Old Pentax lenses // K-S1

Mimik · 02-23-2015, 12:09 PM

I just bought some old Pentax lenses (and camera).

Will the lenses mount on my K-S1?

Adam · 02-23-2015, 12:15 PM

Yes, they will mount and work just fine. You need to stop-down meter as described in this article:
https://www.pentaxforums.com/forums/54-pentax-lens-articles/110657-how-use-me...k-x-k-7-a.html

**RobA_Oz** · 02-23-2015, 12:15 PM

They certainly will, but read this thread for more information about exposure settings.

**UncleVanya** · 02-23-2015, 12:16 PM

Yes.

More importantly look here:
https://www.pentaxforums.com/forums/184-pentax-k-s1-k-s2/282681-k-s1-manual-focus-lenses.html

Mimik · 02-23-2015, 01:01 PM

Thanks. Will test it tomorrow.

It also came with a 42mm adapter, perfect for my Yashica 50mm f/1.9.

Not a Number · 02-23-2015, 02:44 PM

Looks like you hit the jackpot. Is that a set of extension tubes too?

stevebrot · 02-23-2015, 03:38 PM

Nice piece of kit. It is not everyday that you see a pristine black K-2.

Steve

(...really wants the kit...very jealous...)

sterretje · 02-23-2015, 10:19 PM

I think the Yashica is an auto-only lens; if so, you need to do a bit of surgery on the Yashica or it will always shoot wide open. If I'm not mistaken, I have the same lens and started the process but lack of JIS screwdrivers has stopped the process (for now).

Mimik · 02-24-2015, 09:11 AM - **1 Like**

Thanks, I can now use the lenses on my K-S1.

First shot with K-S1 and 55mm f/1.8. Got some MF learning ahead.

**UncleVanya** · 02-24-2015, 09:47 AM

Awesome! Glad that you got past that hurdle. With my K50 I struggle a bit with MF -Viewfinder ( PDAF focus confirmation ) and LiveView ( CDAF Focus peaking ) both give me good results at times but there are focus misses. I'm starting to consider focus bracketing as a hedge when I'm shooting MF. Honestly split screen replacement focusing screens are on my list of options as well.

Mimik · 02-24-2015, 09:54 AM

Originally posted by stevebrot

Nice piece of kit. It is not everyday that you see a pristine black K-2.

Steve

(...really wants the kit...very jealous...)

Not sure how pristine it is, got some marks and scuffs around. But maybe not that bad.

02-23-2015, 12:09 PM	#1
Mimik New Member Join Date: Jan 2014 Posts: 15	Old Pentax lenses // K-S1 I just bought some old Pentax lenses (and camera). Will the lenses mount on my K-S1?

02-23-2015, 12:15 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Yes, they will mount and work just fine. You need to stop-down meter as described in this article: https://www.pentaxforums.com/forums/54-pentax-lens-articles/110657-how-use-me...k-x-k-7-a.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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02-23-2015, 12:15 PM	#3
RobA_Oz Site Supporter Join Date: Nov 2008 Location: Tasmania, Australia Photos: Gallery Posts: 8,197	They certainly will, but read this thread for more information about exposure settings.

02-23-2015, 12:16 PM	#4
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,404	Yes. More importantly look here: https://www.pentaxforums.com/forums/184-pentax-k-s1-k-s2/282681-k-s1-manual-focus-lenses.html

02-23-2015, 01:01 PM	#5
Mimik New Member Join Date: Jan 2014 Posts: 15 Original Poster	Thanks. Will test it tomorrow. It also came with a 42mm adapter, perfect for my Yashica 50mm f/1.9.

02-23-2015, 02:44 PM	#6
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	Looks like you hit the jackpot. Is that a set of extension tubes too?

02-23-2015, 03:38 PM	#7
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Nice piece of kit. It is not everyday that you see a pristine black K-2. Steve (...really wants the kit...very jealous...)

02-23-2015, 10:19 PM	#8
sterretje Veteran Member Join Date: Dec 2008 Location: Roodepoort, South Africa Photos: Gallery \| Albums Posts: 3,561	I think the Yashica is an auto-only lens; if so, you need to do a bit of surgery on the Yashica or it will always shoot wide open. If I'm not mistaken, I have the same lens and started the process but lack of JIS screwdrivers has stopped the process (for now).

02-24-2015, 09:11 AM - 1 Like	#9
Mimik New Member Join Date: Jan 2014 Posts: 15 Original Poster	Thanks, I can now use the lenses on my K-S1. First shot with K-S1 and 55mm f/1.8. Got some MF learning ahead.

02-24-2015, 09:47 AM	#10
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,404	Awesome! Glad that you got past that hurdle. With my K50 I struggle a bit with MF -Viewfinder ( PDAF focus confirmation ) and LiveView ( CDAF Focus peaking ) both give me good results at times but there are focus misses. I'm starting to consider focus bracketing as a hedge when I'm shooting MF. Honestly split screen replacement focusing screens are on my list of options as well.

02-24-2015, 09:54 AM	#11
Mimik New Member Join Date: Jan 2014 Posts: 15 Original Poster	Originally posted by stevebrot Nice piece of kit. It is not everyday that you see a pristine black K-2. Steve (...really wants the kit...very jealous...) Not sure how pristine it is, got some marks and scuffs around. But maybe not that bad.