step-down ring and vignetting on crop sensor

Started Apr 30, 2014 | Questions thread
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pistachioShell
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step-down ring and vignetting on crop sensor
Apr 30, 2014

I have 58mm CP and ND filters for an FX 50mm lens on a crop sensor Nikon camera.  An FX 85mm lens takes 67mm filters.  I could use 58mm filters with a step down ring without vignetting because 67/1.5 = 44 < 58.  In fact, I could use the 58mm filters with a step down ring on an FX lens that takes 77mm filters because 77/1.5 = 51 < 58.  Is that right?

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Nikon D7100 Nikon AF-S DX Nikkor 35mm f/1.8G Nikon AF-S DX Nikkor 12-24mm f/4G ED-IF Nikon AF-S Nikkor 300mm f/4D ED-IF Nikon AF-S Teleconverter TC-14E II +3 more
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