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CloseToEureka · 10-02-2011, 11:03 AM

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I bought this lens from a market, but can't find any information about it. It's a Sigma 200mm f3.5 prime. It has two focusing rings, one broader towards the bottom for main focusing (quick and macro) and a smaller ring towards the front element for fine focusing. This bit also includes a 'horizontal image size' and 'vertical image size' scale. It;s in great condition, hardly any signs of wear, smooth aperture blades and totally free from fungus. In terms of image quality its great stopped down but softer than a marshmallow when wide open (last pic).

Does anyone have any more info on this lens or used it previously?

\

Next to the 18-55 kit.

**boriscleto** · 10-02-2011, 11:20 AM

I'm pretty sure that that is a Sigma Y-S mount lens with the Nikon AI adapter. That's why it has 2 aperture scales.

YS Interchangeable Adapter Mounts, Y-S lens mount

There was no K-mount adapter for the Y-S, only M42.

**jatrax** · 10-02-2011, 02:08 PM

Might be a dental macro lens. Those usually have size scales internally.

**boriscleto** · 10-02-2011, 02:45 PM

Here is one on evilBay with the mount misidentified and about $150 too expensive.

SIGMA-XQ MC 200mm 1:3,5 in extremely good condition | eBay

**boriscleto** · 10-02-2011, 02:46 PM

Originally posted by jatrax

Might be a dental macro lens. Those usually have size scales internally.

Only if the dentist wants to hide how bad his patients teeth are.

CloseToEureka · 10-02-2011, 03:10 PM

Ah thank you! The one I have does have a k-mount adaptor as it fits on my ME Super and k-x though. Oh wow, I bought mine for £12, maybe I should follow suit and make a huge profit!

borno · 10-02-2011, 03:21 PM

That's kind of a cool effect wide open.

10-02-2011, 11:03 AM	#1
CloseToEureka New Member Join Date: May 2011 Posts: 13	Any info about this lens? Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. I bought this lens from a market, but can't find any information about it. It's a Sigma 200mm f3.5 prime. It has two focusing rings, one broader towards the bottom for main focusing (quick and macro) and a smaller ring towards the front element for fine focusing. This bit also includes a 'horizontal image size' and 'vertical image size' scale. It;s in great condition, hardly any signs of wear, smooth aperture blades and totally free from fungus. In terms of image quality its great stopped down but softer than a marshmallow when wide open (last pic). Does anyone have any more info on this lens or used it previously? \ Next to the 18-55 kit.

10-02-2011, 11:20 AM	#2
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	I'm pretty sure that that is a Sigma Y-S mount lens with the Nikon AI adapter. That's why it has 2 aperture scales. YS Interchangeable Adapter Mounts, Y-S lens mount There was no K-mount adapter for the Y-S, only M42. Last edited by boriscleto; 10-02-2011 at 02:50 PM.

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10-02-2011, 02:08 PM	#3
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,992	Might be a dental macro lens. Those usually have size scales internally.

10-02-2011, 02:45 PM	#4
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Here is one on evilBay with the mount misidentified and about $150 too expensive. SIGMA-XQ MC 200mm 1:3,5 in extremely good condition \| eBay

10-02-2011, 02:46 PM	#5
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Originally posted by jatrax Might be a dental macro lens. Those usually have size scales internally. Only if the dentist wants to hide how bad his patients teeth are.

10-02-2011, 03:10 PM	#6
CloseToEureka New Member Join Date: May 2011 Posts: 13 Original Poster	Ah thank you! The one I have does have a k-mount adaptor as it fits on my ME Super and k-x though. Oh wow, I bought mine for £12, maybe I should follow suit and make a huge profit!

10-02-2011, 03:21 PM	#7
borno Veteran Member Join Date: Nov 2006 Location: md-usa Photos: Gallery \| Albums Posts: 2,580	That's kind of a cool effect wide open.

Any info about this lens?

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