Technical Specifications of Zomei Gradual Neutral Density ND2+ND4+ND8+ND16 Filter Size: 150 mm x 100 mm Material: Optical Resin Compatible Format: 100mm Z-Pro Series To Fit Lens Front (mm): Requires adaptor ring & holder Graduated ND2(0.3) , reduces 1 half stop of light Graduated ND4(0.6) , reduces 2 half stop of light Graduated ND8(0.9) , reduces 3 half stop of light Graduated ND16(1.2) , reduces 4 half stop of light Help you to control light and colour directly on your raw images when shooting,make your pictures more real than PS and save your much time Soft gradual, the color transit natural and won't cause disotion Wide angle,no dark corner, better than round filters, and have very strong effects Work with Cokin Z series Holder and Adapter ring,fit for all size lens.
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