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Edgar_in_Indy · 10-01-2011, 05:13 AM

Originally posted by janstew

The older 50-150 but the data will tell you otherwise

no idea why

My 50-150mm HSM II shows up in the EXIF in Adobe CS5 as "Sigma 70-200mm F2.8 EX DG Macro HSM II"

**Rondec** · 10-01-2011, 05:16 AM

Originally posted by Edgar_in_Indy

My 50-150mm HSM II shows up in the EXIF in Adobe CS5 as "Sigma 70-200mm F2.8 EX DG Macro HSM II"

Lens makers put an identifying number in the lens chip that is read by the software to identify the lens. Unfortunately, Sigma has a couple of lenses where they use the same identifier number. It can be rechipped to get the correct identification if it is a problem.

Edgar_in_Indy · 10-01-2011, 05:54 AM

I've been thinking about sending the lens in to Sigma to get the firmware updated so it will focus in live-view on the K-x, so maybe I can also mention the EXIF issue to them if I ever send it in.

janstew · 10-01-2011, 01:49 PM

It doesn't really worry me other then in situations like this..............but it is an awesome lens

GeneV · 10-02-2011, 06:38 PM

The Sigma 70-200 is a DG lens, which covers a full 135 frame. Does anyone know if the newer, larger 50-150 also FF? I still shoot some film, and this could be an advantage. The lug factor is pretty significant, though with the larger size.

Edgar_in_Indy · 10-02-2011, 07:48 PM

Originally posted by GeneV

Does anyone know if the newer, larger 50-150 also FF?

You would think that with its huge size increase it would be FF compatible, but Sigma's website says it's "For use with smaller chip APS-c cameras only". So apparently the big increase in size and weight is only to accommodate the OS system.

twitch · 10-02-2011, 08:02 PM

I can't understand why Sigma chose to wrap a 50-150 APS-C only lens in the same lens housing as a 70-200 Full Frame lens. Cost saving??

Edgar_in_Indy · 10-02-2011, 08:46 PM

Originally posted by twitch

I can't understand why Sigma chose to wrap a 50-150 APS-C only lens in the same lens housing as a 70-200 Full Frame lens. Cost saving??

The whole affair is very bizarre. I can't imagine they'll sell many of the new 50-150mm. I love my 50-150mm because of what it offers in a small size. But if I was going to lug around a lens as big as a 70-200mm, then I would just buy a 70-200mm.

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10-01-2011, 05:13 AM	#61
Edgar_in_Indy Veteran Member Join Date: May 2010 Location: Indiana, USA Photos: Gallery Posts: 2,685	Originally posted by janstew The older 50-150 but the data will tell you otherwise no idea why My 50-150mm HSM II shows up in the EXIF in Adobe CS5 as "Sigma 70-200mm F2.8 EX DG Macro HSM II"

10-01-2011, 05:16 AM	#62
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,666	Originally posted by Edgar_in_Indy My 50-150mm HSM II shows up in the EXIF in Adobe CS5 as "Sigma 70-200mm F2.8 EX DG Macro HSM II" Lens makers put an identifying number in the lens chip that is read by the software to identify the lens. Unfortunately, Sigma has a couple of lenses where they use the same identifier number. It can be rechipped to get the correct identification if it is a problem.

10-01-2011, 05:54 AM	#63
Edgar_in_Indy Veteran Member Join Date: May 2010 Location: Indiana, USA Photos: Gallery Posts: 2,685	I've been thinking about sending the lens in to Sigma to get the firmware updated so it will focus in live-view on the K-x, so maybe I can also mention the EXIF issue to them if I ever send it in.

10-01-2011, 01:49 PM	#64
janstew Veteran Member Join Date: Dec 2009 Location: Forbes Central West NSW Posts: 311	It doesn't really worry me other then in situations like this..............but it is an awesome lens

10-02-2011, 06:38 PM	#65
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	The Sigma 70-200 is a DG lens, which covers a full 135 frame. Does anyone know if the newer, larger 50-150 also FF? I still shoot some film, and this could be an advantage. The lug factor is pretty significant, though with the larger size.

10-02-2011, 07:48 PM	#66
Edgar_in_Indy Veteran Member Join Date: May 2010 Location: Indiana, USA Photos: Gallery Posts: 2,685	Originally posted by GeneV Does anyone know if the newer, larger 50-150 also FF? You would think that with its huge size increase it would be FF compatible, but Sigma's website says it's "For use with smaller chip APS-c cameras only". So apparently the big increase in size and weight is only to accommodate the OS system.

10-02-2011, 08:02 PM	#67
twitch Veteran Member Join Date: Nov 2009 Posts: 4,571	I can't understand why Sigma chose to wrap a 50-150 APS-C only lens in the same lens housing as a 70-200 Full Frame lens. Cost saving??

10-02-2011, 08:46 PM	#68
Edgar_in_Indy Veteran Member Join Date: May 2010 Location: Indiana, USA Photos: Gallery Posts: 2,685	Originally posted by twitch I can't understand why Sigma chose to wrap a 50-150 APS-C only lens in the same lens housing as a 70-200 Full Frame lens. Cost saving?? The whole affair is very bizarre. I can't imagine they'll sell many of the new 50-150mm. I love my 50-150mm because of what it offers in a small size. But if I was going to lug around a lens as big as a 70-200mm, then I would just buy a 70-200mm.

Returned my DA* 50-135mm. What next?

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