Search results for 'back focus' - page 1511
Focus adustment on a K10D
Try here David
Posted by bforbes on 07/04/2010 - 14:23
Focus adustment on a K10D
I did this not too long ago when I got my Sigma 30mm f1.4. At 1.4 the images just looked awful so I did a focus test on a ruler, and sure enough I think I set it to 110 as well. All my lenses look so much better now for this.
Posted by whelmed on 07/04/2010 - 14:28
Focus adustment on a K10D
David, If you already have the 'hack', then the instructions at the link Barrie provided are spot on - that's how it worked for me. You only need to do that once, and the rest of it is in your K10, using the standard English language menu. Once installed, I drew up a quick grid on paper for e...
Posted by i-Berg on 08/04/2010 - 09:59
Focus adustment on a K10D
Note that this only affects AF, not manual focus - the latter is the domain of the shims that Lance B has comprehensively described elsewhere on PU Thanks - I have been wondering about this for a while. Cheers, /Ian
Posted by mph555l on 08/04/2010 - 11:51
Focus adustment on a K10D
David, Once installed, I drew up a quick grid on paper for each lens, running from -120 um through zero to +120 um, and recorded the image number next to each setting (using a tripod, AF-S, Av & max aperture, 2 second shutter delay, SR OFF). I lined up 8 different clothes pegs on the line out...
Posted by Mike-P on 08/04/2010 - 12:50
Focus adustment on a K10D
I used three matchboxes sitting on brick paving - worked a treat! The grid was only for my notes, so I knew which image used which setting - apologies if that was not clear... :)
Posted by i-Berg on 08/04/2010 - 13:02
Focus adustment on a K10D
I suppose I should also add it was 7 pegs .. not 8 Bit difficult focusing on the middle one otherwise :roll:
Posted by Mike-P on 08/04/2010 - 13:48
Posted by i-Berg on 08/04/2010 - 14:00
Focus adustment on a K10D
Bit of a lurker here, but just wanted to say "thanks" to the OP and others - I'd read of focus adjustment before but not really understood and had been wary of trying it. What an improvement. Thanks again.
Posted by DarkM on 08/04/2010 - 19:41
Focus adustment on a K10D
The more i read the more Im am going to try this with my Bigma........ Paul:P
Posted by paulgee20 on 09/04/2010 - 17:49
Focus adustment on a K10D
Interesting thread Mike.I'd like to try the hack,but I have know idea how to go about it.Could you explain please. Jeff
Posted by jeffb on 14/04/2010 - 23:09
Focus adustment on a K10D
Try Barries link a few posts back Jeff.
Posted by Mike-P on 15/04/2010 - 06:49
Focus adustment on a K10D
The more i read the more Im am going to try this with my Bigma........ Paul:P focus adjustments is not recomended for zoom lenses so i believe i have seen some where,
Posted by pentaxanne on 15/04/2010 - 08:15
Focus adustment on a K10D
Focus adjustment works fine for zoom lenses also. What you have seen, I believe, is a warning that zoom lenses don't stay in focus over the zoom range. The morale being: Focus at the focal length you will be shooting the picture.
Posted by terje-l on 15/04/2010 - 09:42
Focus adustment on a K10D
Focus adjustment works fine for zoom lenses also. What you have seen, I believe, is a warning that zoom lenses don't stay in focus over the zoom range. The morale being: Focus at the focal length you will be shooting the picture. Spot on.
Posted by johnriley on 15/04/2010 - 10:13
Focus adustment on a K10D
The morale being: Focus at the focal length you will be shooting the picture. And under the correct lighting, the AF will behave differently outside in full sun light then inside under tungsten lights. Only the K7 does not suffer from this.
Posted by Anvh on 15/04/2010 - 11:55
Focus adustment on a K10D
And under the correct lighting, the AF will behave differently outside in full sun light then inside under tungsten lights. Stefan, Would you please enlighten me on how THAT works?
Posted by i-Berg on 15/04/2010 - 12:04
Focus adustment on a K10D
I would also like to have an explanation as to - why AF differs in daylight vs. tungsten - how much is the difference
Posted by terje-l on 16/04/2010 - 07:54
Focus adustment on a K10D
I would also like to have an explanation as to - why AF differs in daylight vs. tungsten - how much is the difference I have never seen any difference between the sharpness of my images focused by any type of light. I routinely do studio portraits which although lit by flash are focused under tung...
Posted by johnriley on 16/04/2010 - 08:26
Focus adustment on a K10D
Thanks, John. My question was meant as a response to Stefan's statement above, because I thought the difference would be negligible, if any.
Posted by terje-l on 16/04/2010 - 08:33
