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10-01-2011, 05:13 AM   #61
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QuoteOriginally posted by janstew Quote

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
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QuoteOriginally posted by Edgar_in_Indy Quote
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
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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
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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
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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
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QuoteOriginally posted by GeneV Quote
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
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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
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QuoteOriginally posted by twitch Quote
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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