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Forum: Pentax Medium Format 13 Hours Ago  
using reversed lenses that lack aperture rings
Posted By zapp
Replies: 5
Views: 326
What lens are you using in reverse. Somehow your question is lacking some information. Can you stop down the lens and just want to control the aperture from the camera? Controlling aperture on a 6x7 lens in reverse on a 645 camera... there will be no automatic adapter, no market.
Forum: Troubleshooting and Beginner Help 2 Days Ago  
to keep or return that is the question.
Posted By zapp
Replies: 7
Views: 515
If you are not happy, return it. Force yourself not to accept such troubles or try to identify the problem. I returned a couple lenses with nice specs that could have been nice, the just did not cut it and I returned them. If you like the specs, try another copy.
Forum: General Photography 2 Days Ago  
April Fools - Pentax D FA 35mm f1.4 may be down the pipeline??
Posted By zapp
Replies: 14
Views: 927
We will know in 5 years. Pentax will take its time.
Forum: Pentax SLR Lens Discussion 03-29-2020, 10:56 AM  
Pentax lenses measured worse?
Posted By zapp
Replies: 79
Views: 2,979
We are talking about 2 or 3 current lenses, tested on different cameras, looking at only two parameters. Sample size is one. Original Pentax designs make the difference on Pentax cameras with Pentax cameras.
The DFA*50 and the upcoming 85 are not available for D800 :-)
Forum: Pentax News and Rumors 03-29-2020, 12:22 AM  
HD Pentax-D FA★ 85mm f/1.4 SDM AW
Posted By zapp
Replies: 226
Views: 16,461
A dramatic improvement will be needed to replace DA* 200/300. New AF,... is not enough. Pentax rather fill some gaps in the lens lineup or present a different class of tele lenses, i.e. large aperture, diffractive optics, ...
2.8/180...200 glass is not updated by Canon or Nikon. Here the 2.8 tele zooms sell=win. Even 300 mm is covered by zooms these days. Heavier, pricier, but they sell. Looks like even Fuji is joining the diffractive optics waggon. I am not sure whether Pentax could justify development cost these days.
Forum: Pentax News and Rumors 03-27-2020, 10:01 AM  
HD Pentax-D FA★ 85mm f/1.4 SDM AW
Posted By zapp
Replies: 226
Views: 16,461
Pentax, please stop pointless discussions and deliver the lens.
Forum: Pentax News and Rumors 03-24-2020, 08:41 AM  
2020 K-mount roadmap update
Posted By zapp
Replies: 51
Views: 4,581
What’s new on the roadmap? 85 has a name and no tentative note on development or availability.
Forum: Pentax News and Rumors 03-23-2020, 10:55 AM  
HD Pentax-D FA★ 85mm f/1.4 SDM AW
Posted By zapp
Replies: 226
Views: 16,461
90% of the news is obvious... the dimensions are new, almost the same as for Sigma Art. I will get one when available. My 50 is happy to get a brother.
Forum: Pentax K-1 03-22-2020, 07:07 AM  
K1 or K1 II ? (both same price)
Posted By zapp
Replies: 18
Views: 1,020
Get the newer camera. I don‘t understand the fuss about downgrading af to screw drive and the long discussion about iso performance of K1 vs K1ii.
Firmware upgrades will cover ii longer, af is better, camera is newer, sell it later for more...
Forum: Pentax SLR Lens Discussion 03-22-2020, 02:08 AM  
PLM 55-300, immune to Fine Adjustments?
Posted By zapp
Replies: 20
Views: 946
What´s the Problem? Lens is in add adjustment. There is an effect between +/-10. Effect is small, but dof is large and also compensated for slight changes in af. Depending on lens, aperture, camera ... things can look quite different.
Forum: Pentax News and Rumors 03-19-2020, 11:42 AM  
K-New: still kickin'...
Posted By zapp
Replies: 47
Views: 6,550
Marketing material will be awesome - they have plenty of time now.
Production and distribution are quite difficult these days, but not impossible. Life is going on.
Forum: Pentax News and Rumors 03-06-2020, 11:16 PM  
Pentax Free Lens Promotion (EU wide)
Posted By zapp
Replies: 14
Views: 2,414
So the 50, the 35 and the 100M (last promotion with K1) can be added for free to one of the camera bodies. Good deal if you want to buy a camera. Pentax keeps pricing somehow stable. Just not the news most of us are waiting for.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-06-2020, 11:10 PM  
Found a MINT Nikon FM2n.....Wow !
Posted By zapp
Replies: 26
Views: 1,084
Sold mine long ago, very nice camera. Get sealed changed and run it for another 20 years.
Forum: Pentax Price Watch 03-05-2020, 01:08 PM  
Rare Lenses for Sale in Austria....
Posted By zapp
Replies: 6
Views: 775
Will haben!
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-02-2020, 09:55 AM  
Why isn't any PK-Nex with autofocus yet ?
