Search results for 'back focus' - page 2088
Manual focus on old lenses
I just bought an M42 mount Takumar 200mm preset f3.5 lens, which is even better than expected.It's quite odd as it has 18 aperture blades. It's as sharp as any lens I own at f5.6, but when using focus confirmation I don't get results quite as sharp as I get in Live View. I was wondering if this is d...
Posted by aliengrove on 13/03/2013 - 19:50
Manual focus on old lenses
I find focus confirmation more often than not to be pretty accurate however at times once I have achieved focus I forget to refocus if either I or the subject move slightly but I am getting better at remembering:D I find that by making slight adjustments on the focus ring slightly improves focus ...
Posted by Stuey on 13/03/2013 - 20:10
Manual focus on old lenses
https://www.pentaxuser.com/forum/topic/focusing-manual-lenses-on-k5--38428#comm430366
Posted by dougf8 on 13/03/2013 - 20:11
pentax k5 LENS UNLOCK BUTTON has CAME OFF!
Hi, i just took my k5 out of camera bag, only to find the lens unlock button missing. It seems to have came off in the bag - no idea how. Has anyone else had this problem?. I have tried putting it back on, but it just keeps falling off again?. Is it (diy) fixable at all, or to i have to send it off ...
Posted by focus on 30/03/2013 - 13:23
pentax k5 LENS UNLOCK BUTTON has CAME OFF!
Agree with Mike, it`s not an isolated case. Sent my K5 to Johnson's for a new button. Was only away for a week. If you want to remove a lens before sending just square off a cocktail stick and press in the stalk of the release button, worked for me. The button has an integral dust/water seal so best...
Posted by focus on 30/03/2013 - 17:23
K-5 Focus Questions
I would welcome some advice from the knowledgeable members regarding some AF questions on the K-5. Today, I've done a Wedding Shoot with Shaun Wilson and to ensure everything was ship-shape prior to this, I systematically calibrated the AF on all my lenses yesterday, both on the K-5 and the K-5II...
Posted by davidstorm on 31/03/2013 - 23:10
K-5 Focus Questions
If everything needs adjusting, then clearly time to attend to the K-5. I would imagine that calibration could drift, but I think I would expect it to be more wear and tear than anything else. For example, the lens is spinning along and has to stop accurately. If it was a car then we'd adjust the ...
Posted by johnriley on 31/03/2013 - 23:24
K-5 Focus Questions
If they are all on the + side you could enter Debug Mode and change the setting to +100 which is the same as +10. Your lenses should then be around +/- 0 The +/- 10 in the normal menu isn't enough it should be +/- 20, but I've never seen anyone asking for that in any threads asking Pentax for...
Posted by Algernon on 01/04/2013 - 08:07
K-5 Focus Questions
try "apply all" of 8 and then do individual calibrations again.
Posted by dpm on 01/04/2013 - 09:53
K-5 Focus Questions
try "apply all" of 8 and then do individual calibrations again. That just applies 8 (+ or -) to any old lenses that don't have ID's to go into the 20 lens dB :oops: -
Posted by Algernon on 01/04/2013 - 09:56
K-5 Focus Questions
When we discussed AF adjustment before, someone agreed with my supposition that the adjustment was like adding a shim (or even an imaginary negative shim) between the lens and body to adjust the focus (lens focal point) to sensor distance. If there is the possibility of something working loose ar...
Posted by pgweber on 01/04/2013 - 10:06
K-5 Focus Questions
These sort of calibrations are best done by those who have the equipment and actually know what the procedure is. I wouldn't try adjusting a lens mount by guesswork. Cameras are precision instruments and really should be calibrated by the repair houses that are properly equipped.
Posted by johnriley on 01/04/2013 - 10:25
K-5 Focus Questions
If they are all on the + side you could enter Debug Mode Hi Algi, thanks for this suggestion, very helpful. I know how to enter Debug Mode on the K-x, but how is it done on the K-5? Is the same modset file that is used for all cameras? Regards David
Posted by davidstorm on 01/04/2013 - 11:37
K-5 Focus Questions
try "apply all" of 8 and then do individual calibrations again. Hi, I have the same issue with my K-5 almost all of my lenses have to be +10. Recently I bought 21mm ltd and had to return it as it needed more than +10 units. So sad it is limited only to +/-10, up to 20 should be ideal. I have tried a...
Posted by SkilakDeZoo on 01/04/2013 - 11:39
K-5 Focus Questions
If they are all on the + side you could enter Debug Mode and change the setting to +100 which is the same as +10. Your lenses should then be around +/- 0 The +/- 10 in the normal menu isn't enough it should be +/- 20, but I've never seen anyone asking for that in any threads asking Pentax for...
Posted by SkilakDeZoo on 01/04/2013 - 11:41
K-5 Focus Questions
I'd send off the K5 and a +10 lens for calibration. There's a mechanical adjustment available via the base plate. I have details of 'how-to' for a K20D but not the K5. Once one lens is accurate I'd guess most/all of the others will be adjustable via AF adjust if required. Doubt it'll be cover...
Posted by JohnX on 01/04/2013 - 11:41
K-5 Focus Questions
try "apply all" of 8 and then do individual calibrations again. Hi, I have the same issue with my K-5 almost all of my lenses have to be +10. Recently I bought 21mm ltd and had to return it as it needed more than +10 units. So sad it is limited only to +/-10, up to 20 should be ideal. I have tried a...
Posted by JohnX on 01/04/2013 - 11:46
K-5 Focus Questions
I've found a link to PK_Tether which includes an option to enable Debug Mode. It seems that the route available via a Modset file on older bodies doesn't work on the K-5 as they have made the software more secure against 'hacking' (not that the debug menu is hacking because it's designed into the s...
Posted by davidstorm on 01/04/2013 - 11:51
K-5 Focus Questions
[quote:3496ace15f="dpm"]try "apply all" of 8 and then do individual calibrations again. Hi, I have the same issue with my K-5 almost all of my lenses have to be +10. Recently I bought 21mm ltd and had to return it as it needed more than +10 units. So sad it is limited only to +/-10, up to 20 should ...
Posted by SkilakDeZoo on 01/04/2013 - 11:58
K-5 Focus Questions
If they are all on the + side you could enter Debug Mode Hi Algi, thanks for this suggestion, very helpful. I know how to enter Debug Mode on the K-x, but how is it done on the K-5? Is the same modset file that is used for all cameras? Regards David Ricehigh should have covered it all. Th...
Posted by Algernon on 01/04/2013 - 12:01
