75-300 vs. 100-300

[hhh_hhh]

I currently have an APS IX camera with a 24-85mm lense and I would like to get a bigger zoom lense, I am trying to decide between a 75-300, or a 100-400...whats the difference besides the 25mm extra

...what do you recommend? and why?...thank you

[isaac sibson]

Assuming you mean 100-300, as in the title...

 

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I'd go for the 100-300 USM rather than any of the 75-300s. The 100-

300 has (arguably) better optical quality, although there's not a

lot in it, but the use of the lens is so much better, with ring USM

and FTM. Alternatively, look into getting a second-hand 70-210 F3.5-

4.5 USM, since neither of the above lenses are stellar above 200mm.

[puppy_face2]

I agree with Isaac, the EF 100-300 4.5-5.6 USM is a better all around telezoom

than any of the 75-300 versions: much faster and more accurate AF, FT-M,

distance window and more compact. It's pretty too (matches the design of the

24-85). Moreover, with only 56% of the image area used APS compared to 35

mm, you use the sweetest and sharpest portion of the lens (the edges are where

these lenses fall a bit short).

[steve_dunn3]

http://www.photo.net/photo/nature/x-300

[leon]

Just read the article by Bob Atkinson on his web site.

He reviewed those lenses.

 

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I went thru the same process of chosing a while ago and

got 100-300/5.6L for ~300$ from BHphotovideo.com

 

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I don't care much about fast autofocus coming with USm, but

optically this lens is the BEST in x-300 range (non-pro).

 

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Leon