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10-19-2010, 02:29 PM   #16
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QuoteOriginally posted by creampuff Quote
Could it be the Auto EV Compensation in the Custom Menu...
But then it could be how the algorithm was written.
It wasn't that BUT I did a reset and it got rid of it. No longer a problem. Don't know if the flash did it or not. Might try with flash to see if I can get it to recreate issue.

10-19-2010, 02:34 PM   #17
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Nope. Can't recreate it. Thanks everyone for your help. The reset fixed it.
10-19-2010, 02:44 PM   #18
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QuoteOriginally posted by jrforman Quote
When I put the K-5 in P mode AND am in a bright setting, it won't let me lower the Aperture so the lens is wide open. If I cover the lens so it is dark, it will and then it will allow me to shoot at that Aperture. Same thing with the shutter speed. When I adjust the shutter speed downward it won't let me go beyond a certain point (the brighter the higher) until I cover the lens.

So my question is this,

1) Is it mine or is it everyones...

or

2) Was there a major change as to how the "P" mode works from the K20D?

Aperture and shutter priority do not have this issue.

Thanks.

jrf

Note; I tried different lens. Same Results. Pulled battery off. Same results. Took off Grip. Same Results.
Can't speak for the K-5 (as I am still waiting for mine) but I have seen that problem on the K-7 a couple of times. Seams to be a bug in the software that is still there in the K-5 then. I have managed to get out of it by turning the front wheel, then turn the back wheel again. I have not been using Auto ISO when this happened as far as I know (as I use it very seldom).
10-19-2010, 02:46 PM   #19
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QuoteOriginally posted by deadwolfbones Quote
Yeah, just tried it as well with my K-5 and FA43, also in Auto-ISO.

If I'm pointed at a bright light source and my aperture is already set to a relatively narrow setting (say f/8), I can't widen it beyond what gets the shutter speed to 1/8000th.

However, if I aim at a dark area and change the aperture to f/1.9 I can then shoot at f/1.9 no matter how bright my subject is (though of course the 1/8000 is flashing like crazy in the viewfinder and the shots are waaaay overexposed).
What a weird and random and HUGE emoticon.

10-19-2010, 02:56 PM   #20
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O.K. Just figured it out. After reset I adjusted each changed parameter and checked out each one. When I adjust ISO Sensitivity Auto settings to 12,800 at upper range it occurs. If I leave it at default at 3200 it does it only IF bright out enough. It seems like it won't allow an aperture greater than the aperture that would be used at max shutter and maximum auto iso setting [which is what the manual exposure at that ISO would be]. So I would bet that the people who didn't have this issue in bright (outside/sunny day light) didn't have a max ISO auto setting of 12,800 but the 3200 setting. Make sense?????
10-19-2010, 03:35 PM   #21
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Yes, and pointing your camera toward a dark scene will allow you to choose a wider aperture again...
Exactly the same problem as on the K20 and K7...
Can't remember for K10, though...
10-19-2010, 03:49 PM   #22
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QuoteOriginally posted by dlacouture Quote
Yes, and pointing your camera toward a dark scene will allow you to choose a wider aperture again...
Exactly the same problem as on the K20 and K7...
Can't remember for K10, though...
Actually the K20 would default to the lowest ISO in the auto setting where it appears the K-5 goes to the highest ISO in the default. Prob the K-7 works as you say but since I don't have it, I don't know. Thanks.

Opps. MY error - just didn't have good enough light. You were right about the K20.

Last edited by jrforman; 10-19-2010 at 03:51 PM. Reason: wrong info
10-19-2010, 06:31 PM   #23
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What minimum f/number is your lens - I think this tends to happen on large aperture lenses, and there is a way to modify the behaviour of the Aperture vs Shutter in Auto ISO.

On the K-7 there are 3 Auto-ISO flavour settings - set through the same menu.- Slow, Medium, Fast.

"Slow" will set a lower Auto-ISO and be less reactive, and allow you to close your aperture and set a slower shutter speed in bright light.


Last edited by kittykat46; 10-19-2010 at 06:52 PM.
10-19-2010, 07:13 PM   #24
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QuoteOriginally posted by kittykat46 Quote
What minimum f/number is your lens - I think this tends to happen on large aperture lenses, and there is a way to modify the behaviour of the Aperture vs Shutter in Auto ISO.

On the K-7 there are 3 Auto-ISO flavour settings - set through the same menu.- Slow, Medium, Fast.

"Slow" will set a lower Auto-ISO and be less reactive, and allow you to close your aperture and set a slower shutter speed in bright light.
There is that setting on the K-5. But it doesn't influence this issue. Let me try to clarify the issue. I don't think I have done a good job on that. Here goes....

In P mode, if you try to adjust either the Aperture or Shutter Speed it will only allow the camera to be set to the either the minimum aperture for the fastest Shutter speed OR the fastest Shutter speed for the maximum (highest) aperture based off of the highest ISO speed in the Auto Range and current light conditions. You can get around this easily by covering the lens and setting what you need. This wasn't an issue before because we didn't have that high of ISO speed.

Let me know if anyone has trouble understanding this.

jrf
10-19-2010, 07:37 PM   #25
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I've run into this as well on my K20D.

Basically, with auto-ISO, the camera chooses something around 400. Then you close the aperture down so it bumps the ISO to 800. Then you want to change the shutter speed but the camera won't let you because it is still at ISO 800 or something.

My guess is that the meter is somehow messed up similar to the default .3 sec thing with M lenses. Too great a difference in light changes and the meter just gives up.
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