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Canon 800mm f5.6 L

Discussion

10 replies
Posted by Sean Bolton on October 15, 2007 at 4:54 PM
Interesting press release on Canon USA

Canon 800mm Press Release

Looks genuine, unless some clever geezer has hacked the Canon website.

800mm f5.6L seems an odd choice given the 600+1.4x TC is the same (slightly longer) focal length.

Maybe it uses DO? and is smaller/lighter than the 600mm (but not cheaper!)

cheers

Sean
Posted by Tom_W on October 15, 2007 at 5:17 PM
It's on Rob Galbraith along with a 200mm F2. I don't think it is DO.

T
Posted by Sean Bolton on October 15, 2007 at 5:19 PM
Tom

Is your 600mm for sale? :wink:

cheers

Sean
Posted by Dave Courtenay on October 15, 2007 at 5:32 PM
Well they have obviously looked at Nikons line up with the 200F2 lets hope they announce a 200-400F4 SOON
Posted by Paul Gibbs on October 15, 2007 at 5:32 PM
Hmm Sigma finally have some competition!
Posted by Tom_W on October 15, 2007 at 5:48 PM
Sean,

Nope, I have a 1.4 converter:wink: and if it is DO (which would be a mistake given what I have seen of the 400mm) I definately ain't interested.

T
Posted by Elliott Neep on October 16, 2007 at 4:08 AM
Interesting news, but I think I'll stick with my 600.
Posted by Andy Astbury on October 16, 2007 at 4:28 AM
Can't really see the point - if it was f4 then that might be different :wink:

Now their 1200mm f5.6 is a bit of a monster and definately worth asking the missus for at Christmas :biggrin: :biggrin:
Posted by Nigel Blake on October 16, 2007 at 5:28 AM
If it was an f4 then might I raise my eyebrows a little, it would be interesting to know what the minimum focus distance is; but the longer the lens, the more wobbly air there is between you and the subject!
Posted by Phil Shaw on October 16, 2007 at 8:32 AM
Minimum focus distance is supposed to be 6.0m. For comparison, the 600/f4 is 5.5m and the 500/f4 is 4.5m. This should give a maximum magnification of 0.15x, like the 400/f2.8, as opposed to the 0.12x of the 500 and the 600.

The image quality is expected to be better than the 600/f4 according to the official Canon release.

Size and weight are the critical features imo.
Posted by John Swift on October 16, 2007 at 9:15 AM
Also consider that the use of teleconverters does slow down your auto focus so one might assume that this lens would be more nimble at this focal length than a 600 + 1.4x.
I believe that Canon suggest a reduction in lens drive speed of somthing like 50% for a 1.4x and 75% for a 2x depending on the lens in question.

Regards

JohnS