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11-20-2010, 07:18 AM   #1
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Problem with AE-L and K-5

Been trying to do some panoramas with my K-5, and I have problem when you have locked the exposure, getting the * in the viewfinder.

Most of the times the exposure stays the same but it jumpes from times to times. Like yesterday when I was taking a looong panorama I started with a messurement at the sunset 1/100s, iso 80, f/9, locked the exposure. No problem with the following 3 shots. 1/100 for all of them. This is where I start to get to the dark part of the picture. Suddenly the exposure goes down to 1/200, iso 80, f/9, for 3 shots, then it goes up to 1/100 for one shot, down to 1/160 for 2 shots and down to 1/200 for 3 shots.

I still have the * in the viewfinder

Did a few tests with the camera, and it never realy locks the exposure it jumps a EV stop up and down even if I point it to a bright light or put the lenscap on.

Fault in camera or user error. Never had these problems with my K20D, and I have taken alot alot of panos with that camera.

Anyone else experience the same problem or do I need to send the camera back

11-20-2010, 09:13 AM   #2
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You really should be using manual exposure anyway, but send your camera back if it makes you feel better, just don't expect the new one to show a different behaviour.
There is a menu option for automatically correcting exposure if it can't find the right one with the settings in use, perhaps you need to investigate your menu options.

Page 1, Line 7 of Custom Functions. Are you set to 1 or 2?
11-20-2010, 09:38 AM   #3
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A few things you might want to check out.
What lens where you using ?

Could you check the AE-L with AF-Locked setting ?
If its ON it will override whatever original exposure you set with the AE-Lock button when you refocus. Default should be OFF
11-20-2010, 10:44 AM   #4
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why not use manual mode in this case?

11-20-2010, 11:54 AM   #5
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Just checked with my K5.
No problems.
Did you try resetting all menu settings?
11-20-2010, 11:58 AM   #6
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Original Poster
Why would I use manual when there is a dedicated button for it that has worked splendid the last 2.5 years with my k20d.

Stop beeing so defencive

Wheatfield: set to 1, off
11-20-2010, 12:04 PM   #7
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I found the problem, it was Page 1 line 6

I use center focus point
11-23-2010, 11:36 AM   #8
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another way to do this is shoot manual and use green button to auto meter would be just as easy as * button.

04-09-2012, 03:52 AM   #9
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I've also used this method on my previous *istDS/K10 with complete success without having to disable settings to do with AE-L with AF Locked & Link AE to AF Point.

If you use TAv Mode it does exactly what you want - all other modes have this error.

Yes, it was also suggested to me use M Mode BUT, what users here don't seem to realise is that there is a fault with the AE-L feature.

Check out these threads for my earlier comments:

https://www.pentaxforums.com/forums/pentax-k-5-forum/173546-faulty-automatic-...-function.html
https://www.pentaxforums.com/forums/pentax-k-5-forum/181124-k5-segment-meteri...point-set.html
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