nunnzzzz Posted July 8, 2011 Share #1 Posted July 8, 2011 Advertisement (gone after registration) I am in Tahoe and shooting with my new 18mm Leica Lens. LOVE it but i notice some reflections in the upper corners. Does anyone know if this is a concern or what may cause this? Link to post Share on other sites More sharing options...
Advertisement Posted July 8, 2011 Posted July 8, 2011 Hi nunnzzzz, Take a look here Issue with 18mm Leica Lens. I'm sure you'll find what you were looking for!
Erik Gunst Lund Posted July 8, 2011 Share #2 Posted July 8, 2011 Looks like hard vignetting, filter or lens hood Link to post Share on other sites More sharing options...
mikebidwell Posted July 8, 2011 Share #3 Posted July 8, 2011 Looks like hard vignetting, filter or lens hood Tend to agree as it looks as though it's in all corners. Best wishes Link to post Share on other sites More sharing options...
jaapv Posted July 8, 2011 Share #4 Posted July 8, 2011 Looks like hard vignetting, filter or lens hood Agree Link to post Share on other sites More sharing options...
mr_big Posted July 8, 2011 Share #5 Posted July 8, 2011 I think the OP is referring to what appears to be ghosted images of the trees or mountains which you can see more easily in the upper left corner. Link to post Share on other sites More sharing options...
ho_co Posted July 8, 2011 Share #6 Posted July 8, 2011 Possibly reflection between filter and front of lens. Leica had a similar problem with the WATE's filter adapter before supplying the mask for that adapter. See if the problem doesn't go away if you remove the filter--both the vignetting and the reflections. You're not using a polarizer, are you? Link to post Share on other sites More sharing options...
jaapv Posted July 8, 2011 Share #7 Posted July 8, 2011 Advertisement (gone after registration) I think the OP is referring to what appears to be ghosted images of the trees or mountains which you can see more easily in the upper left corner. Oh, that is most likely a reflection in the filter. Link to post Share on other sites More sharing options...
UliWer Posted July 8, 2011 Share #8 Posted July 8, 2011 Question to nunnzzz: Which adapter do you use for the filter? The adapter for UV/IR-filters is not supposed for the M9! Link to post Share on other sites More sharing options...
lumberjacksr Posted July 8, 2011 Share #9 Posted July 8, 2011 I have not had the same observation with the same lens, the difference is I don't use the filter on it. Link to post Share on other sites More sharing options...
nunnzzzz Posted July 9, 2011 Author Share #10 Posted July 9, 2011 the photo was taken on my M9 using the Leica E77 Filter Carrier and a Polarizer attached. Link to post Share on other sites More sharing options...
tappan Posted July 9, 2011 Share #11 Posted July 9, 2011 My opinion is that a Leica lens does not need a polarizer and that the Leica 18mm, specifically, does not need a filter. Just be careful to not scratch the front glass and you are all set. Link to post Share on other sites More sharing options...
ho_co Posted July 9, 2011 Share #12 Posted July 9, 2011 Remember that the horizontal angle of view of the 18mm is 90 degrees, the same as the angle from minimum to maximum polarization. That's part of why the sky has such a varied appearance in the image, from deep blue to light blue. With the 18 horizontal, you're guaranteed to include both maximally polarized and unpolarized sky in the same shot. Add to that the vignetting and the reflections that you see here, and you'd get better results without the filter. Or, if you want to use the polarizer, you should be sure to get a thin one (if available), and cover the see-through holes (I assume the 77mm adapter has them) with black paper to reduce the reflection, just as Leica does with the filter holder for the WATE. Link to post Share on other sites More sharing options...
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