43mm ND1000 Filter 10 Stops ND, Solid Neutral Density Lens Filter Multi-Coated Optical Glass Neutral Grey ND with Multi-Resistant Coating Nano-Xcel series

SKU: KF01.999

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Canon has at least 7 different 50mm lenses. You need to look on your lens to see what filter size it takes. It'll be written on the lens at the front, beside this symbol: Ø. 
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Hey, this filter should fit any lens that has the appropriate filter thread (In this example, 37mm should fit any 37mm filter thread). If for some reason it doesn't fit, you can always return it and go from there. But I would be very surprised if it does not fit. 
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No, the cross pattern comes from the two pieces of glass needed on the variable filters. This is a single piece of glass but dependant on the focal length on of your lens, you might see some vignette, but that can be sorted on post. 
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