Search results for 'back focus' - page 1639
Low light 'catch in focus'
Why not? All that's happening is that the AF system is working to confirm a focus point. I'd give it a try and see what happens.
Posted by johnriley on 11/10/2011 - 20:49
Low light 'catch in focus'
yes the catch in focus does work in low light but slows your working down... Never worked with focus light so can't tell you..
Posted by cabstar on 11/10/2011 - 21:56
Low light 'catch in focus'
Sometimes it does, sometimes it doesn't - It's f stop dependent too if you have a -k, -m etc lens (I can't get much with it above f/5.6 in low light). Can't rely on it.
Posted by nass on 11/10/2011 - 22:05
Low light 'catch in focus'
Thanks everyone. It seems a bit hit and miss in low light. Regards Chris
Posted by chrissinkpen on 11/10/2011 - 22:53
Low light 'catch in focus'
How does the autofocus actually work? I've read on other systems (buying my son a Fuji bridge camera) that it has something to do with contrast. That being the case, then maybe when light levels are too low there just isn't enough contrast for it to "see" when an object is in focus. Or am I way ...
Posted by Father Ted on 12/10/2011 - 12:24
K-X or K-R
Bill raises a good point there, most of the camera mags are very Cannon and Nikon focused....more fool them I say! Isn't that a reflection of the market in general though, a consumer photography magazine that was to write about Pentax wouldn't have much to write about on a month by month basis would...
Posted by cabstar on 14/10/2011 - 16:28
From K20D to K5
I am thinking to purchase a K5 to replace my K20D. At the same time I do have a few worries. Let's start with why I would like to upgrade to K5, I think it will pefrom much better at low light high iso, I think it will focus alot faster and better in low light. That is about it. I never use my k2...
Posted by m42geo on 14/10/2011 - 18:00
From K20D to K5
K20D can tell me what you think about the new meun and control on the K5? Much better to navigate, particularly like the way it goes back to the last viewed page when one presses the menu button. Also like the info screens as well, a big step forward. It is smaller, but it feels sort of right, I ...
Posted by davex on 14/10/2011 - 18:27
From K20D to K5
And finally I found that the K20D sometimes freeze either the front or the back dail and I have to switch the camera off and back on again in order to change either the shutter speed and apeture, does this problem exist on the K5? I presume you have a grip on the K20D?
Posted by Mike-P on 14/10/2011 - 18:37
From K20D to K5
I've had a K10D for four years, got a K-5 about six weeks ago. It's a little smaller, and a little lighter. After only about 5 minutes, I had completely adapted to the different feel, and after 5 minutes more, preferred it. My hands aren't all that large, so a smaller camera suits me very well ...
Posted by ChrisA on 14/10/2011 - 19:29
From K20D to K5
I used to have a Samsung GX20, which was a clone of the K20D, before changing to a K7 and now K5. I prefer the fit of a K5 in my hand, it just feels so right. But handling is very personal and I do have smallish hands. I think if I were you I would try and find somewhere I can handle the camera befo...
Posted by mera on 14/10/2011 - 19:29
How much focus adjustment?
Before I start fiddling about, please could anyone suggest a rough amount of adjustment to correct this much back focus: It's the 55-300 on the K-5, 300mm at a range of about 5 feet. Thanks in advance!
Posted by ChrisA on 17/10/2011 - 13:52
How much focus adjustment?
What f/stop did you use Chris?
Posted by aminstar on 17/10/2011 - 14:01
How much focus adjustment?
What f/stop did you use Chris? F5.8. It doesn't get any wider open at the long end. Edit: PS, I forgot about the troubleshooter forum, sorry, I probably should have posted this there. :oops:
Posted by ChrisA on 17/10/2011 - 14:03
How much focus adjustment?
The difference is really a little notch. What are the slider marks on the K5? It seems to me that you need to bring it to the 6mm Mark. If the marks go all the way to + and - 20 I would be tempted to go for 5 to start with
Posted by aminstar on 17/10/2011 - 14:12
How much focus adjustment?
I'd never heard about front and back focus until I moved to DSLR, certainly wasn't taught it back in my youth with film cameras but then I never could afford above 135mm for a lens! I have this lens and at 300mm at maximum aperture (the equivalent of 450mm in 35mm) I expect shallow depth of focus...
Posted by wvbarnes on 17/10/2011 - 15:30
How much focus adjustment?
It may be that people look much more closely at their images than was ever done with film. There were film focusing and alignment problems, usually to do with film flatness, but they were not worried about too much. It may also be true that modern zoom lenses are so complex that there is a certai...
Posted by johnriley on 17/10/2011 - 15:56
How much focus adjustment?
I have this lens and at 300mm at maximum aperture (the equivalent of 450mm in 35mm) I expect shallow depth of focus. Is there a FAQ about all this modern angst as I'd really like to understand why so may people are fretting about it! If the camera thinks it's focused at distance x, but actually it's...
Posted by ChrisA on 17/10/2011 - 16:01
How much focus adjustment?
Hi John, that's what I thought. I sold hundreds of lenses in my retail career back in the late seventies and do not remember ever having to replace a lens other than second hand ones. Cloth shutters failing yes but lenses not focussing correctly. Pretty sure we always blamed the user! I note I...
Posted by wvbarnes on 17/10/2011 - 16:03
How much focus adjustment?
So far. I haven't adjusted any lenses and my images are sharp when and where required. Maybe the situation is over-fretted about, maybe I've been lucky, maybe my images are lamentably bad and I've not noticed yet. On the other hand, maybe the lenses I haven't liked have actually been badly adjust...
Posted by johnriley on 17/10/2011 - 16:10