Posted By zapp
Replies: 5
Views: 538
Everything is possible, there is just no market. Even if 200 people will immediately say, they want to buy such thing. Pentax has no interest, Sony has no interest and other mounts sell better.
Forum: Pentax SLR Lens Discussion 02-29-2020, 04:13 AM  
Zoom best focal length
Posted By zapp
Replies: 7
Views: 538
Define „best optical performance“. You can allow for larger distortion to improve optical performance. There will be no universal relationship.
Forum: Pentax SLR Lens Discussion 02-27-2020, 11:31 AM  
300 prime, DA* f4 or Sigma f2.8
Posted By zapp
Replies: 14
Views: 781
Sigma 2.8 is hard to find and out of service. Pentax DFA is still in service and easily available used/new.
If you really want 2.8 or are looking for a 500 get a Canon/Nikon camera and study the used market.
Forum: Pentax News and Rumors 02-27-2020, 11:16 AM  
Ten more lenses in the pipeline.
Posted By zapp
Replies: 314
Views: 29,922
I still go for the DFA 50, but I also agree that smaller lenses are needed for many different reasons. Small standard lenses are covered, so offer something more special to the rest.
Forum: Pentax K-1 02-25-2020, 06:06 AM  
Sigma Lens 50mm 1.4 DG EX HSM on K-1 - cropped to APS-C
Posted By zapp
Replies: 12
Views: 718
Buy Pentax.
Sigma did not cooperate with Pentax, so some retro-engineering fails.
Forum: Pentax DSLR Discussion 02-25-2020, 06:04 AM  
Is used equipment selling well?
Posted By zapp
Replies: 61
Views: 2,485
Maybe you are looking at the wrong market place. FA glass is typically overpriced due to small number of available units and lack of new designs. FA85 will sell well. DA300 should sell ok, DFA 24-70 the same.
What do you want to get new? K1 with 70-200/70-210?
Forum: Pentax Full Frame 02-16-2020, 06:13 AM  
Poll: Why did you go full frame?
Posted By zapp
Replies: 150
Views: 5,422
ALL Pentax lenses are designed to fit FF k-mount. They all clear the mirror of K1... APS-C sensor cameras could work with even smaller lenses. Longer flange focal distance increases distortion... so k-Mount is FF. FA31 for instance has complicated design of a wide angle with back clearance longer than focal length. Performs like a 50 on APS-C, but weighs and costs much more.
I am happy to make full use of FF lenses, larger pixel pitch, shallow DOF, ... just looking for more modern FF lenses. APS-C is a TC-Option for FF owners. Denser pixel pitch result in narrower effective field of view. K1 performs much better than K3 and cropping is a joy. Resolution is insane, I agree, but 24Mpix is significantly less on smaller format and low Iso performance is also worse.
The new aps-c flagship may compete feature wise with K1. K1 clearly stands out against K3 and also KP on the feature leveler me. The new aps-c may be interesting as TC, for travel as well as for really new feature set above K1.
Forum: Pentax DSLR Discussion 02-16-2020, 12:07 AM  
Best camera-lens combos for aerial photography
Posted By zapp
Replies: 23
Views: 1,159
You can even use google earth and fly at a certain height over a landscape. Check distance to calculate focal length. For cityscape a zoom starting at wide angle makes most sense. Optical viewfinder and full camera control are required. We once used a Sigma 20mm lens from helicopter and the wind just pushed the focusing ring back.
Make sure you know how to talk to the pilot. Zoom with the helicopter not with your feet. 645 has widest exposure leverage. You can pull even dark shadows.
Keep yourself warm.
We typically remove a door for aerial survey flights to lean out for vertical shots, with climbers fixation... An open door makes any photography easier. After first flight think what you missed, looks like you go several times.

Last but not least, take you time. The world looks gorgeous up there, take time for composition and exposure rather than taking as many images possible.
Forum: Pentax SLR Lens Discussion 02-15-2020, 11:55 PM  
Irix 45mm 1.4
Posted By zapp
Replies: 9
Views: 904
DFA*50 covers that base extremely well.
Forum: Pentax News and Rumors 02-15-2020, 04:50 AM  
"3 way" binocular and monocular projects
Posted By zapp
Replies: 16
Views: 2,004
4x magnification is nice for theatres and maybe some spectator sports - if you use binos in a theatre. 4x4x Is not for handheld use and with an opening of 20 mm the exit pupil is tiny. The market seems very limited.
Classic 8x20 wins for me, or a larger 8x30ish.
Forum: Pentax Q 02-15-2020, 04:32 AM  
How to convince Ricoh to crowdfund the Q macro lens?
Posted By zapp
Replies: 25
Views: 1,189
... and what projects will be cancelled for the crowdfunded product ...
The mono/bino crowdfunding project basically raises awareness towards a new product idea. It is not sparked by the crowd boy paid for by it.
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