Alan C wrote:
OK, question answered. The Bigma beats the 170-500 hand down. You can easily give Paul & Jack a run for their money.
Thanks Alan. Don't read too much into the comparison. The shots with the Bigma were on a different day, in better light, on a 24MP APS body rather than what would be 18MP. I just did a quick check, with the bigma/K-3 a blackbird was about 1700 pixels long, with the 55-300 it was about 800 pixels long, so on tight crops I get about 4 times the number of pixels, which works out about right ((500/300) * (24/18))^2.
However, the bigma is a damn fine lens for the money, I picked mine up used, along with the 50/2.8 macro for $1000. The downsides to it are pretty harsh bokeh, it's not weather sealed and it's only f/6.3 at the long end.
As I write this, there's a blackbird nearby singing. LRC
Alan C -----Original Message----- From: Larry Colen Sent: Saturday, February 11, 2017 5:25 AM To: Pentax-Discuss Mail List Subject: GESO Not capable of mach 3+ I wandered out to the river today, but wasn't able to get a hummer. The bigma on the K-3 did a lot better with tight crops on small birds than did the 55-300. No hummingbirds, but quite a few blackbirds in the cattails http://www.flickriver.com/photos/ellarsee/sets/72157678627942070/ I was also amused by the jail for lost balls: https://www.flickr.com/photos/ellarsee/32449329990/
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