Search results for 'back focus' - page 2004
Optio M60 'ticking' in Auto Pic mode
Hi all, hoping someone can help? I received a Pentaz Optio M60 for Xmas and for the first few days of use it was great - however, I noticed an annoying ticking noise (like it's trying to get a reading or something?) when the camera was in Auto Picture mode. It doesn't make this noise when in playb...
Posted by JSCOTT on 17/01/2009 - 19:43
Optio M60 'ticking' in Auto Pic mode
It is normal for digital compact cameras to make ticking noises as they try different apertures and focus settings. These are mechanical things and mechanical things make noises. I don't know why your camera is silent in the other modes, though. Anyway, I wouldn't worry about it if the camera see...
Posted by iceblinker on 17/01/2009 - 22:20
K10/K20 focus
I have taken a few close up images with the new K20D with the focus not what as expected. Have many others had poor experiences with their autofocus? To check I downloaded a chart from here - http://www.zimbio.com/Digital+Cameras/articles/839/AF+adjustment+test+chart+help+Pentax+K20D and had...
Posted by jon.dc on 17/01/2009 - 20:21
K10/K20 focus
This is actually not too bad imo. What lens is it :?: Is it wide open :?: I suspect it may be the 18-250 but that doesn't go to f4 at 250mm, does it :?:
Posted by Clarky on 17/01/2009 - 22:04
K10/K20 focus
If you look at the imperial scale down the right, it looks as if it's front focussing a tad because shaarp focus is at about 1/8".
Posted by Mannesty on 17/01/2009 - 22:38
K10/K20 focus
If you look at the imperial scale down the right, it looks as if it's front focussing a tad because shaarp focus is at about 1/8". Only a gnats willy in it Peter would you adjust it or not:?::P
Posted by ttk on 17/01/2009 - 22:45
K10/K20 focus
You should try using a focusing target such as the one in Yvon Bourque blog, or one that has a black line in a white circle. This one has so many lines in it that , even if your focusing sensor is off, it will find something to lock on. It seems to me like it is focusing properly, but you cant mak...
Posted by pentaxian450 on 17/01/2009 - 22:52
K10/K20 focus
You should try using a focusing target such as the one in Yvon Bourque blog, If you look at the imperial scale down the right, it looks as if it's front focusing a tad because sharp focus is at about 1/8". The chart is from Yvon Bourgue (well that's what it says on it), I have just set function 35 (...
Posted by jon.dc on 17/01/2009 - 23:20
K10/K20 focus
These were my before and afters so I think you did quite well! :lol: As you can see, my K10 was back-focussing just a tad :shock:
Posted by hefty1 on 17/01/2009 - 23:58
K10/K20 focus
Yvon has a new set of charts. He designed them after those one, and the new ones are also endorsed by Pentax U.S.A.
Posted by pentaxian450 on 18/01/2009 - 01:06
K10/K20 focus
I think jon is more concerned with the overall sharpness of the lens as opposed to any front or back focusing. As Peter says, its only a tad front focusing. But if its the overall sharpness you are worried about, I don't think you can get it much better than what you have already. Shooting at w...
Posted by Clarky on 18/01/2009 - 01:30
K10/K20 focus
If you look at the imperial scale down the right, it looks as if it's front focussing a tad because sharp focus is at about 1/8". Only a gnats willy in it Peter would you adjust it or not:?::P I wouldn't adjust it based on that test. I don't personally think that the chart used is the best for the p...
Posted by Mannesty on 18/01/2009 - 09:32
K10/K20 focus
hi , I've downloaded the Yvon Bourque charts but after going to the web site i can't find any instructions on how to use them. Help??
Posted by bforbes on 18/01/2009 - 11:01
K10/K20 focus
1: Set the charts on a desk/table at 45 degrees to vertical. 2: Set your camera on a tripod, centre of the lens level with the centre line of the chart at slightly greater than it's minimum focus distance. 3: Set your aperture to max (smallest f number) and focus mode to AFC and centre spot focus ...
Posted by Mannesty on 18/01/2009 - 12:08
K10/K20 focus
You could use anything to test the focus.... better to put a mark on it with tipp-ex so that you can see where you focussed. Don't lay a pen on it like I did below, you may have parallax problems. Look down at it at about 45 deg or less. Focus either manually or AF, but if you do focus manually chec...
Posted by shim on 18/01/2009 - 12:19
K10/K20 focus
Your right on both counts it is the 18-250 and it is wider than f4.... must have been thinking of something else when I typed that Dreaming of the mythical 60-250 perhaps... :wink: Andy
Posted by alfpics on 18/01/2009 - 12:48
K10/K20 focus
You could use anything to test the focus.... Yes you can, but Yvon's chart removes any ambiguity regarding the actual focus point, as there is only one high contrast target.
Posted by Mannesty on 18/01/2009 - 13:35
K10/K20 focus
;-) and Shows how to set it up. Matt
Posted by MattMatic on 18/01/2009 - 13:49
K10/K20 focus
I bit the bullet, and finally got round to adjusting the back-focus problem I had with the K10D. It didn't really show up unless I was shooting wide open or close to it, but after some shots last week, where I didn't get the results I was hoping for, I made the adjustments. The two shots below...
Posted by Galoot on 25/01/2009 - 13:59
K10/K20 focus
thats a big difference. thanks for that, just got a k20 so shows me how much of a difference it can make.:D
Posted by scottthehat on 25/01/2009 - 14:10
