Search results for 'back focus' - page 1064
Poll: AF Accuracy Adjustments
I selected "Correction required for one or more lenses" Msot of my lenses have needed adjustment ( both Pentax and SIgma ) on my K10D. K20D and two K-5s I haven't really checked since moving to the K5... My lenses appear to be sharp and I'm a little nervous of fiddling round and making a hash...
Posted by Smeggypants on 24/10/2012 - 00:28
Poll: AF Accuracy Adjustments
Cumulative (otherwise surely it would be "Apply All unless you've done an Apply One" :P). There's a 'hidden' engineering adjustment value (that can be set by an engineer via the debug menu) that is applied first. Next, the "Apply All" adjustment is added. Finally, the individual "Apply One" is ...
Posted by MattMatic on 24/10/2012 - 08:42
Poll: AF Accuracy Adjustments
I had problems with lenses on my K10D (thanks to Smeggypants and Anvh) I was able to effect an improvement. Not noticed a problem with the K5, so I've not checked it. I am somewhat bemused by the 'fact' that different lenses need different adjustments. Surely the image falling on the sensor sh...
Posted by carmagw on 24/10/2012 - 08:57
Poll: AF Accuracy Adjustments
...well, I can double check later and report back ;) Matt
Posted by MattMatic on 24/10/2012 - 09:29
Poll: AF Accuracy Adjustments
...well, I can double check later and report back ;) Matt Thanks Matt.
Posted by JohnX on 24/10/2012 - 09:54
Poll: AF Accuracy Adjustments
Whilst the AF adjustment is simple and easy to reverse, just don't be too quick to blame the camera/lens. Testing my DA 300mm yesterday I was convinced it had some back focus. Just tested it again using a ruler, with centre focus box, exactly over the 75 line, as suggested on here on everything f...
Posted by milamber on 24/10/2012 - 11:44
Poll: AF Accuracy Adjustments
edit: Just noticed the although the ruler is perfectly in focus at the 75 mark with what appears to be perfect fade into OOF either side, the carpet is sharply in focus for the 2cm or so in front of the 75. Is that right - sort of thought it would be the 1cm either side of the 75 that would be in fo...
Posted by Smeggypants on 25/10/2012 - 03:47
Poll: AF Accuracy Adjustments
After reading all the previous posts, I started to worry. I have only Pentax lenses (and a few home made manual focus). I have to assume, that Pentax should be good, or smart enough to make all the auto focus lenses to fit the camera bodies they sell with it. There must be some adjustments in t...
Posted by Horst on 01/11/2012 - 09:20
Poll: AF Accuracy Adjustments
edit: Just noticed the although the ruler is perfectly in focus at the 75 mark with what appears to be perfect fade into OOF either side, the carpet is sharply in focus for the 2cm or so in front of the 75. Is that right - sort of thought it would be the 1cm either side of the 75 that would be in fo...
Posted by pgweber on 01/11/2012 - 09:48
FA80-320
This is a very long shot... I have an optically great FA80-320 that appears to have had some impact damage. There are three of the mount screws that are almost stripped in the plastic, and the electronic contacts 'fall' into the lens when mounted so that the body can't see the lens properly. I...
Posted by MattMatic on 23/10/2012 - 11:08
Wide angled lens
Hi Stuart I have the Sigma 10-20mm in the cheaper version without HSM. Can't comment on the HSM version, but I love mine. Don't think you will find many people who don't love it. I took it to Italy a few months back and didn't take it off the camera as I was mainly visiting historical sites. I...
Posted by milamber on 24/10/2012 - 13:22
Wide angled lens
I've got the older non-HSM version and I too love it for the same reasons as milamber - yes it is noisy and not that fast to focus, when do you REALLY need a fast-focusing ultra-wide angle? Also, it is as tough as old boots - two falls with the camera right behind it (resulting in broken filters...
Posted by jeallen01 on 24/10/2012 - 20:28
Wide angled lens
No experience of the HSM version, but I took over 1000 photos in Italy with it and never once thought it wasn't focusing fast enough. I've not noticed any difference in focusing speed between this lens and any other I have. Mainly agreed - the only real difference I noticed on holiday between that a...
Posted by jeallen01 on 25/10/2012 - 15:35
K5 IIs Dream Glass Garage
Pentax has too many good lenses. The FA 43mm Limited and FA 77mm Limited have the most excellent rendering. They are the last two lenses I would sell. I didn't buy the FA 31mm Limited since it didn't jazz me the same way, but it is sharp edge to edge. The DA Limiteds are good for what they are bu...
Posted by rparmar on 27/10/2012 - 23:08
K5 IIs Dream Glass Garage
The other forum has a Leica lens club...don't look at it :D On truth I have never found a Leica lens that was "better" than a Pentax. Then again I haven't used those worth $10K. :shock: I did use some fantastic Zeiss glass back in the day, with a Contax. I think they beat Leica optics. But their ...
Posted by rparmar on 28/10/2012 - 15:43
The Bigger (14mm) Picture, at last
Ever since getting my K7 & 18-55 early this year, I've been yearning for a wider view - keep stepping back and bumping into things! After much deliberations and good advice from this forum, I took the plunge and invested in a new Samyang 14mm f2.8 IF ED UMC Aspherical. You can see how it pairs up...
Posted by McGregNi on 31/10/2012 - 23:36
The Bigger (14mm) Picture, at last
Hi Mc Greg, that certainly is a great matching pair with the speckled black on both camera and lens. Honestly I have read rave reviews about this humble lens. Wanted to buy one but ended up with a used Sigma 10-20, which is a much superior buy at almost the same price as for the new Samyang. And ge...
Posted by nanhi on 01/11/2012 - 05:36
The Bigger (14mm) Picture, at last
Nanhi, I toyed with the zoom idea as well, and the siggy 10-20 is well regarded. Guess I just liked the idea of a nice shiny new lens - the FF aspect appealed as well. The resolution of the Samyang was the main draw. I havn't found distortions to be too much of a worry for the stuff I taking, althou...
Posted by McGregNi on 01/11/2012 - 15:40
Is it worth buying ?
No harm done, you would get your money back just advertising it here on the forum. The front cap is worth a few quid just on it's own.
Posted by Mike-P on 02/11/2012 - 09:19
Lenses explained - found this
I found this page early when googling about how to tell which lens on ebay are manual and auto focus. I thought it might be of some use to other newbs like myself :) http://www.mosphotos.com/PentaxLensesExplained.html
Posted by suzzypoo on 01/11/2012 - 21:29
