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10-02-2011, 10:31 PM   #16
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QuoteOriginally posted by Rondec Quote
I bought one of these recently from B and H and it definitely didn't (doesn't) have HSM and it wasn't available at my time of purchase. I don't know that HSM would add much to lens, except to increase the price. The screw drive isn't particularly loud and it is pretty speedy.
^^^

It's a 30mm not a 300mm. It's very fast screw-driven and doesn't need HSM IMHO. Great lens absolutely worth buying (HSM or not).

10-04-2011, 05:20 AM   #17
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QuoteOriginally posted by Frogfish Quote
^^^

It's a 30mm not a 300mm. It's very fast screw-driven and doesn't need HSM IMHO. Great lens absolutely worth buying (HSM or not).
The audible noise is a big factor in screwdrive vs HSM as well - HSM is even quieter than SDM - it is virtually silent, and fast. While speed may not be a factor, noise still may be!
10-04-2011, 11:02 AM   #18
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QuoteOriginally posted by pxpaulx Quote
The audible noise is a big factor in screwdrive vs HSM as well - HSM is even quieter than SDM - it is virtually silent, and fast. While speed may not be a factor, noise still may be!
I suppose so, but none of the Pentax limited lenses have SDM either. Anyway, I really don't think it is that noisy -- I have no problem shooting at weddings, etc with this lens.
10-04-2011, 11:46 AM   #19
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My Sigma 30mm was definitely noisier than my limiteds.

10-04-2011, 11:48 AM   #20
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Don't get me wrong, I think it is a great lens too (why else would it be in my bag?). I would take any lens in their HSM over screwdrive (or SDM) for both the speed and silence, I doubt it would add an appreciable amount to the lens cost as they already put it in all of their canon/nikon equivalents.
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