Hi all
I am in the market for a 10-20 myself. I will be using mine to hopefully get some whale shark pictures later this year
What I would like to ask is would the extra f stop on the canon not be worth £50 ?
The sigma is 4.5-5.6
The canon is 3.5-4.5
I am thinking, in my case loss of light underwater & to the OP wouldn't a faster shutter speed help with motor sport shots ?
Thanks Ken