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Forum: Pentax DSLR Discussion
09-02-2010, 02:12 AM
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You could attach the optional battery grip and use its shutter release button, holding the camera upside down in your left hand.
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Forum: Pentax News and Rumors
07-09-2010, 04:14 AM
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Suspecting you are confusing borders with corners, I see nothing in the Photozone test supporting your claim.
BTW, the Photozone figures give merely a hint to the quality of a lens. The relevance of MTF50 measurings is rather limited.
If you don't see the point... well there will be others who will.
I think you are lacking experience.
Comparing a 28mm equivalent to a 16mm lens is really useful. :lol::lol:
BTW, I have not seen any 24 MP pictures with a 4/3 camera.
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Forum: Pentax News and Rumors
07-07-2010, 08:45 AM
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The image quality shown in the sample gallery is excellent. To expect an f/2.8 wide angle zoom to be as sharp in the corners as in the center is not reasonable. After all, f/2.8 is never a good choice if you want to get everything sharp. :rolleyes:
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Forum: Pentax DSLR Discussion
10-08-2009, 01:17 AM
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I still can't find any influence neither of the Auto-ISO slow/normal/fast setting nor of the program line.
However, on which aperture the setting "hangs" depends on the range of Auto-ISO. With ISO 100-3200 or 200-6400 it is f/4, with ISO 100-1600 f/5.6 etc. If you use ISO 100-400 it is f/11 and you will hardly notice the effect. Anyway, it is a bug!
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Forum: Pentax DSLR Discussion
10-07-2009, 12:58 PM
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Try this:
Put a fast lens on your K-7. (<= f/2.8)
Select mode P with Hyper-Program. (CF 22 value 1 or 2)
Set Auto-ISO to 100-6400.
Point the camera to a subject bright enough to read ISO 100 (still in Auto-ISO).
Activate Hyper-Tv mode by turning the corresponding e-dial.
You will not be able to select slower shutter speeds than the one giving an aperture of f/2.8. I. e., Hyper-Tv will be restricted to very fast shutter speeds.
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Forum: Pentax DSLR Discussion
10-07-2009, 08:25 AM
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The problem is rather that the camera does not give the shutter speed I want to select. E.g. from 1/250" f/8 (selected by program line) it goes to 1/1000" f/4 instead of 1/180" f/9.5. (Or with less light, to 1/350" f/4 - but always f/4!?)
I am discussing that also on a german speaking forum. Some users have confirmed the issue while others have not. We are investigating further...
No you don't. You have the control (or should have it) over the shutter speed when you turn the e-dial, regardless of which program line is selected.
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Forum: Pentax DSLR Discussion
10-07-2009, 02:21 AM
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No, had it in "Normal" first, but tried also MTF and "Fast". The program line has no influence on this odd behavior. Anyway, the HyperTv function is designed to override the program line, so the program line should be completely irrelevant.
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Forum: Pentax DSLR Discussion
10-07-2009, 12:58 AM
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You refer to CF 9 which had also been my first thought. But no, it doesn't make any difference.
BTW, even if CF 9 was ON, the behavior should not that way. CF 9 should only interfere with shutter speeds or f-numbers which do not allow for a correct exposure. That is not the problem, however.
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Forum: Pentax DSLR Discussion
10-07-2009, 12:21 AM
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In "Hyper-Program" mode (P mode with Custom function 22 set to default) you should be able to select any shutter speed with the front e-dial (or with the rear dial, if CF 22 is set to 2). With the K7 and Auto-ISO enabled, however, you can select faster speeds as you wish, but when you try to select a lower speed, it will jump to some fixed f-number (!). With the DA40 e.g. it will always jump to f/4 and the corresponding shutter speed. In low light it will first decrease ISO, but when it reaches ISO 100 (or your selected minimum ISO), the same jump will happen and it is not possible to select a slower shutter speed.
This is really odd and seems to be a firmware bug. Hasn't anybody noticed this before? :confused:
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Forum: Pentax News and Rumors
08-28-2009, 04:49 AM
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Of course there is no consensus, because it is contradicted by the fact that Hoya never mentions its alleged ownership of Tokina or Kenko and it is also very unlikely from a business point of view. Why should Hoya integrate Pentax completely into its operations, but keep a second lensmaker as an affiliate? Why wouldn't they move the lens manufacturing to Vietnam, as they did with Pentax's? Why would they share only the optical design, but not the barrel design?
The false rumor that Hoya owns Tokina is nothing but a naive speculation and wishful thinking, based on a misinterpretation of the fact that Hoya licensed its brand for the Kenko filters and more misunderstandings by some journalists and forum writers, who use to cite each other in circular ways. :rolleyes:
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Forum: Pentax News and Rumors
05-18-2009, 05:01 AM
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Forum: Pentax News and Rumors
05-18-2009, 12:56 AM
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Perspective correction is never done by tilting the lens but only by shifting. It does not matter if the lens or the sensor is shifted. Focus is not affected by shifting.
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Forum: Pentax News and Rumors
05-08-2009, 05:28 AM
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Not strange, same design as in K200D which works fine and is also sealed.
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