had a play with the sigma 1.4tc today that i recently acquired from steve dawes .this is a lapwing at 840mm handheld i.e sigma 150-600mm + plus 1.4tc .i,m very pleased with the results although it did give a higher percentage of also ran shots .and would probably be better on the tripod .
resolution wise i can't fault it and it hasn't seemed to affect focus speed one little bit ,in fact later in the day i was doing and getting marsh harriers in flight with it .to far away to publish but at least its worked .
50shades of green by jeff and jan cohen, on Flickr
resolution wise i can't fault it and it hasn't seemed to affect focus speed one little bit ,in fact later in the day i was doing and getting marsh harriers in flight with it .to far away to publish but at least its worked .
50shades of green by jeff and jan cohen, on Flickr
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