If Nikon made a 800mm AF lens

[Pao Dolina]

Would you switch from your Canon?

Also based on my calculations for Nikon to match the FL & reach of a 1D4 + 800 with the D3S they would need to have a 1,383.8mm lens at f/5.6. To put things into context the 1200mm f/5.6L is 16.5kg. :)

[john j. henderson]

But what if you couple with a D300s with 1.5 factor; at lower ISOs, the D300s has proved to be just as good IQ

[Desmond Chan]

Would you switch from your Canon?

I doubt it.

Remember many consider the prices of Nikon the deal breaker?

[Harshad Barve]

You will have to have multiple mortgauge and selling lot of assets to buy that one from Nikon if they make :p

[Markus Jais]

I can imagine Nikon offering such a lens in the future but I doubt Canon photographers would switch as there already is such a lens for Canon. I wouldn't.

I think a 5.6/200-600 VR or 4/200-500 VR would make more people think about switching.

Markus

[Phillip Tomkinson]

No I will stick with my 800 Sigma HSM EX DG in nikon fit thanks.

Phil.

[Joseph Kurkjian]

If Nikon offered the 800 and Canon didn't then I would have picked up a D300 to go along with the Nikon 800; that purchase would have been an addition ... I definitely would not have switched camps because the 70-200 f/4 IS, 100-400, and 400 f/5.6 all work great on my 50D bodies (I'm a very happy camper).

If OTOH both Nikon and Canon offered the 800 then I would have based my purchasing decision on predicted MTF performance and street price (taking into account what Nikon's five year warranty is worth to "me").

Regards,

Joe Kurkjian

[Joseph Kurkjian]

I think a 5.6/200-600 VR or 4/200-500 VR would make more people think about switching.

Markus

I certainly agree with your thought about the 200-600 f/5.6 VR as representing something to lust for; I'd purchase one in a heartbeat along with a D300 but it would only be an addition to the bag and in no way entice me to change from Canon to Nikon.

Regards,

Joe Kurkjian

[Dave Mills]

It would probably sell for the price of a whole Canon system...