600 F5.6 DO

Started 2 months ago | Discussions thread
arbitrage Regular Member • Posts: 458
Re: 600 F5.6 DO

H2ODoctor wrote:

.As a bird photographer, I wish Canon would make a 600mm F.6 DO. Looking at Nikon PF 500; the size and weight are fantastic. It is <10 inches and a shade over 3#s. How heavy would you expect a 600 F5.6 DO to be? 4#s? 4.5 #s?

This doesn't help with the weight guessing but Nikon did file a 600 f/5.6 PF patent at the same time as the 500PF and it was a 5cm longer lens. So that would be a good estimate for the length. Also the front element of 110mm...1cm wider than the 400DOII and the same as the 300/2.8.

The actual length in the patents will be longer than the physical lens as they are measured to the sensor plane.  But the 5cm difference would hold true relative to the know physical length of the 500PF.

https://nikonrumors.com/2018/02/01/the-latest-nikon-patents-400mm-500mm-and-600mm-f-5-6-phase-fresnel-pf-lenses.aspx/

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