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Old 18-08-2010, 05:25 AM
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troypiggo (Troy)
Bust Duster

troypiggo is offline
Join Date: Nov 2008
Location: Brisbane, Australia
Posts: 4,842
I've got the WO FF IV. It does give me a flat field with 40D on ED80, but as you say it isn't a reducer. It actually does extend by around 1.1x-1.15x.

Can't help with the others. I've only ever tried a MPCC, WO FFIII and WO FFIV.
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