EF 70-200mm f/2,8 L USM Versus EF 70-300mm f/4-5.6 L IS USM

[neuroanatomist]

I will be using it as a general purpose telephoto zoom as well as for portraiture. If I chose the 70-300, am I going to regret not having the f/2.8?

Hi Mark,

IMO, an f/4-5.6 lens doesn't deliver enough OOF blur for portraits, especially on an APS -C sensor. You'll only get decent OOF blur if you can put a *lot* of separation between your subject and the background. One option for portraits would be an 85mm f/1.8 - it's an excellent portrait lens on a crop body.

I agree that IS is a real benefit at the long end - unless you're shooting sports, you'll often be able to use much lower ISO with IS.

Personally, I like the combination of a slower zoom for general use with a fast prime for portraits and moving subjects in low light.

[Tack Sharp]

Hi Mark,

Personally, I like the combination of a slower zoom for general use with a fast prime for portraits and moving subjects in low light.

Thanks for this... I think this is good advise, makes a lot of sense.