Search results for 'back focus' - page 1762
K5 2S moire-Just for the record
Received a Pentax K5 2S yesterday: Planned a two-day session to test for the potential Moire (yesterday and today), Checked all apertures on 4 DA* lenses at all speeds and iso 80 - 4000 mixed lighting including back lighting Subjects chickens (plumage) - None we...
Posted by Daronl on 07/08/2013 - 13:58
K5 2S moire-Just for the record
When I did my comparison tests (K5II vs 's') there was one small item that was completely swamped in moire effect on the 's' image, and the 'non-s' version had none of it at all - a clear difference on a small item with a ribbed & repeated texture. This was the effect of the aa filter removal. I...
Posted by McGregNi on 17/09/2013 - 22:10
K5 2S moire-Just for the record
Looking at David's Genoa image, what I can say firstly is that it does not seem to have been cleaned up at all in terms of colour noise reduction. Most areas contain significant colour noise patterns, including the OOF zones on the dome and patterned wall to the left, which are swamped in blue & yel...
Posted by davidstorm on 18/09/2013 - 00:33
K5 2S moire-Just for the record
It depends on where the jaggies came from John. The anti-alias filters were put on the cameras so that it wasn't coming from there. Remove it and there is a big risk that it will return, making it unsuitable for professional architectural use. which is all I said in the first place, but people s...
Posted by Algernon on 18/09/2013 - 10:04
K5 2S moire-Just for the record
It shouldn't be about anyone defending their purchase, nor is it about anyone's skills and or creativity - it is just about what is visible for inspection on an image shot with the camera. David's photo has been put up as an example, and I wanted to focus on that. David, its a good shot well capture...
Posted by McGregNi on 18/09/2013 - 16:36
Advice re sensor cleaning function
Just had my K30 sensor cleaned I parted with hard earned cash as I have learned from experience that I am a ham fisted oaf.:cry: I did that in 2009 with my K10D. Paid up £25, the guy popped out the back with my camera and 2 mins later reappeared with it done. An hourly rate of approx £750..... :shoc...
Posted by Russ on 09/08/2013 - 13:12
Pentax K-50 Official Sample JPG's
What is the use of showing these examples when if you ask a dealer for PENTAX especially here in Philippines the answer is that "We do not stock PENTAX" -- I have been searching many dealers in all the shopping Malls here in CEBU, cannot find ONE stocking Pentax ! Oh well, back to my 'Old' K10D whe...
Posted by Peter Elgar on 16/08/2013 - 03:04
K10D Focus Adjustment
I have an increasing nagging feeling that my trusty if somewhat aged K10D is back-focussing (not sure I have the terms the right way around, I mean it's focussing further away than the subject actually is). I seem to recall there used to be a way to get the K10D into an advanced debug mode which ...
Posted by Mongoose on 14/08/2013 - 12:18
K10D Focus Adjustment
I need this info too. Mine won't focus to infinity with zoom lenses when they are at their minimum ( 28 - 80mm & 70 - 300mm lenses).
Posted by Father Ted on 14/08/2013 - 13:17
K10D Focus Adjustment
I need this info too. Mine won't focus to infinity with zoom lenses when they are at their minimum ( 28 - 80mm & 70 - 300mm lenses). it hadn't occured to me until now that this might be the same issue, but mine also jams against the stop trying to focus past infinity on my 16-45 at 16.
Posted by Mongoose on 14/08/2013 - 13:38
K10D Focus Adjustment
There used to be an advanced debug mode written I think by a Russian. [The K10 didn't have it built in as per the K5 and later]. I used it on my K10 and it worked OK. I deleted it from my computer when I sold the K10. Keep asking, I'm sure someone will still have the information available. OR try to...
Posted by vic cross on 14/08/2013 - 14:03
K10D Focus Adjustment
Is this the answer? http://www.dpreview.com/forums/post/32676684
Posted by Father Ted on 14/08/2013 - 14:19
K10D Focus Adjustment
Another site http://photographybanzai.com/2010/11/06/fixing-k10d-back-focusing/ But I would like some feedback if possible before I start tampering with my camera.
Posted by Father Ted on 14/08/2013 - 14:51
K10D Focus Adjustment
Is this the answer? http://www.dpreview.com/forums/post/32676684 Yup that's the method. I used to leave my K10D in debug mode so I could change AF setting when changing lenses. It was a PITA. I'd never buy a DSLR without AF adjustment memory slots of individual lenses again
Posted by Smeggypants on 14/08/2013 - 19:25
K10D Focus Adjustment
There you go. I knew someone would still have the info. A bit more complicated than the modern built in prog. but it works. CHEERS Vic.
Posted by vic cross on 15/08/2013 - 08:13
K10D Focus Adjustment
perfect, thanks guys I'll have a play later on, perhaps I can stave off the urge to buy a K5-II for a few more months!
Posted by Mongoose on 15/08/2013 - 08:33
K10D Focus Adjustment
If that's the one, then I might have a go tonight, then I can test it when we are away next week.
Posted by Father Ted on 15/08/2013 - 08:41
K10D Focus Adjustment
If that's the one, then I might have a go tonight, then I can test it when we are away next week. Make sure you carry out all tests in good natural light and remember that the adjustment will affect all of your lenses. Looking at your signature the 50mm F1.7 tested wide open is where you will notice...
Posted by stevejcoe on 15/08/2013 - 11:55
K10D Focus Adjustment
I don't know if it's an artifact of the fact that I'm more likely to be at wide aperture, but the issue seems worse on my K10D in poor tungsten lighting. I think it might be of value to do the experiment under poor lighting as well, and if the results are significantly different then keep a note ...
Posted by Mongoose on 15/08/2013 - 12:10
K10D Focus Adjustment
I don't know if it's an artifact of the fact that I'm more likely to be at wide aperture, but the issue seems worse on my K10D in poor tungsten lighting. I think it might be of value to do the experiment under poor lighting as well, and if the results are significantly different then keep a note ...
Posted by stevejcoe on 15/08/2013 - 12:52
