STC 67mm Variable Neutral Density Multi-Coated Filter, ND2-1024

• Convenient ND 2~1024 all-in-one filter with non-stop limitation mechanism.
• Accurate 10 graduation: ND2, ND4, ND8, ND16, ND32, ND64, ND128, ND256, ND512, ND1024.
• Ultra slim 9mm frame design is to reduce vignetting even use with wide angle lens.
• Both-sided multiple NANO coating made the glass easy to clean with anti-smudge, antistatic and scratch resistant coatings.
• Teflon-coated knurled thread is easy to install or remove from your lens, and it's available for lens cap and hood.

Description The STC Variable ND Filter provides the photographers with greater flexibility to optimize the balance between aperture, exposure time and motion blur of subject in different situations and atmospheric conditions. The charm of using fast lens is the soft focus background of shallow depth of field. But if the light is sufficient, the aperture should be adjusted to avoid over exposure, you will need ND to fix this dilemma. STC Ultra Layer Variable ND Filter is versatile with easily adjustable light control, compact many ND Filters all-in-one to prevent from the problem of changing ND all the time, thus you can get a soft focus effect with fast lens and shallow depth of field in high brightness environment; or get the vivid motion blur of water flow or car flow without effecting color saturation of causing color cast. SLC (simulated linear calibration) technique makes the transmission of visual light through ND glass and Polarizing film equal and extremely low color cast. In addition, the physical theory of "X" effect at maximum graduation is unavoidable. Designed for some photographer in favor of long exposure shooting, Variable ND16~4096 would be more useful on wide angle lens.