View single post by Graham Whistler
 Posted: Mon Apr 2nd, 2018 19:08
Graham Whistler



Joined: Sat Apr 14th, 2012
Location: Fareham, United Kingdom
Posts: 1884
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 In my early postings reporting on tests I did with my then new 80-400mm plus the x1.4 with the D810 and later with D500, there was no loss of sharpness or speed of focus but there is a loss of 1 stop in speed.
The x1.4 works just as well with the big 500mm f4 lens. I think most early tele extenders were very poor but Nikon have got it right with this one, no complaints.



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Graham Whistler