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Carlton
PostPosted: Tue Mar 09, 2010 3:44 pm 
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Looks like Tamron has finally entered into the race for fast focusing with their new USD (Ultrasonic Silent Drive) system.

http://tamron.com/news/35mm/70300vc_60th_2010.asp
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PotatoEYE
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PostPosted: Tue Mar 09, 2010 3:53 pm 
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Funny abbreviation they are using :lol:
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ottodc6
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PostPosted: Tue Mar 09, 2010 4:02 pm 
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Can we please have that on the 17-50? :roll:
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chopper
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PostPosted: Tue Mar 09, 2010 4:13 pm 
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ottodc6 wrote:
Can we please have that on the 17-50? :roll:


considering the 17-50 non VC seems to be better than the new VC version, maybe you dont want Tamron tinkering with that lens any further. The non VC 17-50 works pretty good as it is.
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Carlton
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PostPosted: Tue Mar 09, 2010 4:16 pm 
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I wouldn't be surprised if this sparks a whole new line of lenses from Tamron. 24-70f2.8 USD VC, 70-200f2.8 USD VC, 14-24f2.8 USD VC, 300f2.8 USD VC etc etc.
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taob
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PostPosted: Tue Mar 09, 2010 6:07 pm 
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PotatoEYE wrote:
Funny abbreviation they are using :lol:

Yeah, the hold up was probably the marketing department trying to come up with an abbreviation that hasn't already been used. :lol: So now we have USM (Canon), SWM (Nikon), SSM (Minolta/Sony), SDM (Pentax), HSM (Sigma), and USD (Tamron). Anyone else?
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ottodc6
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PostPosted: Tue Mar 09, 2010 8:40 pm 
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pretty good eh, I think the non-vc version will be perfect with USM. VC is the last thing this lens needs. What it needs is a USM so it doesn't scare the crap out of everyone every time I try to focus. :lol:

chopper wrote:
ottodc6 wrote:
Can we please have that on the 17-50? :roll:


considering the 17-50 non VC seems to be better than the new VC version, maybe you dont want Tamron tinkering with that lens any further. The non VC 17-50 works pretty good as it is.
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sabesh
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PostPosted: Tue Mar 09, 2010 9:47 pm 
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taob wrote:
Yeah, the hold up was probably the marketing department trying to come up with an abbreviation that hasn't already been used. :lol: So now we have USM (Canon), SWM (Nikon), SSM (Minolta/Sony), SDM (Pentax), HSM (Sigma), and USD (Tamron). Anyone else?

LOL! :lol:
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PotatoEYE
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PostPosted: Tue Mar 09, 2010 9:50 pm 
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taob wrote:
PotatoEYE wrote:
Funny abbreviation they are using :lol:

Yeah, the hold up was probably the marketing department trying to come up with an abbreviation that hasn't already been used. :lol: So now we have USM (Canon), SWM (Nikon), SSM (Minolta/Sony), SDM (Pentax), HSM (Sigma), and USD (Tamron). Anyone else?


Looks like time well wasted, and they have tragically failed...USD has been used for quite some time in monetary field :D
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Carlton
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PostPosted: Tue Mar 09, 2010 10:07 pm 
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PotatoEYE wrote:
Looks like time well wasted, and they have tragically failed...USD has been used for quite some time in monetary field :D


Maybe it's a sign of things to come with their new pricing? Maybe someone had too much LSD
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PotatoEYE
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Carlton wrote:
PotatoEYE wrote:
Looks like time well wasted, and they have tragically failed...USD has been used for quite some time in monetary field :D


Maybe someone had too much LSD


You can never have too much of it :lol:
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mikefellh
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PostPosted: Wed Mar 10, 2010 7:03 am 
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Olympus has SWD (Supersonic Wave Drive), not to be confused with SSWF (Supersonic Wave Filter).

Leica has some really weird names for their lens types, Summilux, Vario-Elmar, Vario-Elmarit??? Now THAT is confusing!
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hotwire
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PostPosted: Thu Mar 11, 2010 9:46 am 
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Sonic motors to not necessarily mean faster focusing. F still equals MA. The benefits of them are typically the DMF (direct manual focus), and the silent factor.

As an example, the Minolta 80-200/2.8 from 1985 (screwdriver), on the right body is known to AF faster than the 70-200/2.8 SSM. The Nikon 50 AF D screwdriver is regarded to be faster focusing than the 50 AF G. The 85L is USM, but still takes a while to move all that glass.
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