A7R IV as wildlife camera to save weight?

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Iron Eagle
Iron Eagle Regular Member • Posts: 161
A7R IV as wildlife camera to save weight?

Let me start out by saying my current wildlife rig is a D850 with mainly the 500PF or 300PF + TC1.4.  I'm looking to go smaller and lighter, so naturally the new Sony comes to mind.

My D850 is 1015g, and with a lens its:

  • body + 500PF = 2475g
  • body + 300PF + TC (420mm) = 1960g
  • body + 200-500 = a whopping 3980g

The A7R IV is 665g

  • body + 100-400 = 2060g
  • body + 200-600 = 2780g

So it seems that going with the 200-600 and the Sony isn't going to do much for my weight savings.  In fact, the weight increase, but I also gain an extra 100mm.

The interesting thing is the 100-400.  It'd be roughly the same weight as my D850 + 300PF + TC, and I'd lose 20mm (no biggie).  However, since the A7R is 60 MP, I could actually crop more.  A DX crop from the D850 is about 20 MP, while a DX crop on the Sony is like 26 MP, I think.

Just wondering if others have thought about this.  I wonder how the 100-400 and 200-600 compare to Nikon's 500PF?

Nikon D850 Sony a7R
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