Canon 100-400mm V1 or 2X III extender with 70-200mm III for Safari?

Started 3 months ago | Questions thread
ffabrici Senior Member • Posts: 1,208
Tamron 100-400mm f/4.5-6.3 Di VC USD or extender with 70-200mm III for Safari?

Wendy6 wrote:

Hello - I just upgraded my camera and had to purchase new lenses. I have the 24-70mm L II and I just bought the 70-200mm L III. We had to postpone or Safari in Tanzania until this coming February so before then, I need to make a decision on which option will be best quality-wise for my safari shots when I need to zoom.

I just don't feel like I'd probably get a ton of use out of the 100-400 and I really can only afford the original version if I buy it. My other option is to purchase the 2X III extender to use with my 70-200mm III lens. I know that I will lose 2 stops in the aperture with the extender so I don't know if things will just sort of equal out using it with my 70-200 or would I get better image quality with the original 100-400mm lens?

I appreciate any thoughts on this. : )

The optimal solution is 100-400L II.

Second best and much cheaper is the Tamron 100-400mm f/4.5-6.3 Di VC USD

Third best is your 70-200L III with 1.4X III, where you will keep sufficient sharpness and fast AF. The bare 70-200 f/2.8 is very useful for morning and evening safari's in low light.

Forth best is your 70-200L III with 2X III, as I wouldn't recommend you to buy a 100-400L version 1 for a single safari only.

The 100-400L version 1 is an OK lens but it suffers from copy variation, which especially is visible from 300 to 400mm, where some copies are a bit soft. If you buy one, make sure you check it out properly at 400mm first.

I have done a safari in Tanzania with a 70-200L f/2.8 non IS plus a 2X II extender on a 1DMIII and the results were OK but not stellar and I stayed between f/8 to f/11 if at all possible.

I hope it helps - good luck with your decision and safari.

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