Will Sigma mount lenses fit Pentax??

stl09 · 04-08-2010, 08:02 PM

Are Sigma mount lenses compatible with Pentax? Or does this require an adapter?

Thanks

Peter Zack · 04-08-2010, 08:04 PM

Sigma mount (for Sigma Cameras) will not and there's no adapter as far as I know. But Sigma makes lenses with a Pentax mount. What are you looking at?

stl09 · 04-08-2010, 08:08 PM

Looking for a longer lens and for some reason I thought the two mounts were compatible. Clearly I'm mistaken and glad I asked.

I've been reading posts on the forum on Sigma 100-300 vs. 50-500mm vs. 150-500mm and just cannot decide which would be the best choice.

I recently picked up the original version of Sigma 70-200 f2.8 and what a beautiful lens.

Thanks for the quick reply.

Peter Zack · 04-08-2010, 08:11 PM

All of those lenses are available in Pentax mounts. I assume you found one of them on Sigma mount?

stl09 · 04-08-2010, 08:14 PM

yes and the price didn't seem bad. There just isn't many of these in the pentax mount or at least that I can find.

Peter Zack · 04-08-2010, 09:09 PM

Well maybe used not many but they are all available new.

Pentaxor · 04-08-2010, 10:33 PM

Sigma 150/2.8 <<<<----- I hate Sigma for not making one for the Pentax mount.

little laker · 04-08-2010, 11:10 PM

Originally posted by stl09

yes and the price didn't seem bad. There just isn't many of these in the pentax mount or at least that I can find.

They're harder to find in SA (Sigma) mount used

Originally posted by Pentaxor

Sigma 150/2.8 <<<<----- I hate Sigma for not making one for the Pentax mount.

Forget the 150mm f2.8, I'd like to see Sigma make a 135mm f1.8 or faster.

Pentaxor · 04-08-2010, 11:13 PM

Originally posted by little laker

Forget the 150mm f2.8, I'd like to see Sigma make a 135mm f1.8 or faster.

and how much do you think that would cost?

little laker · 04-09-2010, 12:18 AM

Originally posted by Pentaxor

and how much do you think that would cost?

If they made it I would think somewhere between $1,200 and $1,500 US.

Pentaxor · 04-09-2010, 12:59 AM

Originally posted by little laker

If they made it I would think somewhere between $1,200 and $1,500 US.

I hope that your prophecy comes true.

I would just wonder how much the Sigma 85/1.4 would cost if that 135 is selling around the price bracket that you mentioned.

little laker · 04-09-2010, 01:10 AM

Originally posted by Pentaxor

I would just wonder how much the Sigma 85/1.4 would cost if that 135 is selling around the price bracket that you mentioned.

The Sigma world is expecting around the $800.00 - $850.00 street price, however that's just entirely speculation at this point.

I honestly don't know if Sigma's even made any test units yet. Although they'll be coming soon.

Pentaxor · 04-09-2010, 06:13 PM

Originally posted by little laker

The Sigma world is expecting around the $800.00 - $850.00 street price, however that's just entirely speculation at this point.

I honestly don't know if Sigma's even made any test units yet. Although they'll be coming soon.

I think I would buy one at that price point. seems a good price point considering that they want to get some share of the market against the FA77.

04-08-2010, 08:02 PM	#1
stl09 Veteran Member Join Date: Apr 2009 Location: St. Louis, MO Photos: Gallery Posts: 487	Will Sigma mount lenses fit Pentax?? Are Sigma mount lenses compatible with Pentax? Or does this require an adapter? Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Modifying C/Y mount to fit Pentax K; hard, easy?	excanonfd	Canon, Nikon, Sony, and Other Camera Brands	2	01-20-2010 09:35 PM
Lenses that fit Pentax DSLRs	TomK	Canon, Nikon, Sony, and Other Camera Brands	7	09-13-2009 08:19 PM
Which Pentax K-mount Lenses Fit Which Bodies	Ole	Pentax Lens Articles	1	03-04-2009 03:29 AM
Adventures in Fleabay selling: no, a Pentax mount lens does not fit on a Nikon	heatherslightbox	General Talk	8	03-19-2008 02:15 PM
Will Rokinon Lenses fit Pentax K100D super	sureshgvv	Pentax SLR Lens Discussion	0	11-26-2007 04:01 PM

04-08-2010, 08:04 PM	#2
Peter Zack Pentaxian Moderator Emeritus Join Date: May 2007 Location: Edmonton Alberta, Canada Photos: Gallery \| Albums Posts: 10,643	Sigma mount (for Sigma Cameras) will not and there's no adapter as far as I know. But Sigma makes lenses with a Pentax mount. What are you looking at?

