Catch-in Focus with fully manual lens

Squier · 10-02-2010, 09:35 AM

I think i'd prefer to sand down the lens mount face, rather than use foil. I'd be worried about bits of foil eventually tearing off and being left in the body.

tarsus · 10-02-2010, 09:40 AM

Shooting manual lenses on Pentax DSLRs « robertsdonovan.com I shoot manual lenses. This link is to a very good tutorial on using manual with Pentax.

Squier · 10-02-2010, 10:22 AM

reading that now - good link

**fewayne** · 10-03-2010, 09:05 PM

+1 on it working with manual lenses. I just tried it with my Pentax-M 50 f/1.7 on my K-7. Wide open, at close distances, too, just to be difficult. It appears to do quite a nice job, thank you.

Now, mind that the camera only uses the center autofocus sensor spot when such a lens is mounted. So you have to center the subject exactly -- not always best for composition.

tempelorg · 05-03-2011, 08:02 AM

BTW, you can also quickly reverse the Catch-in Focus mode if you set the AF button up so that it Cancels AF. With that, you can do this:

Hold down the Shutter button -> no picture taken as long as it's out of focus
Now press the AF picture -> picture is taken instantly, even of out of focus. I.e. you can disabled CIF this way.

The Jannie · 05-04-2011, 12:49 PM

Originally posted by Squier

I'd be worried about bits of foil eventually tearing off and being left in the body.

Eventually, nothing. I tried foil; it scrunched off at the first turn. I've sanded off the anodising from my manual lens mounts and had no problems since

10-02-2010, 09:40 AM	#32
tarsus Senior Member Join Date: Feb 2008 Location: Mount Shasta Posts: 185	Shooting manual lenses on Pentax DSLRs « robertsdonovan.com I shoot manual lenses. This link is to a very good tutorial on using manual with Pentax. Last edited by tarsus; 10-02-2010 at 03:12 PM.

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10-02-2010, 09:35 AM	#31
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706	I think i'd prefer to sand down the lens mount face, rather than use foil. I'd be worried about bits of foil eventually tearing off and being left in the body.

10-02-2010, 10:22 AM	#33
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706	reading that now - good link

10-03-2010, 09:05 PM	#34
fewayne Site Supporter Join Date: Oct 2010 Location: Wisconsin Photos: Gallery \| Albums Posts: 115	+1 on it working with manual lenses. I just tried it with my Pentax-M 50 f/1.7 on my K-7. Wide open, at close distances, too, just to be difficult. It appears to do quite a nice job, thank you. Now, mind that the camera only uses the center autofocus sensor spot when such a lens is mounted. So you have to center the subject exactly -- not always best for composition.

05-03-2011, 08:02 AM	#35
tempelorg Senior Member Join Date: Apr 2011 Location: Munich Photos: Gallery Posts: 203	BTW, you can also quickly reverse the Catch-in Focus mode if you set the AF button up so that it Cancels AF. With that, you can do this: Hold down the Shutter button -> no picture taken as long as it's out of focus Now press the AF picture -> picture is taken instantly, even of out of focus. I.e. you can disabled CIF this way.

05-04-2011, 12:49 PM	#36
The Jannie Senior Member Join Date: Oct 2010 Location: South Yorkshire Photos: Gallery Posts: 215	Originally posted by Squier I'd be worried about bits of foil eventually tearing off and being left in the body. Eventually, nothing. I tried foil; it scrunched off at the first turn. I've sanded off the anodising from my manual lens mounts and had no problems since