SusannaB
newbie
Reged: 21/10/2007
Posts: 5
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I am still using this camera in one or other of its many "auto" or "scene" modes, and I absolutely love it, but find that very often, the shutter release appears locked, even though the camera is on.
I've combed the instruction book, but can't find anything covering this.
My question is: Would this be just to stop me taking a very under- or over-exposed pic or is there a fault???
<---------sure I'm being a bit dim here. 
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nimbus
enthusiast
Reged: 29/08/2007
Posts: 313
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It is probably because the lens has not found a point of focus. The reason being that the camera will not allow you to take a shot that it 'thinks' is out of focus. In auto mode the camera will set an appropriate exposure setting, by increasing the iso if necessary.
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GDN
old hand
Reged: 05/02/2008
Posts: 719
Loc: Surrey
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Check through the viewfinder. On my K10D if the hexagon at the bottom centre of the viewfinder is flashing it is indicating that the camera has not focused. If it is not focused it will not let you take a photo, as nimbus correctly points out.
You can either change this using manual focus or changing the setting through the control panel.
I assume that it will be the same on the K100D. 
Hope this helps.
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Zou
Pooh-Bah
Reged: 05/02/2007
Posts: 2087
Loc: Edinburgh
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If I forget to switch the er, switch, to MF when I stick on an older lens, it often lets me take one picture, but then no more until I switch the switch.
Odd.
But yeah, try what they already said.
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Zou's Flickr Page
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El Sid
Going potty
Reged: 14/04/2003
Posts: 9296
Loc: Sussex-by-the-Sea
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In the Auto or 'scene' modes of most cameras you will be prevented from taking a picture if the system decides that there is:
A chance of over-exposure
A chance of under-exposure
The possibility of camera shake (not all modes though)
A failure to focus.
The first two are usually indicated by either the aperture or shutter speed values flashing (or in extreme cases both). Whichever flashes indicates the range that has been exceeded.
Camera shake is normally indicated by the shutter speed flashing even though it doesn't seem excessively slow (the minimum allowable speed can vary according to lens focal length BTW).
A failure to focus is normally indicated by a blinking focus confirmation light and frequently the lens will run through it's entire focus range a couple of times before it gives up...
Chances are it's one of the above that causes the locking up.
If the problem becomes more persistent then switch to one of the advanced PASM modes and see if it continues. The PASM modes will allow the shutter to fire even if the exposure is likely to be 'wrong' or the shutter speed too slow - though the shutter won't release if focus is not achieved unless the camera is set to continuous or manual focus. If the problem still persists under these conditions there is an outside chance that the camera has developed a fault but at this stage I strongly doubt it's more then the auto-modes doing their job and preventing errors...
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Nigel
Completely BSRIPN 
ElSid Gallery
A camera in the hand is better than one in the cupboard........
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SusannaB
newbie
Reged: 21/10/2007
Posts: 5
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Thanks all - I shall have a l-o-n-g practice session tomorrow!
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Malcolm_Stewart
Pooh-Bah
Reged: 11/07/2005
Posts: 2385
Loc: Milton Keynes, UK
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Quote:
In the Auto or 'scene' modes of most cameras you will be prevented from taking a picture if the system decides that there is:
A chance of over-exposure
A chance of under-exposure
The possibility of camera shake (not all modes though)
A failure to focus.
...
So how's a woman going to learn by her mistakes?
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Malcolm Stewart
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