Search results for 'back focus' - page 1653
Completely Dejected (auto focus K5)
I always use my HTC desire for photographing newspapers. Either that or I scan them before using them to light the fire.
Posted by dougf8 on 26/12/2011 - 19:09
Completely Dejected (auto focus K5)
Could you put some of your images on here moght help..
Posted by rosesred on 26/12/2011 - 19:10
Completely Dejected (auto focus K5)
It's a known issue with the K-5 and one that hasn't been completely corrected. This makes for an interesting read: http://www.falklumo.com/lumolabs/articles/k5focus/index.html John Haven't got time to read all that now but I read the "Conclusion" and it pretty much says it all. :cry:
Posted by Daydreamjay on 26/12/2011 - 19:24
Completely Dejected (auto focus K5)
Haven't got time to read all that now but I read the "Conclusion" and it pretty much says it all. :cry: Sorry to be the bearer of bad news but I'm sure you could find a work around with some additional lighting. John
Posted by johnwhit on 26/12/2011 - 19:28
Completely Dejected (auto focus K5)
Haven't got time to read all that now but I read the "Conclusion" and it pretty much says it all. :cry: Sorry to be the bearer of bad news but I'm sure you could find a work around with some additional lighting. John I found using the kr with af360 flash the preflash focus assist solves the probl...
Posted by Don on 26/12/2011 - 20:48
Completely Dejected (auto focus K5)
I've read the article and I'm not so sure it isn't techno-nonsense, purposrting to be highly scientific but actually pretty meaningless. If we subtract their 20 suggested error from the results and measure at 0 EV there's hardly any error at all. If we have a light level of 0.5 EV there isn't a pro...
Posted by johnriley on 26/12/2011 - 21:11
Completely Dejected (auto focus K5)
I've read the article and I'm not so sure it isn't techno-nonsense, purposrting to be highly scientific but actually pretty meaningless. If we subtract their 20 suggested error from the results and measure at 0 EV there's hardly any error at all. If we have a light level of 0.5 EV there isn't a pro...
Posted by Sprocketdog23 on 26/12/2011 - 21:57
Completely Dejected (auto focus K5)
If we have a light level of 0.5 EV there isn't a problem. How dark is 0.5 EV? Are we talking 'too dark to be able to walk around without bumping into things'? Dimmish room in the evening? Who routinely uses AF at such low light levels and why? Our eyes can't properly focus the camera when it's ...
Posted by ChrisA on 26/12/2011 - 22:12
Completely Dejected (auto focus K5)
I am not taking that dark! I'm on about in my kitchen with all the lights on!!
Posted by Daydreamjay on 26/12/2011 - 22:15
Completely Dejected (auto focus K5)
Ok, so I've now found . Is it all nominally at 100 ISO?
Posted by ChrisA on 26/12/2011 - 22:28
Completely Dejected (auto focus K5)
You can see from the table that EV 0.5 is pretty dark. It is normally measured referencing ISO100 and an f1.4 lens. The point is if there's no light, the image will be rubbish anyway, if there is light then it won't be EV0.5 It was noted in the article quoted that it would apply equally well t...
Posted by johnriley on 26/12/2011 - 23:04
Completely Dejected (auto focus K5)
I don't know why you are assuming I was focusing in the dark!
Posted by Daydreamjay on 26/12/2011 - 23:42
Completely Dejected (auto focus K5)
k-5 is known for this issue, that what the latest firmware update is mainly for.... first time I've heard of this .... something I might have liked to have encountered before I bought mine :(
Posted by judderman62 on 26/12/2011 - 23:45
Completely Dejected (auto focus K5)
I don't know why you are assuming I was focusing in the dark! "In the dark" is relative...the problem quoted is related to very low light levels.
Posted by johnriley on 26/12/2011 - 23:56
Completely Dejected (auto focus K5)
I don't see what the big hoo-ha is with this focus and tungsten light problem, its not just limited to Pentax Cameras. We have to adjust focus for infra red because its beyond our visible colour spectrum, so surely if a device is calibrated to focus on a particular temperature of light then anyth...
Posted by fatspider on 27/12/2011 - 00:05
Completely Dejected (auto focus K5)
fatspider has a fair point.
Posted by johnriley on 27/12/2011 - 00:10
Completely Dejected (auto focus K5)
Surely a camera that has various white balance settings, including tungsten, should be able to focus correctly in all those lighting conditions/temperatures .... and lets not forget it's not that long ago that this camera cost over £1000 at that price i'd expect it to be able to focus as well as any...
Posted by judderman62 on 27/12/2011 - 00:17
Completely Dejected (auto focus K5)
Isn't this what the focus assist light is for???
Posted by cabstar on 27/12/2011 - 00:50
Completely Dejected (auto focus K5)
For what it's worth, permanently switching to centre-point only solved all my AF problems (which were occasional and minor in the first place).
Posted by MarkTaylor on 27/12/2011 - 00:56
Completely Dejected (auto focus K5)
How dark is 0.5 EV? Are we talking 'too dark to be able to walk around without bumping into things'? Dimmish room in the evening? Subdued lighting in a living room, restaurant, dimmly lit kitchen, many live performances where you either can't use flash or don't want to, inside a dimmly lit church....
Posted by johnwhit on 27/12/2011 - 09:57
