Dave Williams
Well-known member
For a week or so I've been pondering whether to swap my sigma non os 120-300 for a Canon 400 5.6. As well as a 2x converter for the sigma I have canon 500f4 old type and 1.4 converter. Then I think for BIF is the 400 long enough, sometimes the 500 isn't! Birds are elusive critters, I'm going to the Farnes soon, will the sigma do the job?
I'll take the SX40 anyway and it is good to have a choice but what to do for the best?
On the Farnes 400mm is fine but for some things like the Arctic Terns it's probably too long. It's the one place a 70-200mm zoom is excellent for birds.