Brand Name: Zomei
Model Number: ND2-400
Package: Yes
Type: Fader ND
Type: Neutral Density Filter
Packing: Elegant and protective
Function: Minimize dark corners
Coating: 18 Layer Coating on both sides
Standard: ROHS
Variable from: ND2-400
Glass Origin: Germany Shott Glass
Only 1.40mm thickness, Wide-angle lens compatible ultra thin frame.
With Zomei Variable Density Neutral Gray filters, users can select the intensity from ND2 (1 f-stop) to ND400 (9+ f-stops) by rotating the front ring.
Glass mounted with high pressure press technology.
Original AGC Optical Glass from Japan.
All Materials Used in this filter Meet the Requirements of European Union&39;s standards of Environ Ment Protection-ROHS(Restrictions on Hazardous Substances).
Neutral Density filters are used to reduce the quantity of light that reaches the sensor of the camera. They allow to decrease the shutter speed in order to achieve motion blur (waterfalls, ocean, clouds...) and/or to reduce depth of field in very bright conditions. As they are "neutral", ND filters do not affect color rendition. With Zomei Variable Density Neutral Gray filters, users can select the intensity from ND2 (1 f-stop) to ND400 (9+ f-stops) by rotating the front ring.
Notice
When using the ND filter to the Maximum density,It will appear obvious "X" spot a blur in the picture.
This is a normal optical phenomenon.
Solution:To Gradually lower the density value and reduce the aperture,until the facula disappeared