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Old Apr 6, 2010, 10:19 AM   #1
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Default Canon XSI Lenses education

Sorry about my ignorance here...I have the following lense that came with the camera

18-55

and

I have been told to look at the 55-250 lens as an addition.

My question, when would I need to use the 55-250, if am using the 18-55 as my everyday picture taking?

Cheers
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Old Apr 6, 2010, 10:48 AM   #2
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Quote:
Originally Posted by bulls3y3 View Post
My question, when would I need to use the 55-250, if am using the 18-55 as my everyday picture taking?
Cheers
You would use the 55-250 when your subject was a little further away. For example if you wanted a photo of the torso of a person - with the kit lens you'd need to be only a few feet away. With the 55-250 you could be several yards away. The extra focal length also helps create a shallower depth-of-field (DOF) where your subject is in focus but the background is blurred. So, if you framed that same photo with both lenses, and used the same aperture value (say f5.6) the shot taken at 250mm would have a more blurred background.
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Old Apr 6, 2010, 11:28 AM   #3
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Just moved this to the Canon dSLR lens section, where you were was for adding lenses to P&S cameras

I think John has answered the majority of this so will leave it for any other questions you might have.
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