Win a Pentax Limited Lens: Raffle Now Live!

eyou · 09-16-2009, 11:30 AM

maybe im just confused with how this is supposed to work with AF lenses.

I thought this was supposed to work like MF lenses, where you start out of focus and manually start focusing until you get focus confirmation and the camera snaps a picture.

From what you are describing, it seems that with an AF lens, it will simply autofocus then take a picture like normal camera operation. How does catch in focus differ than simply holding the shutter button down without this option on?

Eruditass · 09-16-2009, 12:47 PM

Unfortunately, it not effect AF lenses that do not have a MF switch on the lens, short of shorting out the contacts:

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/70085-some-more...questions.html

wasser · 09-16-2009, 12:53 PM

Nope, it seems I was the one confused.

It only works with MF lenses and AF lenses with a AF/MF switch. AF lenses without the switch will not work.

eyou · 09-16-2009, 04:08 PM

ahhh.

i think i saw earlier that you said you used in on da70. i guess you mean da17-70mm (or you said that and i read it wrong) thats why i thought I was doing something wrong cause I was using it with my 21mm limited and totally baffled... haha

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to use Trap-focus or Catch-in focus	eurostar	Pentax DSLR and Camera Articles	34	07-22-2017 08:29 PM
catch in focus?	janstew	Pentax DSLR Discussion	40	03-15-2010 05:02 PM
K-7 Catch in Focus	konraDarnok	Pentax DSLR Discussion	3	10-18-2009 01:26 PM
catch-in-focus	cwood	Pentax DSLR Discussion	48	04-09-2009 08:02 PM
Focus problem with K2000	millertime	Pentax DSLR Discussion	8	03-29-2009 10:10 PM

09-16-2009, 11:30 AM	#16
eyou Senior Member Join Date: Feb 2009 Posts: 224	maybe im just confused with how this is supposed to work with AF lenses. I thought this was supposed to work like MF lenses, where you start out of focus and manually start focusing until you get focus confirmation and the camera snaps a picture. From what you are describing, it seems that with an AF lens, it will simply autofocus then take a picture like normal camera operation. How does catch in focus differ than simply holding the shutter button down without this option on?

09-16-2009, 12:47 PM	#17
Eruditass Veteran Member Join Date: Jul 2009 Photos: Gallery Posts: 2,207	Unfortunately, it not effect AF lenses that do not have a MF switch on the lens, short of shorting out the contacts: https://www.pentaxforums.com/forums/pentax-beginners-corner-q/70085-some-more...questions.html

09-16-2009, 12:53 PM	#18
wasser Veteran Member Join Date: Jan 2009 Location: northern ca Photos: Gallery Posts: 427	Nope, it seems I was the one confused. It only works with MF lenses and AF lenses with a AF/MF switch. AF lenses without the switch will not work.

09-16-2009, 04:08 PM	#19
eyou Senior Member Join Date: Feb 2009 Posts: 224	ahhh. i think i saw earlier that you said you used in on da70. i guess you mean da17-70mm (or you said that and i read it wrong) thats why i thought I was doing something wrong cause I was using it with my 21mm limited and totally baffled... haha

K2000 catch focus problem (need help!)

Win a Pentax Limited Lens: Raffle Now Live!