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Forum: Pentax Medium Format
04-06-2015, 09:34 PM
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I decided to stick with the pentax system for a while longer, and upgraded my 645D to the Z. It arrived just in time for the weekend and I had a chance to shoot a few test images. I don't regret the purchase one bit and I'm loving the camera even more than I did the 645D. The live view and high ISO are game changers. Now I need to find some sherpas that will agree to lug this baby up to some higher altitudes.
6400iso
100iso
100iso
100iso
6400iso
6400iso
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Forum: Pentax Full Frame
02-05-2015, 09:45 AM
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Last time they tried that, they ended up with the K-01.
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Forum: Travel, Events, and Groups
03-28-2015, 05:40 PM
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I make the logo on the back
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Forum: Pentax Full Frame
03-07-2015, 01:58 PM
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Or, pretend FF does NOT make a big difference - perhaps even less so to the clients - and that everything will be OK.
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Forum: Pentax SLR Lens Discussion
04-22-2012, 05:44 PM
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OK, so this seems to come up every few days or so - for some reason there seems to be a thought that there's not a lot of pentax full-frame glass that you can buy off the shelf.
There's a a great thread here from falconeye about what Pentax DA lenses are suitable to be used on FF - but for now I'm going to limit this list to three (edit: four) rules:
1) The lens has to be currently manufactured in K-mount (no discontinued lenses)
2) The lens must have, at some point, been described as full frame by the manufacturer/retailer. Patents count.
3) Must be available from a 'normal' retailer. No special-order 50mm f/1.2.
4) Must be a 'normal' (wish I could come up with a better word) lens. This list is not intended to include special purpose lenses, like pinhole, mirror, etc., lenses. Those lenses are nice but auxiliary to a 'system'.
5) Added Feb 19 2013 - must not have failed tests specifically designed to see if the lens is 36x24. This was added due to recent PF tests showing the 60-250 and 560 having severe vignetting.
Pentax:
- FA 31mm f1.8 Limited
- FA 35mm f2.0
- FA 43mm f1.9 Limited
- DFA 50mm f2.8 macro
- FA 50mm f1.4
- DA 50mm f1.8 (caveat: described as FF by retailers and seems to perform as FF lens. Unknown if Pentax told retailers it was FF.)
- FA 77mm f1.8 Limited
- DFA 100mm f/2.8 macro
- DA* 300mm f4
A Honorable mention to 35mm f2.4
B Honorable mention to 40mm f2.8, with most saying it is close to full-frame performance
C Honorable mention to 55mm f1.4
D Honorable mention to 200mm f2.8? Has this ever been described as full frame?
E Future possibility for 14-28 on roadmap . Seems unlikely if reports of patent being for APS-C are true.
F Future possibility for 24-75 on roadmap
G Future possibility for 100-400 on roadmap
2012/02/19: Possibility of 560mm removed
2012/02/19 DA* 60-250 f4 removed
Sigma
10. 15mm f2.8
11. 20mm f1.8
12. 24mm f1.8
13. 28mm f1.8
14. 35mm F/1.4 DG HSM ART
15. 50mm f1.4
16. 50mm f2.8 macro
17. 70mm f2.8 macro
18. 85mm f/1.4
19. 300mm f/2.8
20. 500mm f/4.5
21. 12-24 f/4.5-5.6
22. 24-70 f/2.8
23. 70-200 f/2.8
24. 70-300 f4-5.6 DG Macro/ 70-300 f4-5.6 APO Macro/ 70-300 f4-5.6 OS (Surely all three of these aren't still sold?)
25. 120-400 f4.5-5.6
26. 150-500 f5-6.3 DG APO OS HSM
27. 50-500 f/4.5-6.3 APO DG OS HSM
Tamron
28. 90mm f2.8Macro
29. 28-300mm f3.5-6.3
30. 28-75mm f2.8 XR Di LD-IF
31. 70-200 f2.8 'macro'
32. 70-300 f4-5.6 'Macro'
Samyang/Rokinon/Bower/Vivitar/Phoenix
33. 14mm f/2.8
34. 24mm f/1.4
35. 35mm f/1.4
36. 85mm f/1.4
Phoenix
37. 28-210 f/4.2-6.5
38. 19-35 f/3.5-4.5 (actually two, manual and autofocus)
Lensbaby
I'm not going to put these on the list. I don't know how many are actually different lenses vs. different 'packages' of the same lens. They appear to be advertised as FF.
Schneider
39. 90mm f/4.5 T/S
40. 50mm f/2.8 T/S
Zeiss/Voigtlander
Some are available but these lenses are discontinued as per Digitalis.
Toy/Pinhole Lenses:
See posts by RioRico below.
For reference, from the two major Pentax mount producers I see:
Pentax:
9 current lenses.
4 more currently described APS-C lenses work well on FF.
3 lenses on roadmap might be FF.
Primary weaknesses: Primes below 31mm, mid-range zoom (assuming the 24-75-ish lens on roadmap is not FF), wide angle zoom (assuming the 14-28-ish lens on roadmap is not FF, )telephoto zoom. No primes between 100 and 200. Nothing above 300.
Sigma: 17 current lenses
Primary weaknesses: No primes between 85 and 300. Nothing above 500.
Edit 8/22/2014: Removed Sigma / 70-300 f4-5.6 APO Macro/ 70-300 f4-5.6 OS. Added Sigma 35mm F/1.4.
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Forum: Weekly Photo Challenges
01-15-2015, 06:25 PM
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Bering Sea Hunters
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Forum: Pentax SLR Lens Discussion
01-15-2015, 01:30 PM
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