Originally Posted by bburns223
I wouldn't say astronomical but it would be difficult for sure. If you were to use aCanon 800mm and a 1D IV and the skill of Arthur Morris or Alan Murphy they would probablly get Nat Geo quality shots, abeit at a low keeper rate.
A cheap way out is to use a 2X extender to gain some more focal length, butIQ will suffer a bit and AF will be slower. But overall would be better.
John.




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