Andrea B. Posted July 18, 2013 Share Posted July 18, 2013 While I was outdoors broiling the D600 and some filters in this intense summer heat, I also grabbed a shot with my tiny little 340AF15 bought off the internet. Had to handhold it to the UV-Nikkor, but didn't do too well at that. You can see the Light Leak in the lower left quadrant. I think the filter is deteriorating a bit. One side seems to be becoming filmy. It wouldn't clean up. Or perhaps this filter is layered and the humidity got to it out there in Swamplandia. I just don't know. It's not a good shot. However, the photograph, while obviously deficient, does at least serve to show there is UV-signature capturable 25nm below where our filters normally peak. And, it doesn't look all that much different from what we normally shoot with a Baader U. D600-broadband + 105/4.5 UV-Nikkor + 340AF15 + Sunshine f/11 for 6" @ ISO 400. This needed a long exposure time !! Today the same shot with the Baader U need only 1 second. (And that is actually a little big long, but I had some other variables at play today - location, clouds and so forth.) Link to comment
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