Replacing 70-200 f4, 300 f4 w/ Sigma 100-300

Hey Gang -

I'm considering replacing both my 70-200 f4/L and 300mm f4/L lens with Sigma's new 100-300 f4 HSM. I played with the lens a little bit in a local camera store, and was amazed at the speed of the autofocus (no difference between the Sigma and the Canon lenses I have - Sigma perhaps even a touch faster), and after reading all the positive things about image quality,

My rationale:

• I don't think I'd be giving up anything (other than 30mm in focal length).
• I'd be reducing overall travel weight slightly, and would be able to get the range in a single lens
• I'd be able to use the difference in $$ (the Sigma lens would cost less than I'd sell the 2 lenses for) to buy another lens

I'm also considering doing the same thing, and going for a Sigma 24-70 2.8 Macro instead of my EF-S 17-85 IS. Then I'd add Canon's 10-22 lens

Does anyone see any flaw in my logic? Thoughts??

Ira

Ira Dworkin said:

Hey Gang -

Click to expand...

Member said:

I'm also considering doing the same thing, and going for a Sigma
24-70 2.8 Macro instead of my EF-S 17-85 IS. Then I'd add Canon's
10-22 lens

Click to expand...

Giving up IS?????!!!!!

Emil Pozar said:

Giving up IS?????!!!!!

Click to expand...

Yeah, if I get rid of the 17-85IS in favor of the Sigma 24-70 2.8. I figure that the IS doesn't have as much an advantage in the shorter focal lengths, and the faster speed of the Sigma lens should more than make up for it.

ira