fernando_b Posted January 14, 2008 Share #1 Posted January 14, 2008 Advertisement (gone after registration) Can you see the strange net-pattern in the sky of either these two images? Someone can guess on what it can be? Camera were an R4 and an R4s, lens R50 Summicron, film Agfa RSX 50 and 100. May be in the first I used a B&W skylight filter. The second is through an airplane window. Thanks in advance, Fernando. Link to post Share on other sites More sharing options...
Advertisement Posted January 14, 2008 Posted January 14, 2008 Hi fernando_b, Take a look here problem: artificial net-pattern. I'm sure you'll find what you were looking for!
wizard Posted January 14, 2008 Share #2 Posted January 14, 2008 Are these two crops from the original negative or slide or did you post detail views of a print? If it is the latter, I suspect the cause of this net pattern to be somewhere in the processing line of the print, but not in the camera. Andy Link to post Share on other sites More sharing options...
fernando_b Posted January 14, 2008 Author Share #3 Posted January 14, 2008 Andy, thanks for answering. Both are 100% crops of slides scans at 1800 dpi. This happened only in these two among hundreds of slides taken with the mentioned film and lens 50 mm. Fernando. Link to post Share on other sites More sharing options...
Kent10D Posted January 14, 2008 Share #4 Posted January 14, 2008 You just need to open the screen door before you take the picture! (Just kidding.) I assume that you don't see that pattern on the slides themselves. Did you scan those yourself on a flatbed scanner? I'm guessing it's some kind of scanning artifact, and I think I remember seeing a similar effect back when I was scanning on a flatbed myself. Can you try rescanning at a different resolution perhaps, to see what happens? Link to post Share on other sites More sharing options...
fernando_b Posted January 16, 2008 Author Share #5 Posted January 16, 2008 Kent, it took me a while to have chance of using a microscope. I observed the slide at 30X magnification and the pattern is in neither of the slides. You are right, it is a scannign artifact. I was fearing the projection lens was not able to show it, despite it is a Colorplan. Now I'm sure the cause insn't in the lens. Fernando. Link to post Share on other sites More sharing options...
atwood1202 Posted January 16, 2008 Share #6 Posted January 16, 2008 You just need to open the screen door before you take the picture! (Just kidding.) hahaha Link to post Share on other sites More sharing options...
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