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Surfdabeach · 07-18-2011, 10:51 AM

I'm so very new to all of this. I have a Pentax k-r and my husband has a Sigma 18-50mm macro. I tried putting in on but it wasn't going on easily, so I stopped, thinking perhaps it doesn't fit.

Adam · 07-18-2011, 10:56 AM

Yes, it will work, as long as it's the Pentax (k-mount) version: Sigma 18-50mm f/2.8 EX DC Macro Lens for Pentax Digital 581109

Surfdabeach · 07-26-2011, 03:37 PM

I went to our camera store here in San Diego. The lens mentioned above WILL NOT work.

Marc Sabatella · 07-30-2011, 12:38 PM

Again, it will if it's the version Sigma makes for Pentax. It won't if it's the version Sigma makes for some other brand.

RioRico · 07-30-2011, 01:25 PM

Sigma makes lenses to fit several types of mounts. Just seeing SIGMA on the lens means nothing. The lens base or rear cap may say something like PK or PKR or FOR SA-KPR -- those would indicate a Pentax mount.

laytes · 12-10-2011, 11:34 AM

I have a Sigma 70-210 that I used to use with a Pentax PZ-10. The cap on the Sigma says "For Pentax-K , KR-P." It sounds like this lens will work with the K-R? Any guidance would be great. I've read some horror stories about lenses getting stuck on digital SLRs...
Chris

Docrwm · 12-10-2011, 11:47 AM

Originally posted by laytes

I have a Sigma 70-210 that I used to use with a Pentax PZ-10. The cap on the Sigma says "For Pentax-K , KR-P." It sounds like this lens will work with the K-R? Any guidance would be great. I've read some horror stories about lenses getting stuck on digital SLRs...
Chris

You shouldn't have any problem as the PZ-10 has a KAF2 mount and all lenses with a K-series mount will mount on all modern Pentax cameras.

sterretje · 12-10-2011, 12:55 PM

To add to Docrwm

Lenses that get stuck are lenses from before the AF era (having the infamous Ricoh pin). Your PZ-10 is an AF camera and therefore there should not be an issue; if it worked on the PZ-10, it should be safe on a dSLR.

07-18-2011, 10:51 AM	#1
Surfdabeach New Member Join Date: Jul 2011 Location: Coronado Posts: 2	Will Sigma 18-50 macro work on my Pentax K-r I'm so very new to all of this. I have a Pentax k-r and my husband has a Sigma 18-50mm macro. I tried putting in on but it wasn't going on easily, so I stopped, thinking perhaps it doesn't fit.

07-18-2011, 10:56 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Yes, it will work, as long as it's the Pentax (k-mount) version: Sigma 18-50mm f/2.8 EX DC Macro Lens for Pentax Digital 581109 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:

12-10-2011, 11:34 AM	#6
laytes New Member Join Date: Dec 2011 Posts: 3	Sigma Lens I have a Sigma 70-210 that I used to use with a Pentax PZ-10. The cap on the Sigma says "For Pentax-K , KR-P." It sounds like this lens will work with the K-R? Any guidance would be great. I've read some horror stories about lenses getting stuck on digital SLRs... Chris

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07-26-2011, 03:37 PM	#3
Surfdabeach New Member Join Date: Jul 2011 Location: Coronado Posts: 2 Original Poster	I went to our camera store here in San Diego. The lens mentioned above WILL NOT work.

07-30-2011, 12:38 PM	#4
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	Again, it will if it's the version Sigma makes for Pentax. It won't if it's the version Sigma makes for some other brand.

07-30-2011, 01:25 PM	#5
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	Sigma makes lenses to fit several types of mounts. Just seeing SIGMA on the lens means nothing. The lens base or rear cap may say something like PK or PKR or FOR SA-KPR -- those would indicate a Pentax mount.

12-10-2011, 11:47 AM	#7
Docrwm Veteran Member Join Date: Sep 2010 Location: Somewhere in the Southern US Photos: Gallery \| Albums Posts: 12,285	Originally posted by laytes I have a Sigma 70-210 that I used to use with a Pentax PZ-10. The cap on the Sigma says "For Pentax-K , KR-P." It sounds like this lens will work with the K-R? Any guidance would be great. I've read some horror stories about lenses getting stuck on digital SLRs... Chris You shouldn't have any problem as the PZ-10 has a KAF2 mount and all lenses with a K-series mount will mount on all modern Pentax cameras.

12-10-2011, 12:55 PM	#8
sterretje Veteran Member Join Date: Dec 2008 Location: Roodepoort, South Africa Photos: Gallery \| Albums Posts: 3,561	To add to Docrwm Lenses that get stuck are lenses from before the AF era (having the infamous Ricoh pin). Your PZ-10 is an AF camera and therefore there should not be an issue; if it worked on the PZ-10, it should be safe on a dSLR.

Will Sigma 18-50 macro work on my Pentax K-r

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