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Old 26-02-2013, 09:17 PM
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alistairsam
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alistairsam is offline
 
Join Date: Nov 2009
Location: Box Hill North, Vic
Posts: 1,820
Hi,
It will be good to see the difference.
I was a bit surprised to see that my MKII works really well even at 58m as opposed to 55mm.
one plus on the MKIII would be the 44mm clear aperture as opposed to the 38mm of the MKII. not sure if that would reduce vignetting on an F4 and if so, by how much.
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