Search results for 'back focus' - page 1512
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. I've no idea how much it differs, at least Pentax and others find it enough to make a special sensor to adjust the AF sensor to the light. The way it works ...
Posted by Anvh on 16/04/2010 - 08:54
Focus adustment on a K10D
Thanks Stefan - it sounds then that we are talking very small differences, that may mean the focus shifts only within the 'depth of field' as it exists for a particular aperture setting? Or have I got that wrong?
Posted by i-Berg on 16/04/2010 - 09:20
Focus adustment on a K10D
Thanks Stefan - it sounds then that we are talking very small differences, that may mean the focus shifts only within the 'depth of field' as it exists for a particular aperture setting? Or have I got that wrong? No because depth of field is coupled with your focus, so if the AF front focus the dep...
Posted by Anvh on 16/04/2010 - 10:27
Focus adustment on a K10D
The difference may be small, but at close distance/wide aperture it can be significant, especially if you are trying to adjust your AF in-camera with a focus chart.
Posted by pschlute on 16/04/2010 - 10:28
Cheap K7 battery grip
mine is made by meike and its identical looking to the original, doesnt state its weather sealed. but its great for the money and the one on my d300(made by meike) has never let me down and has been in the rain with no problems. the k7 grip is not the most comftable to hold i find, especially if yo...
Posted by pentaxanne on 23/03/2010 - 17:43
KM Sensor / CCD mark...??
Hi all, I've recently taken quite a few shots with my KM on a trip away and on reviewing them back home I seem to have a mark on all of them..... Its not the lens as it appears when I used either my 18-55 or 75-300 lens so I can only assume its the sensor/CCD glass ? It doesn't appear to be...
Posted by theeggman on 25/03/2010 - 16:20
KM Sensor / CCD mark...??
to get a better look at it, point your camera at the sky or something else bright but uniform, stop the lens right down and take a shot. I often like to set the focus to minimum and use the ceiling. Doesn't matter if the exposure is a bit long, the thing you're trying to image is on the sensor so ca...
Posted by Mongoose on 25/03/2010 - 16:28
KM Sensor / CCD mark...??
i had the same on my k-m too, dont use a blower i did and ended up blowing dust up into the viewfinder, lucky enough was within 28 days of buying and i took it back. i set both my caeras now to shake on startup
Posted by Glover on 25/03/2010 - 21:30
Cable switches or remotes
That Remote control F is so tiny I'm scared of loosing it , sadly I can't see how to get a lanyard onto it to stop me putting it down and not finding it again . I used a lanyard from (I think) a USB drive. It has a thin loop attached by a spring clip to a thicker neck strap. After taking the remote ...
Posted by NigelMe on 27/03/2010 - 15:46
Cable switches or remotes
I bought a cheap cable remote off E-bay. After 2 or 3 weeks it packed up. I got a Stanley knife, cut off the moldings from the mini jack plug and re soldered the broken wires back. wrapped in loads of black insulting tape. works fine now
Posted by Smeggypants on 29/03/2010 - 05:23
smc DA* 16-50mm Focus Issue
My 16-50 is playing up. It does not seem to AF when the camera (K7) is first switched. After some time (maybe 10 minutes), it starts working normally. I have cleaned the contacts but this has made no difference. Other lenses (including SDM) work as expected. Anyone else had this kind of problem? Any...
Posted by NigelMe on 27/03/2010 - 08:35
smc DA* 16-50mm Focus Issue
2 Year if bought from a pro dealer. From what I understand there are also laws in the UK that a product must "satisfy", with that I mean a DA* lens is a high quality product so with normal use it shouldn't break down after 3 years, at least that's your expectation. :wink:
Posted by Anvh on 27/03/2010 - 09:22
smc DA* 16-50mm Focus Issue
In the UK there is the possibility of claiming for faulty goods up to six years. Should a lens last 6 years? I would expect it to last a lot longer than that. However, in the first instance that 2 year Pro Dealer Warranty looks like the first step.
Posted by johnriley on 27/03/2010 - 10:02
smc DA* 16-50mm Focus Issue
Thanks all. Bristol Cameras do not appear to be a Pro Dealer so I guess 1 year warranty applies. I will make sure Pentax are aware of how disappointed I am! :(
Posted by NigelMe on 27/03/2010 - 10:18
smc DA* 16-50mm Focus Issue
You don't have to give up there. Visit your local Citizen's Advice Bureau and they will be able to tell you how to proceed. You should get an amicable resolution to this.
Posted by johnriley on 27/03/2010 - 10:26
smc DA* 16-50mm Focus Issue
My 16-50 is playing up. It does not seem to AF when the camera (K7) is first switched. After some time (maybe 10 minutes), it starts working normally.... This sounds just like the problem I had with my first DA*16-50 and I think my 3rd is going the same way. The first one, on a K10D was very sti...
Posted by GlynM on 27/03/2010 - 10:27
smc DA* 16-50mm Focus Issue
If you bought it with a credit card then check with them, mine gives an extra years warranty on anything I buy which is why I always use that one for large purchases.
Posted by Mike-P on 27/03/2010 - 11:36
smc DA* 16-50mm Focus Issue
yikes i just bought an sdm lens!!!!!
Posted by royd63uk on 27/03/2010 - 12:01
smc DA* 16-50mm Focus Issue
yikes i just bought an sdm lens!!!!! As long as it wasn't the 16-50mm or 60-250mm you will be fine. It would be handy if Pentax would allow us to choose SDM or Screw drive via the menus .. at least we could carry on if SDM fails. (apart from the 17-70mm and 55mm of course)
Posted by Mike-P on 27/03/2010 - 12:23
smc DA* 16-50mm Focus Issue
As long as it wasn't the 16-50mm or 60-250mm you will be fine. It would be handy if Pentax would allow us to choose SDM or Screw drive via the menus .. at least we could carry on if SDM fails. (apart from the 17-70mm and 55mm of course) Also the DA*60-250, i knew the DA*16-50 had major problems i...
Posted by Anvh on 27/03/2010 - 12:57
