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07-17-2015, 06:20 PM   #1
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Out of Focus Shutter Release

A quick question. I have two K3 bodies here on which I have these settings and both do exactly the same.
I have the AF button set to focus with the shutter button focus disabled, AfC center focus on nine zone,
first frame focus priority and action in AFC focus priority. If I deliberately try to take a photo that's out of focus,
it shouldn't release the shutter/curtain, should it? Both mine do. Any thought or words of wisdom?
My thanks in advanced for any comments or suggestions.

Eric.

07-17-2015, 06:39 PM   #2
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somewhere in the settings maybe 10-20 the option should allow for a shot not in focus.....kinda like the aperture thing set to allow for non 'a' lenses
07-17-2015, 06:45 PM   #3
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QuoteOriginally posted by Aaron28 Quote
somewhere in the settings maybe 10-20 the option should allow for a shot not in focus.....kinda like the aperture thing set to allow for non 'a' lenses
That's the thing, It shouldn't trip the shutter when out of focus with those settings, well, that's my understanding.
07-17-2015, 06:47 PM   #4
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ah...I misunderstood.....yeh I would think it would not....

07-17-2015, 07:46 PM   #5
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QuoteOriginally posted by Eebll Quote
A quick question. I have two K3 bodies here on which I have these settings and both do exactly the same.
I have the AF button set to focus with the shutter button focus disabled, AfC center focus on nine zone,
first frame focus priority and action in AFC focus priority. If I deliberately try to take a photo that's out of focus,
it shouldn't release the shutter/curtain, should it? Both mine do. Any thought or words of wisdom?
My thanks in advanced for any comments or suggestions.

Eric.
I think the shutter will always release unless you're in AF.S focus priority.

Adam
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07-17-2015, 09:05 PM   #6
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QuoteOriginally posted by Adam Quote
I think the shutter will always release unless you're in AF.S focus priority.
Just tried AF.S and still released. Tried AV, TAV, AND TV. mode, actually, any mode.
07-17-2015, 10:41 PM   #7
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So is the issue confined to when you use back-button AF? That is to say, do you see the same behaviour if you take a photo using normal shutter-button half-press AF?
07-17-2015, 10:44 PM   #8
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There was a long recent thread about this (I think) -- I believe it is because of using the back button focus. It is a change from older models...

07-17-2015, 11:42 PM   #9
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It could just be the way it is. I can auto focus on a subject then put it out of focus and the shutter still operates. If I make it
hunt by holding the AF button and moving the camera, say downwards to shorten the focus length and depress the shutter
button whilst it hunts for focus, it won't trip the shutter. It is something I haven't noticed before. I shoot Equestrian events on
weekends and noticed that I'm getting a few out of focus shots after the first photo while still tracking the horse. Before It wouldn't
trip the shutter unless it was in focus. I'll have to take a little more notice tomorrow while I'm shooting.

---------- Post added 07-18-15 at 03:00 PM ----------

Ok. Had a little play around outside with both shutter AF and AF back button only. Continues shutter (med hi), continues AF, center point focus 9 zone.
Moving the camera to change the focus point I can hear the camera slow down or pick up the shutter speed again so must be working. Need to learn a little
bit more about my camera me thinks.
07-18-2015, 09:01 AM   #10
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QuoteOriginally posted by vonBaloney Quote
There was a long recent thread about this (I think) -- I believe it is because of using the back button focus. It is a change from older models...
You are correct. The thread had to do specifically with catch-in-focus, but I believe the OP is describing a similar use case.


Steve
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