new lense

[nicaev]

good Afternoon.

could someone advise me if I require I/S on a lens for taking pictures of trampolining.
I currently take pictures of my daughter trampolining club with a sigma 70-300mm and a sigma 28-70mm, i am looking to purcahse a canon lens either 70-200mm f2.8 or f4 not sure which would be better.Wold it make much difference if i went for the f4 because of the price.
i have to use my iso setting at 800 or 1600 because I am not allowed to use flash.Any advise please,

p.s I am also looking at a sigma 20-200mm f2.8 (os)

thankyou
Nigel

[Cathus]

could have sworn I just replied to this....

[hagz]

lol what did you say then?

[hagz]

my answer is that it can make a good difference but probably depends on how well the lens implements it.

[Cathus]

ah, I thought I wasn't going mad, the OP posted this twice, rather than repeat myself check out the other post:

http://www.photoradar.com/forums/sho...1121#post41121

[nicaev]

Sorry to have wasted your time,posted it twice thinking I may have placed it in the wrong section.New to this type of chat would rather speak to someone face to face or on the telephone.

[donoreo]

Originally Posted by nicaev

Sorry to have wasted your time,posted it twice thinking I may have placed it in the wrong section.New to this type of chat would rather speak to someone face to face or on the telephone.

Since you are talking about Canon, this is correct. However, since there is a Lens section, it would be correct there too.