Canon Big White Conundrum - 200-400 vs 400 f2.8 IS II vs 500 f4 IS II

AbChromatic wrote:

I’ve decided to take the plunge and get a big white to pursue my interest in wildlife photography. Like some other folks on this forum, I’m on the fence with regards to 200-400 vs 400 f2.8 IS II vs 500 f4 IS II. I would highly appreciate any recommendations, experiences etc with these big whites.

My current gear : 5d Mk III , 100-400, 24-105, 50

Interests : Wildlife and Wildscapes . Focus on Mammals , water birds (flamingos, storks, pelicans, etc) and some raptors. I have not developed a strong interest into small birds yet (hence ruling out 600).

Places of Interest (Typical Indian National Parks): Ranthambore, Kazirangha, Kabini, Kanha, Corbett etc and an occasional African park.

Based on my research (summing up info from other posts and lens reviews) there maybe two main options:

Option A
1) 1 body + 1 lens

Existing 5D Mk III + Buy a 200-400 built in 1.4X

Pros:
1) Convenience: Need to carry only one body and lens combo.

2) Versatility: ability zoom in and out without having to add/remove extenders and change lens in the field etc.

3) Need only 1 body so need to incur expense of second body or other lens.

Cons:
1) Not sure of the quality n level of detail at 560mm (with converter engaged). I have tried this lens once and had mixed feelings. Nonetheless, a very limited data point to build any strong opinions.

2) Weight is heavy.

3) Price Tag.

4) May need to buy a crop body as focal length is limited on the long end for most birds.

Option B
1) 2 bodies + 2 lens

Existing 5d Mk III + either 500 f/4 IS II (with the option of adding 1.4 or 2x extenders)
OR 400 f2.8 IS II (with the option of adding 1.4 or 2x extenders )

And

2nd Body Lens combo
Buy a new crop sensor 7D Mk I (or II when it comes out) + 70-200 f2.8 IS II (replacing existing 100-400)

Any input is highly appreciated.

in this case, my number one choice would be canon 400mm f2.8II with 1.4x and 2x TCs. canon 400 f2.8 is probably the finest prime there is. it is probably the best for birding, wild life, and sports. i am not sure about 200-400 tele. i think you'll get tired of it fast. it is not long enough and i am certain once you engage the 1.4x TC, the iq will take a hit much worst than the 400 f2.8II prime with TC. i have the canon 600 f4.0II prime which is fantastic but the price is too steep and i wouldn't use a TC with it my 2cent.

cheerz.