made a deep felt lens hood for the stubby Tokina which helps a tremendous amount in reducing flare and ghosting. The mid 1980's Tokina is the best $50 I've spent in a while.

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05-07-2019, 02:52 PM - 6 Likes   #995
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Tamron 55BB 500mm f8 mirror

Samsung NX20. more pics in 300mm lens club/adaptall lens club.



05-07-2019, 06:16 PM   #996
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Quite exceptional.
05-08-2019, 03:57 AM   #997
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Yeah I look at these and I think "this is the one I keep, it's a sharp one" - but I listed it on ebay and it sold instantly, even without pics.
05-15-2019, 08:43 PM - 4 Likes   #998
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More Tamron 55BB samples: a couple of shots, one quite close, one farther away, each with accompanying 100% crops. Levels and sharpening applied.

When things click, the results are very good. But this lens is a harsh taskmaster, and mercilessly brutal to shoddy technique, but then that is to be expected when you try running it handheld like I do. There were a lot of duds in today's shooting, but that's on me. I know this because sometimes I can get clarity and detail like this:







Taken from about 60 meters away. I think. At least that's about what it looked like on Google Earth. Cropped a bit to straighten.





05-16-2019, 02:40 AM   #999
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Wow! Congrats!!
Thats a lot of detail!
05-21-2019, 07:36 AM - 4 Likes   #1000
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QuoteOriginally posted by gibikote Quote
Wow! Congrats!!
Thats a lot of detail!
Thanks!

Here are more shots from the same outing.







05-21-2019, 02:28 PM - 2 Likes   #1001
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Some more tamron 500mm 55BB pics - a 3rd example, seems like a good one actually. K3 again. All of the pics I have taken recently have rubbed in how imortant good light - ie bright sunshine - is in using these lenses and getting good results. It was noticeable that my focus efforts by eye (I have a tenpa 1.36x magnifier basically permanently on my K3), and the cameras in-focus cues, were pretty accurate when I double checked via magnified LV in these advantageous conditions.



Big crop.





Last edited by marcusBMG; 05-22-2019 at 06:47 AM.
05-22-2019, 05:47 AM   #1002
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QuoteOriginally posted by marcusBMG Quote
Some more tamron 500mm 55BB pics - a 3rd example, seems like a good one actually. K3 again. All of the pics I have taken recently have rubbed in how imortant good light - ie bright sunshine - is in using these lenses and getting good results. It was noticeable that my focus efforts by eye (I have a tenpa 1.36x magnifier basically permanently on my K3) were pretty accurate when I double checked via magnified LV in these advantageous conditions.
Yes, I'm trying to develop rules to help me get the most out of my 55BB, waiting until I have lots of light being one of which I try to obey. Another is not shooting when the subject is still really just small in the viewfinder-especially when light isn't good enough. That's the one I'm usually breaking most often in my hope/excitement/wish to shoot something that is probably going to look bad. Oh well, electrons are cheap, and sometimes optical miracles happen, so I'll likely keep breaking that one anyhow!
05-22-2019, 06:40 AM   #1003
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QuoteOriginally posted by Thagomizer Quote
not shooting when the subject is still really just small in the viewfinder-
Yeah the more you crop, the more your approach has to be absolutist in its diligence - less than half the frame (I mean actually 1/4 by area), then it's LV focus, bean bag (ideally) and remote shutter with timer, or sometimes shutter press while holding the lens pressed down into the bean bag to eliminate any shake/jerk from the shutter press.That sort of thing. The shelduck and the goose were both cropped quite a lot as you can see, but results not bad at all.
But it's of interest to push the lens to see what it can do. For me IME these mirrors are less friendly to cropping than refractive lenses. So normally the 500mm (vs eg 400mm/420mm/450mm) is no advantage.
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05-22-2019, 02:23 PM   #1004
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the male Sumatran Tiger at the Topeka Zoo and Conservation Center

K 3 II + Tamron Adaptall-2 SP 500mm F8 Mirror ( 55BB )

xpost from https://www.pentaxforums.com/forums/26-mini-challenges-games-photo-stories/8...ml#post4651670
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Last edited by aslyfox; 05-22-2019 at 02:29 PM.
05-22-2019, 08:28 PM   #1005
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QuoteOriginally posted by marcusBMG Quote
Yeah the more you crop, the more your approach has to be absolutist in its diligence - less than half the frame (I mean actually 1/4 by area), then it's LV focus, bean bag (ideally) and remote shutter with timer, or sometimes shutter press while holding the lens pressed down into the bean bag to eliminate any shake/jerk from the shutter press.That sort of thing. The shelduck and the goose were both cropped quite a lot as you can see, but results not bad at all.
But it's of interest to push the lens to see what it can do. For me IME these mirrors are less friendly to cropping than refractive lenses. So normally the 500mm (vs eg 400mm/420mm/450mm) is no advantage.
I've actually had good luck cropping images taken with mirrors. Focus has to be spot-on and there can be no blur from camera shake, etc. But if you can achieve these two requirements, the results can be quite impressive.

I have a couple of examples that I can show you, but unfortunately, I've just changed hosting services and I'm running into an unusual situation of not being able to access directories on my website. I'll have to contact my hosting service to see what's up with that. So stay tuned, maybe I can provide you with a couple of examples soon.
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