100-400 paired with A9/1.4x TE or A7IV in crop mode?

Started 3 months ago | Discussions thread
OP Geekapoo Senior Member • Posts: 2,582
Re: 100-400 paired with A9/1.4x TE or A7IV in crop mode?

dcstep wrote:

SafariBob wrote:

Maybe the canon r5 + 100-500 coming in at ~2100g would be the best combo for you.

also consider the a7c + 200-600 but it would be 2600g - saving 7 dollar pr gram though.

as a wild alternative, the a6100 w 200-600 at 2500g

otherwise, yes, think a7riv makes the most sense now.

Adapted Canon EF lenses are hit and miss on Sony bodies, particularly with the longer lenses. For BIF you need exceptional AF.
The a9 will be superior to the a7RIV for BIF. Superior AF trumps resolution every time.

I don't think one needs exceptional AF for BIF..it just increases (sometimes dramatically) the number of keepers in a shooting session.

Also relevant is the frequency with which a BIF opportunity occurs (better if % keepers is low).

Overall, I think reach and resolution are more important than AF (not that AF is not important) though obviously it's a very subjective thing. AN inability to acquire AF is a non-starter but there are MANY examples of great BIF with so-so AF cameras.

 Geekapoo's gear list:Geekapoo's gear list
Sony RX100 Fujifilm XF 16mm F1.4 R WR Sony RX10 IV Fujifilm X-T3 Sony a7R IV +11 more
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