Search results for 'back focus' - page 1513
smc DA* 16-50mm Focus Issue
As long as it wasn't the 16-50mm or 60-250mm you will be fine. :?
Posted by royd63uk on 27/03/2010 - 14:22
smc DA* 16-50mm Focus Issue
As long as it wasn't the 16-50mm or 60-250mm you will be fine. :? :lol: :wink:
Posted by Mike-P on 27/03/2010 - 14:33
smc DA* 16-50mm Focus Issue
you are devil....:lol:
Posted by royd63uk on 27/03/2010 - 16:30
smc DA* 16-50mm Focus Issue
Very slightly off topic, I'll just chip in and say that I had both the 16-50 and the 60-250 (now Roy's lens) and neither SDM has missed a beat. So it's not something you should overly concerned about. And Roy you do have plenty of warranty left on yours :wink:
Posted by Greytop on 27/03/2010 - 17:18
smc DA* 16-50mm Focus Issue
:lol::lol::lol::lol:
Posted by royd63uk on 27/03/2010 - 18:04
smc DA* 16-50mm Focus Issue
Anyone else had this kind of problem? Anyone know how long the (UK) warranty period is on DA* lenses? Yes, I had two from early batches that suffered focussing problems after varying lengths of time. My third one is fine. Fortunately I bought from SRS and the two duffers were replaced without any pr...
Posted by Mannesty on 28/03/2010 - 08:51
smc DA* 16-50mm Focus Issue
Claims can be made up to 6 years but after the warranty period, the onus is on you to prove that the item was inherently defective from new. Which shouldn't be a problem, since you can get info about that problem on hundreds of post on the internet.
Posted by pentaxian450 on 28/03/2010 - 20:36
smc DA* 16-50mm Focus Issue
yikes i just bought an sdm lens!!!!! Whilst accepting that some people have had proplems with SDM. I have a DA*16-50, DA*50-135, DA*55, DA*60-250, DA*200, DA*300 and have had no problems with the SDM on any of them using a K10D, K20D and K-7. Each of these lenses (except the 300) was bought as so...
Posted by Bob and his Pentax on 29/03/2010 - 11:47
smc DA* 16-50mm Focus Issue
We did have a non-scientific straw poll about this a while back. Sadly, I am one of the people for whom the SDM failed and as I have only one SDM lens that makes it a 100% failure rate. :( K.
Posted by womble on 29/03/2010 - 12:21
smc DA* 16-50mm Focus Issue
I had my AF Motors replaced on both my 16-50 and 50-135. My 16-50 was acting up and the new motor works perfectly now. I was told that it is the newer version AF motor. I had the 50-135 AF replaced just in case.
Posted by benjikan on 24/07/2010 - 23:31
smc DA* 16-50mm Focus Issue
I have very occasional (and I mean very occasional) AF issues with the 50-135mm, where is will not focus in either AF or MF. However by switching the lens with another and switching back, it works. It is a fault, but not to a point to affect me at the moment.
Posted by Offertonhatter on 25/07/2010 - 00:01
K10D Digitital Preview
When I compose the picture and focus and then move the power switch to digital preview, nothing happens. I can get a digital preview if I go to AWB in the function mode. How do you get a digital preview? Thanks, Joe
Posted by JoeColacino on 27/03/2010 - 14:54
K10D Digitital Preview
If you are referring to the switch around the shutter button, it stops down the aperture to whatever the camera is going to use to give you an idea of depth of field. In other words, what is going to be in focus. If you can see nothing happening it may be because the lens is going to be wide open. ...
Posted by gartmore on 27/03/2010 - 15:25
shutter counts
10,876 in 2 years and 11 months is about 10 a day, with K10D. Most in one day was 1092, at Cosford Airshow last year - Vulcan XH558 was there so why not? Most I ever took in a day before that was back in the '90s on 35mm with my A3. 6 rolls of 36, over 200 pics! That was at Mildenhall Airshow,...
Posted by dogdirt on 28/03/2010 - 17:18
K20 D - Best Zoom lens to 300mm
I had three sigma 100-300 zooms, two with metal mounts and one with a plastic mount. I was wondering why I wasnt getting really sharp photos. I assumed that it was because of the high zoom, as I take mostly surf photos. Note that I havent had the K20d for very long. The *ist DS I had performed quite...
Posted by surfseen on 28/03/2010 - 05:22
K20 D - Best Zoom lens to 300mm
Hello Andrew. You didn;t say what the lenses are, 1) There should be no exposure issues with any lens fitted to a DSLR. Unless the lenses are full manual. In which case you can "determine" the correct exposure. 2) Newer Sigma lenses should be no better at AF than older AF Sigma's. Some diff...
Posted by K10D on 28/03/2010 - 05:48
K20 D - Best Zoom lens to 300mm
From what you say I assume you are mainly using these lenses at the long end 300mm mark. You will struggle to get good sharp results from any of the lenses you have mentioned, the Sigma 100-300mm are just cheap budget lenses and anything taken over 200mm will doubtful look sharp, Unless you get ...
Posted by Clarky on 28/03/2010 - 06:52
K20 D - Best Zoom lens to 300mm
The simplest and arguably best solution is the SMC Pentax-DA 55-300mm, or the lighter made but optically identical DAL version. These are excellent performers but not overly expensive. Modern zooms designed for digital cameras will pereform better than many film-era lenses, but don't dismiss the ...
Posted by johnriley on 28/03/2010 - 10:34
K20 D - Best Zoom lens to 300mm
One question I'm surprised no one has asked yet is, have you done any tests with these lenses to determine if they are simply back or front focusing? if that is all the problem is, the K20D can be adhusted to compensate. Have you also considered it may be another problem, you say your trying to m...
Posted by fatspider on 28/03/2010 - 11:18
K20 D - Best Zoom lens to 300mm
Why not set up a static Lens Test Target, at say 10 metres and see if the lenses which you currently have will focus correctly and give sharp pictures. Budget zooms often need to be used at f8 or f11 to get the best sharpness out of them. F8 and F11 will also give you some depth of field. To get y...
Posted by grahamwalton on 28/03/2010 - 22:31
