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Canon 200-600 f5.6 guesstimates
  
 
Tom_W
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p.4 #1 · p.4 #1 · Canon 200-600 f5.6 guesstimates


Canon has plenty of "value" lenses of various focal lengths. The 50/1.8 STM, 85/1.8 & 100/2, 70-300 IS, 70-300 IS II, a few others. The 50/1.4 is a bargain, even if it has a mediocre AF system.

I think that they need to offer something to compete with the other relatively low-priced big guns out there. They're quite capable of producing optically decent lenses at a competitive price. Whether they can do so at this size is a challenge, but if Siggy, Tammy, and Nikon can do it, then Canon ought to be able to do so also.

Now, Canon might see things differently - maybe there isn't enough potential sales volume in their eyes to support such a lens. That's their decision, and they know the market better than I. But my opinion is that they should offer up such a lens.



Oct 24, 2016 at 12:36 AM
arbitrage
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p.4 #2 · p.4 #2 · Canon 200-600 f5.6 guesstimates


I believe Canon can easily make a competitive 200-500 f/5.6 or a 150-600 f/6.3. What I don't believe is they can make a 200-600 f/5.6 and compete on size and cost with Nikon and Tam/Sig.


Oct 24, 2016 at 12:45 AM
Tom_W
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p.4 #3 · p.4 #3 · Canon 200-600 f5.6 guesstimates


I doubt that they'll go with f/6.3. The problem with Canon going to 6.3 would be that they have designed their teleconverter and AF system for f/5.6 and f/8. That extra third of a stop would require violating their own policy. I mean, technically, it would probably work, but that's putting just a little more tax on the AF system.

And yeah, a 600/5.6 will have the same diameter as the 300/2.8. Don't know how much heavier it would have to be compared to the class competitors. Obviously, as pointed out earlier, a little more glass up front than a 600/6.3 lens. Nikon chose to go to 500 and keep f/5.6. Sigma and Tamron went to 600 but kept the front element smaller and as a result, have an f/6.3 lens. Perhaps Canon will go with a 200-500 instead, much like Nikon. It would be a cost-containing compromise. And a size/weight saving move as well.



Oct 24, 2016 at 01:24 AM
RSHPhotography
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p.4 #4 · p.4 #4 · Canon 200-600 f5.6 guesstimates


If they can make a 200-600mm 5.6 IS, and keep it under $1800 or so, it would be a game changer. Canon's white glass is too expensive for many to get into.


Oct 24, 2016 at 03:12 AM
 

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alundeb
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p.4 #5 · p.4 #5 · Canon 200-600 f5.6 guesstimates


I see a lot of good points being made here, but making a Canon non-L 200-600 mm f/5.6 competitive is not that complicated. The case is that there is a lot of space between the Tam/Sig 150-600 f/6.3 and Canon 200-400 f/4+TC lenses, both regarding image quality and weight.

A 200-600 f/5.6 will of course be bigger and heavier than the Tam/Sig lenses, but the image quality can be significantly better.

And it may still not be quite as good as the Canon 200-400, but it may be significantly lighter. The 200-400 is very heavy for it's max focal length / aperture.

So a Canon 200-600 f/5.6 will beat the Tam/Sig on image quality (and of course 1/3 stop wider aperture) and it will beat the 200-400 on weight and price. There is a place for it.

There is a range of possible quality/weight/price points, and my guesstimate is:

2.8 kg (that is 0.8 kg lighter than the Canon L)
$3900 (that is 35% of the Canon L)
Image quality at 600 mm like the Canon 70-300 non L at 300mm. (That is significantly better than the Tamron G2 at 600mm)



Oct 24, 2016 at 07:18 AM
arbitrage
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p.4 #6 · p.4 #6 · Canon 200-600 f5.6 guesstimates


I also don't think they will go 6.3 as they would be admitting to fudging around there f/5.6 AF limits on certain cameras.

I think the most likely thing will be a clone of the Nikon. If that is the case I don't see myself foregoing the 100-400II +1.4TCIII even for the extra f-stop at 500mm. Heck, I have the 200-400 sitting around if I need extra stops

And why hasn't anyone quizzed the poster who claimed to have seen the lens in the field? I'm sure if that story is true he could give us some more details on size and maybe the focal length.



Oct 25, 2016 at 12:07 AM
RustyBug
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p.4 #7 · p.4 #7 · Canon 200-600 f5.6 guesstimates


arbitrage wrote:
I believe Canon can easily make a competitive 200-500 f/5.6 or a 150-600 f/6.3. What I don't believe is they can make a 200-600 f/5.6 and compete on size and cost with Nikon and Tam/Sig.


+1 @ ^

Folks wanting bigger & better for same $$$ as smaller and lesser ...

One other thing to bear in mind is just how "true" the aperture might or might not be very true regarding how it is very "centric" oriented and might include a lot of vignetting to achieve a given price point.



Oct 25, 2016 at 12:14 AM
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