Search results for 'back focus' - page 2178
Question about PixelShift
I experimented with a pixel shift image in RAW with movement control, and the four images were automatically combined in camera to produce a single RAW file of almost 200 Mb! I guess that you then process this image as normal. Compared to a normal exposure of the same view there was additional sharp...
Posted by RobL on 10/05/2016 - 11:53
Question about PixelShift
I experimented with a pixel shift image in RAW with movement control, and the four images were automatically combined in camera to produce a single RAW file of almost 200 Mb! I guess that you then process this image as normal. Compared to a normal exposure of the same view there was additional sharp...
Posted by DaveKitson on 10/05/2016 - 13:51
Question about PixelShift
If one only got one of the four images that make up the raw file surely it would be either all red, all green or all blue. But it isn't. The camera processes the data and combines it to produce the jpeg so presumably the raw file is combined too. (Presumed being the operative word!) Maybe PDCU can...
Posted by JAK on 10/05/2016 - 14:34
Question about PixelShift
I've just converted my pixel-shift test image using Adobe's latest DNG converter (v.9.5.1.) This is a 100% crop (actual pixel crop) So it is clearly each image merged but no other processing done on it - seems ACR doesn't do it. This is the in camera jpeg version at actual pixel crop. ...
Posted by JAK on 10/05/2016 - 15:43
Info regarding Sigma lenses on a K1
Just received back my Sigma 150-500 from LCE with a shiny new mount, designed with a bevel to keep the outer edge of the mount away from the camera body. Not bad service and no charge.
Posted by RobL on 23/06/2016 - 16:27
Info regarding Sigma lenses on a K1
I delivered my Sigma 70-200 f2.8 to the Service Centre at Wewyn Garden City last Thursday around 4.00pm for the mount mod as I was not too far away at Cambridge. It's just arrived back this morning (Tuesday), in Conwy, a journey of 230 miles, at around 9.30am. I wasn't the original owner and I...
Posted by merryhampton on 13/09/2016 - 10:11
Info regarding Sigma lenses on a K1
I've had my 150 - 500 sorted back in July and the 70 - 200 sorted today, they couldn't do the later in July as there are two types of mount, one with 3 securing screws and one with 4. Mine was a 3 and the mounts weren't in stock at that time. Both lenses were done while I waited and the firmwa...
Posted by Chrism8 on 14/09/2016 - 16:48
Info regarding Sigma lenses on a K1
Well I'm happy. Sent the lens back with the Sigma technician telling me over the phone it was £133 for the repair plus the free mount upgrade. Had an email today saying it's just a firmware fault so with the mount change, firmware update, full check etc and delivery back it's £37.99 Result!!
Posted by cardiffgareth on 16/09/2016 - 16:58
K1 and the Sigma Lens interference ("scratch")
I have used my two Sigma 1.4 DG primes ( 30 and 85) on the K1 without a scratch or blemish developing but I can see that even with the camera and the lenses meeting the manufacturing tolerances there is a only a very minute clearance between the K1 and the Lens mounts ( < 100 microns literally) ...
Posted by Daronl on 15/05/2016 - 23:22
pentax k50
i have a Pentax k50 some times when i am Taking pics it dus not focus just keeps making a sound like a motor going in and out i put a post on a Pentax page some ware can not find the email it said take it back i got it from Jessop they said 25 pound to send it away even as it was bort in dec 15 ? ...
Posted by urmstonmember on 02/06/2016 - 22:46
pentax k50
All cameras may fail to focus on occasion. Things like poor light or a low contrast subject can be a problem. Also trying to focus too close. Is the problem repeatable? If so take it back to Jessops with the receipt and they'll either help you sort out the problem or get it repaired for you (presu...
Posted by JAK on 03/06/2016 - 00:45
pentax k50
Have you tried different lenses? I have trouble with the 55-300mm lens sometimes when it hunts back and forth trying to find focus.
Posted by RobL on 05/06/2016 - 10:13
Selectable auto focus points
How do people use the selectable auto focus points? I've pretty much always ignored them and focus recomposed with my K3, simply because the focus points don't cover the full frame and quite a lot of time I'd want to focus on something that isn't covered by a point. I notice that some newer came...
Posted by richardmills on 09/06/2016 - 09:40
Selectable auto focus points
I use them all the time. No trick to it. Simply select what I want to focus on pre-shot. Only thing is to remember to always reset it to the central position - for those quick snaps; If you don't and forget about it, you might end up with an unpleasant surprise. I rarely seem to have the need ...
Posted by Mag07 on 09/06/2016 - 10:25
Selectable auto focus points
I have found very few practical scenarios when making a focus point selection would be the intuitive or quickest choice ... However, following on from Maj07 above, I accept that it's one of those things that with more use and practice become intuitive and quicker. Now, what would be a good subject...
Posted by McGregNi on 09/06/2016 - 13:44
Selectable auto focus points
Isn't it easiest just to focus from the centre point and recompose? No faffing about pressing buttons required! That was the only option on all my film SLRs (centre prism.) And on cameras before those one had to guess or measure the distance! So thank goodness Pentax haven't put a joystick on the ...
Posted by JAK on 09/06/2016 - 16:49
Selectable auto focus points
Centre point focus is fast and the position can be held on that half press as we recompose. No need to select anything. If needed, QuickShift can be used to alter the focus point slightly. In practice I hardly ever do.
Posted by johnriley on 09/06/2016 - 18:14
Selectable auto focus points
See the reason I brought it up was because I was reading and watching a K1 review and that showed the new viewfinder led overlay. The viewfinder is much better but the auto focus points still don't cover much of the frame (unless your in crop mode) and the selector is still the same 4 way buttons th...
Posted by richardmills on 09/06/2016 - 19:31
Selectable auto focus points
If you have a certain composition in mind for repeated shots, and know the action/subject is always going to be off to the side, then moving the focus points makes sense. By all accounts a touchscreen selection whilst looking through the viewfinder works really well.
Posted by richandfleur on 09/06/2016 - 20:12
Selectable auto focus points
If you have a certain composition in mind for repeated shots, and know the action/subject is always going to be off to the side, then moving the focus points makes sense. By all accounts a touchscreen selection whilst looking through the viewfinder works really well. Such as following the moving...
Posted by StephenHampshire on 09/06/2016 - 20:24
