I have a Bigma for my K-M Maxxum 7D and am pleased as punch with it.
Other than the Popeye forearm and ruined back from horsing that beast
around, that is...

Having that 10:1 zoom range is a real plus when dealing with large and
small planes, close and distant fly-bys and taxiing, etc.

Image quality is pretty darned nice, though I am optically challenged
as a bat so my opinion may not be worth all that much.

I will post a series of shots taken with the above rig just last
weekend under the heading "Sentry Eagle Nighthawk" in a few
minutes|hours|days|eons.

Thanks for the feedback Bob... looking forward to seeing the results
whenever you can post them...

Cheers

Peter D Evans - LEMB Administrator
LEMB - Luftwaffe Experten Message Board
http://www.luftwaffe-experten.org