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UPDATE 3.10.08
Dealer swapped Front Filter for 72mm screw in type - outside imaging with it right now...all subs look free of any vignetting/reflections and I'm pushing 10min exposures too!
Had to purchase a 67-72mm step up ring to get it to fit on my 70-200mm f4L lens ($10 from ebay) and another on the way to try out on my nifty fifty!
One downside - a 72mm filter collects dew quickly!!!
POSTED SOME IMAGES NOW, 72mm Filter First Light!!!
single subs, Cats Paw - 5mins, SMC - 10mins, both iso1600.
200mm f4
Not too bad - longer exp looks like some vignetting creeping in, fixed by flats hopefully - otherwise OK!
Off to bed now - knackered!
Last edited by dugnsuz; 03-10-2008 at 02:38 AM.
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