Search results for 'back focus' - page 2014
Focus issue - anyone near to Oxfordshire ?
OK here we are. Same lens - Tamron 70-350..... Compressed down from about 2.5mb to under 1mb. No processing at all.. 1st shot is same security lamp, but @ F11 - ISO 200 - 1/250th - 350mm ( full tele ) Spot Meter http://img.photobucket.com/albums/v175/slapper/K10D%20test/LampF11.jpg Next s...
Posted by PierroJ on 23/07/2009 - 12:50
Focus issue - anyone near to Oxfordshire ?
I must admit - they look so much better ! Even with the compression Best try that 500mm lens now i think
Posted by PierroJ on 23/07/2009 - 12:54
Focus issue - anyone near to Oxfordshire ?
They look sharp to me - the other one looked soft, not out of focus. The lower ISO will have helped too.
Posted by Gwyn on 23/07/2009 - 12:58
Focus issue - anyone near to Oxfordshire ?
Those other soft pics were taken in dull light. Today the sun is out, so i lowered the ISO. Maybe the K10 ISO performance is less then stellar above 200. Here's a shot for Mike W, of a facing wall, with a grill mounted on it. Full tele 350mm - F16 - 1/200th - ISO 200 - Spot meter. No processi...
Posted by PierroJ on 23/07/2009 - 13:10
Focus issue - anyone near to Oxfordshire ?
I realised that the lighting circumstances were different, Pierro, but since you are using a tripod and remote why not go for the lower ISO and a longer exposure for a static object? It's always best to go for the lowest ISO you can.
Posted by Gwyn on 23/07/2009 - 13:19
Focus issue - anyone near to Oxfordshire ?
It does look to me like a soft lens issue and not a focussing one. I'm in Aylesbury and you're quite welcome to come over, but do bear in mind I have little experience with older lenses!
Posted by Unlocker on 23/07/2009 - 13:41
Focus issue - anyone near to Oxfordshire ?
That wall looks OK to me. Not spectacular maybe but OK. I can't recall if you shoot RAW or not but some processing from the RAW would sharpen it up a bit. The security lamp and wall look OK too really. I didn't follow the catch in focus debate so I'm not too sure what that is but it looks l...
Posted by mikew on 23/07/2009 - 13:41
Focus issue - anyone near to Oxfordshire ?
You're right Gwyn - didnt think of that ! Should have gone right to 100. Taken 2 more shots with the 500mm Pentacon this time. All other criteria the same. Resized from 3.9mb to under 1mb 1st shot: F16 - 1/160th - 500mm - ISO 200 - Spot http://img.photobucket.com/albums/v175/slapper/K10D%...
Posted by PierroJ on 23/07/2009 - 13:44
Focus issue - anyone near to Oxfordshire ?
It does look to me like a soft lens issue and not a focussing one. I'm in Aylesbury and you're quite welcome to come over, but do bear in mind I have little experience with older lenses! Maybe we could meet up at an RSPB reserve - you ever been to Ottmoor ? Or is there a reserve nearer you ? I'd...
Posted by PierroJ on 23/07/2009 - 13:47
Focus issue - anyone near to Oxfordshire ?
I think the first one has a little camera shake. Given the lens the second one looks OK doesn't it? No disrespect intended but the Pentacon was never a first tier lens was it? If the orgininal is 3.9 meg you're shooting JPEG then I guess. Why not shoot RAW and use SilkyPIX and possibly be v...
Posted by mikew on 23/07/2009 - 13:49
Focus issue - anyone near to Oxfordshire ?
That wall looks OK to me. Not spectacular maybe but OK. I can't recall if you shoot RAW or not but some processing from the RAW would sharpen it up a bit. The security lamp and wall look OK too really. I didn't follow the catch in focus debate so I'm not too sure what that is but it looks l...
Posted by PierroJ on 23/07/2009 - 13:50
Focus issue - anyone near to Oxfordshire ?
I think the first one has a little camera shake. Given the lens the second one looks OK doesn't it? No disrespect intended but the Pentacon was never a first tier lens was it? If the orgininal is 3.9 meg you're shooting JPEG then I guess. Why not shoot RAW and use SilkyPIX and possibly be v...
Posted by PierroJ on 23/07/2009 - 13:53
Focus issue - anyone near to Oxfordshire ?
But I do think RAW plus some sharpening at the RAW conversion stage might help a lot. I fiddle with the settings a lot at that stage even with my modern lenses. I think in film days were much less demanding in many ways. There were so many more variables in the process that introduced compromises...
Posted by mikew on 23/07/2009 - 13:54
Focus issue - anyone near to Oxfordshire ?
Those other soft pics were taken in dull light. Today the sun is out, so i lowered the ISO. Maybe the K10 ISO performance is less then stellar above 200. OK, now let's stop blaming the equipment and start looking at your understanding of it. Your equipment is not at fault. What needs some work...
Posted by Mannesty on 23/07/2009 - 14:36
Focus issue - anyone near to Oxfordshire ?
I have a few Adaptall 2 lenses and get the same results in certain light conditions, it's like a haze over the picture (mainly the subject of my focus). Putting them through Lightroom with a bit of contrast and sharpening helps no end.
Posted by Mike-P on 23/07/2009 - 16:54
Focus issue - anyone near to Oxfordshire ?
I am in a similar situation to you PierroJ, I take pictures and I think I have a focussing problem at 200 or 300 mm... It boils down to: Appalling technique on my part..... Iffy focussing on the K10Ds part when paired with my Sigma lenses checking on LCD I think I have soft/OOF photos check...
Posted by Pwynnej on 23/07/2009 - 18:34
Manual lens - green button - stop down meassure
I have a few fully manual lenses like Petri 135mm F2.8 and the Kenlock 28mm F2.8. Aperture is manual - without the A setting on the aperture ring. Focus is manual as well. Not relevant in this post though. My problem is that I find the meassurement of my K20D camera, with the Stop Down fu...
Posted by niklas on 24/07/2009 - 11:57
How to know what P-shift is in use?
Niklas, I'm a bit confused by your comments... Sv works like this: * Front dial adjusts ISO. You see this in the viewfinder * Camera chooses appropriate Av/Tv combination for the chosen ISO * What values it chooses initially depends on the Custom setting (Normal, High speed, Depth, MTF) * Wh...
Posted by MattMatic on 02/08/2009 - 20:43
1 month old DA* 50-135 no longer communicating to camera body
Pentax service? Hah! Still waiting for my lens back. Two months and counting...
Posted by womble on 31/07/2009 - 21:54
1 month old DA* 50-135 no longer communicating to camera body
I sent my Tamron 24-135mm to Intro2002 for a rebuild after an accident nearly 3 months ago .. still not had it back so it's not just Pentax.
Posted by Mike-P on 31/07/2009 - 22:09
