I have a 800, 300 and 200

[Pao Dolina]

800/5.6L, 300/2.8L IS and 200/2L IS with the 1.4x and 2x extender. I shoot wildlife during the day and quit when it is night.

So come the Mark IIs of the 400, 500 and 600 do you think I'd need them?

[Axel Hildebrandt]

I don't see any need for a 400 and 600. If it is in your budget the 500 might come in handy at times.

[Doug Brown]

Definitely not the 400. But it sure is nice to have some glass over 500mm that is faster than f/5.6. I own both the 500 and 600, and there are times when they both come in handy. If I had to choose one and I already owned the 800, I'd go with the 500.

[Alfred Forns]

Would go for the 500 Probably overall most useful !!!

[Pao Dolina]

I didn't think of it that way, thanks. What I dislike about the 600 and 400 are the weight. Other than that they're good optics. :)

[Vivek Khanzode]

Yep, weight it is.... Used to use 500 most of the time, now moved to 300 2.8 IS and I find that I am using it more. I will definitely get the 800 IS one day, but not the rest.

-- V

[Pao Dolina]

I'm asking what to prioritize for next generation gear.

Where I live Nikon and Pentax have piss poor support so the Canon's the only game in town. Not to mention the local Nikon distributor's owners blocked my exit from a room so I do not want to invest in them. I am also heavily invested in the system so switching would be painful. Not to mention Canon has some FL that Nikon doesn't have.