【Variable ND & CPL filter 2 in 1】One filter has the ND and CPL filter features, the nd filter provides 2-6 stops of light reduction needed, suitable for cloudy days and extremely bright days, the CPL filter can remove unwanted glares from a non-metallic surface, and enhance the color and contrast.
【No “X” Cross on Image】The frame adopts self-locking technology which is infinitely rotated by 2-6 steps, which is convenient for light reduction and positioning, and at the same time avoids the phenomenon of black crosses. The frame is equipped with a push rod, which is convenient for customers to adjust the gear size. For users who shoot video, it is helpful to automatically adjust the light reduction gear through auxiliary tools.
【Putter Adjustable Design Frame】Filter frame is made of aluminum alloy, the CNC-Non-slip with a putter to help adjust the stop easily. There are 5 stops from Min(ND4) to Max (ND64) on the frame, convenient to be sure the ND filter stops.
【oxidation sandblasting】The surface is treated with oxidation sandblasting, which can effectively avoid the entry of stray light to the greatest extent, and is used to reduce reflection
The Sigma I series features full-frame compatible lenses that offer new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras will bring you new opportunities for a perfect shot.
New standards of optical performance for the Contemporary line
Use of multiple high-precision aspherical glass molded lenses
The Sigma I series features full-frame compatible lenses that offer new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras will bring you new opportunities for a perfect shot.
New standards of optical performance for the Contemporary line
Use of multiple high-precision aspherical glass molded lenses
Product Highlight
Model No: Boya K9
– Hi-Fi quality sound, 48 kHz / 24-bit, 20 Hz – 20 kHz
– Innovative one-tap noise cancellation filters out ambient noise
– 3 polar patterns for the K9: supercardioid, figure-8, and omnidirectional
– RGB lighting with 3 vibrant effects for the K9: static, cycle, or gradient
– Real-time monitoring via 3.5 mm TRS
– Plug and play with no driver needed
1 Year Warranty