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Frogfish · 10-02-2011, 10:31 PM

Originally posted by Rondec

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).

pxpaulx · 10-04-2011, 05:20 AM

Originally posted by Frogfish

^^^

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!

**Rondec** · 10-04-2011, 11:02 AM

Originally posted by pxpaulx

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.

Ubuntu_user · 10-04-2011, 11:46 AM

My Sigma 30mm was definitely noisier than my limiteds.

pxpaulx · 10-04-2011, 11:48 AM

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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10-02-2011, 10:31 PM	#16
Frogfish Veteran Member Join Date: Dec 2009 Location: Shanghai Posts: 4,490	Originally posted by Rondec 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
pxpaulx Veteran Member Join Date: May 2009 Location: Twin Cities, MN Posts: 2,867	Originally posted by Frogfish ^^^ 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
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,666	Originally posted by pxpaulx 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
Ubuntu_user Veteran Member Join Date: Mar 2010 Photos: Gallery \| Albums Posts: 1,545	My Sigma 30mm was definitely noisier than my limiteds.

10-04-2011, 11:48 AM	#20
pxpaulx Veteran Member Join Date: May 2009 Location: Twin Cities, MN Posts: 2,867	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.

Sigma 30 f1.4 - HSM?

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