4 comments on “Review: Canon 300mm f/2.8 vs 400mm f/2.8 – Part 2

  1. Pingback: Review: Canon 300mm f/2.8 vs 400mm f/2.8 – Part 3 | Shutter Warrior

  2. Next review include the Canon 200 F2 USM IS…Would like to see the difference with the 1.4 TC III
    and 2.0 TC III . 280 with the TC 1.4 III and 400 with the TC 2.0 III
    Lets have a re match????

  3. There are a few things to consider here.
    – The Canon 200 F2 USM IS has been out of production for a while
    – It is still the first generation and a fairly dated model, a great lens I’m sure
    – I suspect the 70-200mm f/2.8 IS Mark II and III are likely more advanced and sharper due to several generations of advancements in optical technology. They also collect almost as much light at 200mm.
    – I really do not recommend using teleconverters on any of these lenses. TCs are an absolute last resort. What they do is magnify the flaws in the lens so the older the lens, the lower the resolution. Also keep in mind image sensors have much higher pixel densities these days which will only further expose the magnified flaws.
    – You are probably better off getting a 5DsR and cropping, rather than using a TC.
    – The only lens I’ve seen out-resolve my 5DsR is the 300mm f/2.8 Mark II. That lens has the absolute latest tech, sub-warelength coatings etc, etc. I do own this lens.
    – I could probably do a TC/noTC comparison on that lens for you if you like. For the price of the 200mm f/2, I would just get the 300mm f/2.8 Mark II. It is Canon’s best lens yet.

    Here is my review of the 2X Extender III I did a while back. It discusses the challenges with TCs and things to consider.

    Thanks for stopping by. I hope this helps.


  4. thanks for this information. What can you say about the Canon 400 DO IS II?? For motor sports and wild life ?? With the 1.4 III and the 2.0 iii ?? Will this lens be on par with the 300 2.8 IS II??
    I know the canon 400 do is ii is one stop slower f-4 vs f 2.8 ??
    many thanks
    john joulakian

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