Win a Pentax Limited Lens: Raffle Now Live!

IchabodCrane · 08-08-2014, 07:34 PM

Question for all AF adjustment experts:

I haven't exhaustively tested this yet (multiple distances, focal lengths) but I'm beginning to think my two year old K-30 may now need a little more than +10 micro adjustment (I've had it at +8 for at least a year). Is there any special means or hack that might allow me to test this and perhaps set it to a higher figure? TIA.

**sergysergy** · 08-08-2014, 08:50 PM

For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30.

https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html

IchabodCrane · 08-09-2014, 01:23 PM

Originally posted by sergysergy

For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30.

https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html

Thanks, this helped a lot. I found out PKTether isn't compatible with the K-30 BUT if hit the enter debug mode command on the software interface and then disconnect the K-30... voila, you've turned on debug mode. I was able to make some AF adjustments beyond what the normal menu offers.

**sergysergy** · 08-09-2014, 04:37 PM

great

363923885 · 08-10-2014, 07:32 PM

I want to make AF ajustments for my new k50+DA50 1.8, it always misfocus when shooting portraits at a large aperture between F1.8 to F3.5 using OVF, I wonder if someone could tell me when to ajust "+" and "-", here's a sample photo, please help!

SteveB · 08-11-2014, 10:59 AM

Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter.

If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL.

363923885 · 08-11-2014, 07:13 PM

Originally posted by SteveB

Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter.

If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL.

Thank you, SteveB. I think I should read more about K50 User Manual, so I can handle my K50 well.

08-08-2014, 07:34 PM	#1
IchabodCrane Veteran Member Join Date: Sep 2012 Photos: Gallery \| Albums Posts: 1,728	Micro AF adjustment Question for all AF adjustment experts: I haven't exhaustively tested this yet (multiple distances, focal lengths) but I'm beginning to think my two year old K-30 may now need a little more than +10 micro adjustment (I've had it at +8 for at least a year). Is there any special means or hack that might allow me to test this and perhaps set it to a higher figure? TIA.

08-10-2014, 07:32 PM	#5
363923885 Junior Member Join Date: Feb 2013 Location: Wuhan Photos: Gallery Posts: 35	I want to make AF ajustments for my new k50+DA50 1.8, it always misfocus when shooting portraits at a large aperture between F1.8 to F3.5 using OVF, I wonder if someone could tell me when to ajust "+" and "-", here's a sample photo, please help! Last edited by 363923885; 04-27-2015 at 07:21 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lens Micro Focus Adjustment on K-X?	geekette	Pentax DSLR Discussion	4	12-23-2013 09:07 PM
Sigma lenses AF micro adjustment	Greyser	Pentax SLR Lens Discussion	8	01-07-2013 06:57 AM
K30 AF micro-adjustment	Roberts	Pentax K-30 & K-50	8	05-22-2012 05:06 PM
AF Fine Adjustment, focus correction, AF micro adj., AF fine tuning	annajonna	Pentax K-5 & K-5 II	13	11-19-2011 11:32 PM
AF micro-adjustment	MacKay	Pentax DSLR Discussion	10	05-07-2010 01:51 PM

08-08-2014, 08:50 PM	#2
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,175	For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30. https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html

08-09-2014, 01:23 PM	#3
IchabodCrane Veteran Member Join Date: Sep 2012 Photos: Gallery \| Albums Posts: 1,728 Original Poster	Originally posted by sergysergy For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30. https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html Thanks, this helped a lot. I found out PKTether isn't compatible with the K-30 BUT if hit the enter debug mode command on the software interface and then disconnect the K-30... voila, you've turned on debug mode. I was able to make some AF adjustments beyond what the normal menu offers.

08-09-2014, 04:37 PM	#4
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,175	great

08-11-2014, 10:59 AM	#6
SteveB Veteran Member Join Date: Mar 2007 Location: U.K. Posts: 685	Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter. If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL.

08-11-2014, 07:13 PM	#7
363923885 Junior Member Join Date: Feb 2013 Location: Wuhan Photos: Gallery Posts: 35	Originally posted by SteveB Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter. If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL. Thank you, SteveB. I think I should read more about K50 User Manual, so I can handle my K50 well.

Micro AF adjustment

Win a Pentax Limited Lens: Raffle Now Live!