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 Post subject: DC Lens
PostPosted: Thu Jan 13, 2011 10:18 am 
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I have noticed that the Canon EOS 500D is now being offered with the DC Lens.

What is it?

Mine is an EF 18-55mm IS.

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PostPosted: Thu Jan 13, 2011 10:25 am 
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I gather this is the one without image stablisation.

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 Post subject:
PostPosted: Thu Jan 13, 2011 10:45 am 
I believe its the type of focussing motor inside the lens, as in there is micro USM, ring type USM, and I think canon use a so called DC motor in some of their lenses.

I wouldnt worry about it too much

Edit: I could be wrong, in fact Im probably wrong


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 Post subject:
PostPosted: Thu Jan 13, 2011 10:48 am 
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It is cheaper.

I wasn't planning on changing my lens just for the motor or whatever it is though, but was curious.

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 Post subject:
PostPosted: Thu Jan 13, 2011 12:31 pm 
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Got a link? DC is a Sigma designation, which is their rough equivalent to EF-S.

I haven't heard Canon use DC for their AF motors, which range from MM (micro motor), AFD (arc form drive), and the two types of USM.

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Canon DSLRs: 7D2, 7D1, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 10-18, 15-85
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 50/1.4A, 150 macro, 120-300 f/2.8 OS
Compacts: Sony HX9V, Fuji X100.


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 Post subject:
PostPosted: Thu Jan 13, 2011 12:53 pm 
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Popo wrote:
Got a link?


Yes - Click Here

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Lenses: EFS 18-55mm IS, EF 50mm F/1.8 II

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 Post subject:
PostPosted: Thu Jan 13, 2011 1:04 pm 
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That looks like Jessops at best putting ambiguous data on their web page bundle.

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Canon DSLRs: 7D2, 7D1, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 10-18, 15-85
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 50/1.4A, 150 macro, 120-300 f/2.8 OS
Compacts: Sony HX9V, Fuji X100.


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 Post subject:
PostPosted: Thu Jan 13, 2011 1:06 pm 
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Popo wrote:
That looks like Jessops at best putting ambiguous data on their web page bundle


or creating their own bundles.

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Lenses: EFS 18-55mm IS, EF 50mm F/1.8 II

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 Post subject:
PostPosted: Thu Jan 13, 2011 1:39 pm 
Just googled it, I think it is a type of motor.

Quote from this is

Quote:
The difference is that it uses a DC motor instead of a USM to drive the AF


Or quote from this

Quote:
When "DC" is mentioned in the lens reference, this means that the lens AutoFocusing (AF) is driven by a "normal" DC motor.

These type of motors are, in comparison to the UltraSonicMotor (USM), slower and noiser. These motors are mainly in the entry level type lenses.


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