Search results for 'back focus' - page 2064
K-5 not focusing in the cold?
Thanks everybody and a big thank you to Phillip for the kind comment! I only got the lens a couple of days ago and hadn't yet shot with a tripod apart from messing around in the home, so I resolved to go and take some pictures for practice more than anything else. Guess it was my lucky day to catch ...
Posted by simonoffpiste on 29/01/2012 - 17:00
K-5 not focusing in the cold?
I've been out when its been colder than that and had no focus problems, the camera has functioned perfectly right down to the battery finally giving up the ghost (I like my moneys worth) and I'm talking about it driving the Bigma not some piddling little 15mm:lol: that's with brand X third party bat...
Posted by fatspider on 30/01/2012 - 09:30
K-5 not focusing in the cold?
I've been out when its been colder than that and had no focus problems, the camera has functioned perfectly right down to the battery finally giving up the ghost (I like my moneys worth) and I'm talking about it driving the Bigma not some piddling little 15mm:lol: that's with brand X third party bat...
Posted by simonoffpiste on 30/01/2012 - 19:01
K-5 not focusing in the cold?
I'm sorry but I also doubt being on a tripod had much if anything to do with it. I took my northern lights photos using a tripod last year. It was about -13C at the time and the camera was on the tripod taking long exposures (15-20sec) for 90 minutes or so. Again with the DA 17-70. No problem with t...
Posted by Gwyn on 30/01/2012 - 19:17
K-5 not focusing in the cold?
Maybe (just maybe) some of the lubricant in the lens turned to a rubbery "goo" in the cold. If so, focusing by hand would be harder than usual. It might be worth putting the lens in the freezer (in a sealed plastic bag) for a couple hours and verify focus smoothness. If it is then stiff, I would ...
Posted by pentaxian450 on 31/01/2012 - 00:07
K-5 not focusing in the cold?
Hi Yves Thanks for taking the time to reply and suggest a test. Sorry, I should have explained more clearly. It wasn't that the lens didn't focus, it actually focused backwards and forwards, but the problem was although it claimed to have locked on the selected point, when viewing the photo it...
Posted by simonoffpiste on 31/01/2012 - 08:41
K-5 not focusing in the cold?
It sounds more like the lens trying to lock onto a point of low contrast or even the reflection. If it is the reflection then river would not be in focus but the building in the reflection would be. Can you post an image to see if this is the case?
Posted by greynolds999 on 31/01/2012 - 09:55
Dust
Unless the dust spots are very extensive you can clone them out easily enough to save your photos from today. Chris has asked a couple of pertinent questions about the nature of the dust spots, and pointed out when they are most visible. Maybe you could post a couple of examples so we can help y...
Posted by Gwyn on 29/01/2012 - 18:47
Dust
I thought I had dust spots on my sensor, but on closer inspection of my lens (18-55 mk2) I notice a fair amount of dust on them and there's none on the Dust Alert screen. Looks like the dust is on the 2nd element from the back of the lens. Much the same problem as Gwyn describes above. What's the...
Posted by PeterMac on 30/01/2012 - 16:49
K100D wont save date
Hi Wonder of anyone has experienced this before. I've had the K100D for a year now without any problems. Just recently when I turn on, the screen comes up with the screen for setting the date/time. Never happened before. I set the date/time but when turned off and on again it goes back to th...
Posted by Agentmarke on 09/02/2012 - 20:26
K100D wont save date
I don't know if DSLR's have internal batteries similar to the battery that sits on your computer's mobo. Some makes certainly do but not Pentax. How long an interval between turning off and back on again? The camera manual suggests that the time and date may get reset when you insert fresh batter...
Posted by JAK on 09/02/2012 - 23:16
K100D wont save date
I don't know if DSLR's have internal batteries similar to the battery that sits on your computer's mobo. Some makes certainly do but not Pentax. How long an interval between turning off and back on again? The camera manual suggests that the time and date may get reset when you insert fresh batter...
Posted by Agentmarke on 09/02/2012 - 23:22
Broken LCD k10d
I believe that www.johnsons-photopia.co.uk are at focus on imaging 2012, so you could take you k10d with you if your going to focus on imaging 2012(NEC BIRMINGHAM 4 - 7 MARCH.)
Posted by rosesred on 11/02/2012 - 16:14
Small lever on back of PK mount?
Am I correct in assuming that the small lever on the PK mount is for aperture control? Ffordes have a set of Pentax extension tubes for sale: http://www.ffordes.com/product/11111806425381 I know Pentax made two types of these, auto with aperture control for 'A' lenses and manual without ape...
Posted by milamber on 13/02/2012 - 09:36
Small lever on back of PK mount?
If you operate the lever you'll see how it controls the diaphragm, but only if it's set to an aperture less than wide open of course! It's thew way to test second hand lenses to see if the diaphragm is at all sticky.
Posted by johnriley on 13/02/2012 - 09:38
Small lever on back of PK mount?
Thanks John The Ffordes set in the photo must be fully manual then, not auto?
Posted by milamber on 13/02/2012 - 10:01
Small lever on back of PK mount?
Yes, beautifully engineered but not the most convenient as no aperture control.
Posted by johnriley on 13/02/2012 - 10:27
Small lever on back of PK mount?
Thanks again At the moment I only have M and DA lenses anyway, but might get some 'A' in future. Pity as they look better made (and cooler!) than the 3rd party tubes.
Posted by milamber on 13/02/2012 - 10:38
HELP! (with SilkyPix)
Hi everyone, I just need pointing in the right direction on something regarding the Pentax Digital Camera Utility 4 (Silkypix). I always shoot in RAW (DNG) only and save my pics from Silkypix to a jpeg, using the 'Save As' option. However, I have noticed than when I do this, the saved jpeg is not ...
Posted by davidstorm on 15/02/2012 - 20:25
Help - Cleaning slides
Hello all I need some advice, I have a number of slides taken back in the 80s and 90s which I am trying to scan. Unfortunately the years have not been all that kind to them and most are dirty the rest are filthy. What should I use to clean them? Thanks in advance. Paul
Posted by Boyo2406 on 18/02/2012 - 23:07
