Confused about all the different mounts? Pk? PKA? M42?

kelvin.wong · 03-21-2011, 04:43 PM

I am receiving a Pentax K-7 soon! Yey! But i won't have any money to buy any new lenses, so i am seeing for any old manual focus lenses. Many have different mounts. Can someone explain them for me and recommend me cheap a M42 adapter for my Pentax K-7 Digital? Many Thanks, Kelvin

Adam · 03-21-2011, 04:52 PM

See here:

Pentax K-Mount Lenses Explained: The differences between various Pentax lens series

Just ignore the P, as it stands for Pentax.

kelvin.wong · 03-21-2011, 04:58 PM

Ahh i see, thanks for the link. I am considering a lens that will use a m42 adapter. Is there an adapter that will allow me to directly use it on a K7 body?

Coeurdechene · 03-21-2011, 04:58 PM - **1 Like**

Originally posted by kelvin.wong

and recommend me cheap a M42 adapter

Don't buy the cheap one..there are some retailers in ebay selling the original one. It costs a bit more but it's easier to put on and off...it has to go all the way in, and those cheap who do are more encumbering (they come with a tool to remove them whereas the original will go in and out without trouble), and those who don't make you lose infinity focus.

**Deimos** · 03-21-2011, 05:21 PM

+1

The genuine pentax one is about 25 used and 30 plus tax new

Adam · 03-21-2011, 06:11 PM

Originally posted by kelvin.wong

Is there an adapter that will allow me to directly use it on a K7 body?

Yes- see here: https://www.pentaxforums.com/forums/pentax-lens-articles/110657-how-use-manua...7-k-x-etc.html

03-21-2011, 04:43 PM	#1
kelvin.wong New Member Join Date: Jan 2011 Location: Liverpool Posts: 23	Confused about all the different mounts? Pk? PKA? M42? I am receiving a Pentax K-7 soon! Yey! But i won't have any money to buy any new lenses, so i am seeing for any old manual focus lenses. Many have different mounts. Can someone explain them for me and recommend me cheap a M42 adapter for my Pentax K-7 Digital? Many Thanks, Kelvin

03-21-2011, 04:52 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	See here: Pentax K-Mount Lenses Explained: The differences between various Pentax lens series Just ignore the P, as it stands for Pentax. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

03-21-2011, 06:11 PM	#6
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	Originally posted by kelvin.wong Is there an adapter that will allow me to directly use it on a K7 body? Yes- see here: https://www.pentaxforums.com/forums/pentax-lens-articles/110657-how-use-manua...7-k-x-etc.html Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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03-21-2011, 04:58 PM	#3
kelvin.wong New Member Join Date: Jan 2011 Location: Liverpool Posts: 23 Original Poster	Ahh i see, thanks for the link. I am considering a lens that will use a m42 adapter. Is there an adapter that will allow me to directly use it on a K7 body?

03-21-2011, 04:58 PM - 1 Like	#4
Coeurdechene Veteran Member Join Date: Oct 2010 Location: madrid Photos: Albums Posts: 833	Originally posted by kelvin.wong and recommend me cheap a M42 adapter Don't buy the cheap one..there are some retailers in ebay selling the original one. It costs a bit more but it's easier to put on and off...it has to go all the way in, and those cheap who do are more encumbering (they come with a tool to remove them whereas the original will go in and out without trouble), and those who don't make you lose infinity focus.

03-21-2011, 05:21 PM	#5
Deimos Site Supporter Join Date: Oct 2010 Location: Kingdom of Wonder Posts: 1,777	+1 The genuine pentax one is about 25 used and 30 plus tax new