A9 with adapted Canon 400 f4DO II + 1.4X/2X TC Performance

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Subham New Member • Posts: 4
A9 with adapted Canon 400 f4DO II + 1.4X/2X TC Performance

I mainly shoot bird and occasional mammals using canon 5d IV + 400 f4 DO II + 1.4 X iii most of the times. The combo works pretty fine for perched birds & BIF to some extent. Recently I got TC 2X III, which performs satisfactory with stationary bird, but hunts / loses tracking for BIF.

Recently giving a thought to move to Sony, but I love my 400 f4 DO II and there are no such replacements Sony’s world.

I am looking for some real-life reviews, if Sony A9 performs a better with teleconverters and adapted canon 400 f4 DO II.

Suggestions / Thoughts / Reviews please.

Canon EF 400mm F4 DO IS II USM Canon EOS 5D Mark IV Sony a9
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