04-08-2010, 08:08 PM	#3
stl09 Veteran Member Join Date: Apr 2009 Location: St. Louis, MO Photos: Gallery Posts: 487 Original Poster	Looking for a longer lens and for some reason I thought the two mounts were compatible. Clearly I'm mistaken and glad I asked. I've been reading posts on the forum on Sigma 100-300 vs. 50-500mm vs. 150-500mm and just cannot decide which would be the best choice. I recently picked up the original version of Sigma 70-200 f2.8 and what a beautiful lens. Thanks for the quick reply.

04-08-2010, 08:11 PM	#4
Peter Zack Pentaxian Moderator Emeritus Join Date: May 2007 Location: Edmonton Alberta, Canada Photos: Gallery \| Albums Posts: 10,643	All of those lenses are available in Pentax mounts. I assume you found one of them on Sigma mount?

04-08-2010, 08:14 PM	#5
stl09 Veteran Member Join Date: Apr 2009 Location: St. Louis, MO Photos: Gallery Posts: 487 Original Poster	yes and the price didn't seem bad. There just isn't many of these in the pentax mount or at least that I can find.

04-08-2010, 09:09 PM	#6
Peter Zack Pentaxian Moderator Emeritus Join Date: May 2007 Location: Edmonton Alberta, Canada Photos: Gallery \| Albums Posts: 10,643	Well maybe used not many but they are all available new.

04-08-2010, 10:33 PM	#7
Pentaxor Veteran Member Join Date: May 2009 Location: Vancouver, B.C. Photos: Gallery Posts: 6,513	Sigma 150/2.8 <<<<----- I hate Sigma for not making one for the Pentax mount.

04-08-2010, 11:10 PM	#8
little laker Veteran Member Join Date: Sep 2006 Photos: Gallery Posts: 5,697	Originally posted by stl09 yes and the price didn't seem bad. There just isn't many of these in the pentax mount or at least that I can find. They're harder to find in SA (Sigma) mount used Originally posted by Pentaxor Sigma 150/2.8 <<<<----- I hate Sigma for not making one for the Pentax mount. Forget the 150mm f2.8, I'd like to see Sigma make a 135mm f1.8 or faster.

04-08-2010, 11:13 PM	#9
Pentaxor Veteran Member Join Date: May 2009 Location: Vancouver, B.C. Photos: Gallery Posts: 6,513	Originally posted by little laker Forget the 150mm f2.8, I'd like to see Sigma make a 135mm f1.8 or faster. and how much do you think that would cost?

04-09-2010, 12:18 AM	#10
little laker Veteran Member Join Date: Sep 2006 Photos: Gallery Posts: 5,697	Originally posted by Pentaxor and how much do you think that would cost? If they made it I would think somewhere between $1,200 and $1,500 US.

04-09-2010, 12:59 AM	#11
Pentaxor Veteran Member Join Date: May 2009 Location: Vancouver, B.C. Photos: Gallery Posts: 6,513	Originally posted by little laker If they made it I would think somewhere between $1,200 and $1,500 US. I hope that your prophecy comes true. I would just wonder how much the Sigma 85/1.4 would cost if that 135 is selling around the price bracket that you mentioned.

04-09-2010, 01:10 AM	#12
little laker Veteran Member Join Date: Sep 2006 Photos: Gallery Posts: 5,697	Originally posted by Pentaxor I would just wonder how much the Sigma 85/1.4 would cost if that 135 is selling around the price bracket that you mentioned. The Sigma world is expecting around the $800.00 - $850.00 street price, however that's just entirely speculation at this point. I honestly don't know if Sigma's even made any test units yet. Although they'll be coming soon.

04-09-2010, 06:13 PM	#13
Pentaxor Veteran Member Join Date: May 2009 Location: Vancouver, B.C. Photos: Gallery Posts: 6,513	Originally posted by little laker The Sigma world is expecting around the $800.00 - $850.00 street price, however that's just entirely speculation at this point. I honestly don't know if Sigma's even made any test units yet. Although they'll be coming soon. I think I would buy one at that price point. seems a good price point considering that they want to get some share of the market against the FA77.