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Squier · 11-15-2010, 11:02 AM

I got this TC, its labelled PK-A/R-PK, but can i assume this will not AF on my FA lenses ? Since there isnt an M/AF switch on FA's, i'm figuring that i cant/shouldnt manually focus ?

**boriscleto** · 11-15-2010, 11:25 AM

The TC will not have a screw-drive pass through so there is nothing to worry about when it comes to manual focusing. You don't want to manual focus a FA when it is attached to the camera and AF is turned on because the screw-drive will be engaged. Switching to MF simply disengages the screw-drive.

You will want to be careful with that TC though. The "Ricoh" pin might get stuck.

Squier · 11-15-2010, 11:29 AM

Thanks Boris

The TC engages and disengages fine, on body and lens. Just a matter of remembering to throw the body AF/MF switch to MF so i can manually focus the FA

One thing, considering this TC has the contacts, why no Aperture reading ? All i got is F ---

SOldBear · 11-15-2010, 12:38 PM

Originally posted by Squier

One thing, considering this TC has the contacts, why no Aperture reading ? All i got is F ---

Read this thread.

It's simple after I figured it out. But I lost a lot of hair before that

Squier · 11-15-2010, 01:07 PM

Brilliant Bear!

Mine is exactly like your black version, 6 pins in a row, and the odd extra one further off round the flange.

I think some scraping is in order

SOldBear · 11-15-2010, 04:04 PM

Originally posted by Squier

...and the odd extra one further off round the flange.

That's the infamous Ricoh pin.

In this case, it's harmless because its head is rounded. The TC does not get stuck on Pentax camera body.

Squier · 11-15-2010, 04:20 PM

Yup, i checked that out thoroughly when i bought it. No issues with that pin

I did the scrape already, and the aperture in the metering is working fine

11-15-2010, 11:02 AM	#1
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706	PK-A / R-PK TC not feeling the love I got this TC, its labelled PK-A/R-PK, but can i assume this will not AF on my FA lenses ? Since there isnt an M/AF switch on FA's, i'm figuring that i cant/shouldnt manually focus ?

11-15-2010, 11:29 AM	#3
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706 Original Poster	Thanks Boris The TC engages and disengages fine, on body and lens. Just a matter of remembering to throw the body AF/MF switch to MF so i can manually focus the FA One thing, considering this TC has the contacts, why no Aperture reading ? All i got is F --- Last edited by Squier; 11-15-2010 at 11:38 AM.

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11-15-2010, 11:25 AM	#2
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	The TC will not have a screw-drive pass through so there is nothing to worry about when it comes to manual focusing. You don't want to manual focus a FA when it is attached to the camera and AF is turned on because the screw-drive will be engaged. Switching to MF simply disengages the screw-drive. You will want to be careful with that TC though. The "Ricoh" pin might get stuck.

11-15-2010, 12:38 PM	#4
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	Originally posted by Squier One thing, considering this TC has the contacts, why no Aperture reading ? All i got is F --- Read this thread. It's simple after I figured it out. But I lost a lot of hair before that

11-15-2010, 01:07 PM	#5
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706 Original Poster	Brilliant Bear! Mine is exactly like your black version, 6 pins in a row, and the odd extra one further off round the flange. I think some scraping is in order

11-15-2010, 04:04 PM	#6
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	Originally posted by Squier ...and the odd extra one further off round the flange. That's the infamous Ricoh pin. In this case, it's harmless because its head is rounded. The TC does not get stuck on Pentax camera body.

11-15-2010, 04:20 PM	#7
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 706 Original Poster	Yup, i checked that out thoroughly when i bought it. No issues with that pin I did the scrape already, and the aperture in the metering is working fine

PK-A / R-PK TC not feeling the love

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