1. Advanced knurling technology, prevent hand slip, convenient to disassembly.
2. aluminum frame designed, frame front with thread, can install lens cover and other accessory at any time.
3. Rotating filter, outer ring can adjust the wavelength arbitrarily, from 530nm to 750nm change.
4. Suitable for infrared photography creation, very practical integrated adjustable infrared filter, can provide you with more operable content of infrared photography creation.
5. For internal and weak shadows, use 680nm, using 750nm indoors and in low light.

Spec:
Condition: Brand New
Item Type: Infrared Filter
Brand: FOTGA
Material: Aluminum Alloy + Optical Glass
Color: As Pictures Shown
Quantity: 1PCS
Wavelength: 530nm、590nm、630nm、680nm、720nm、750nm
Main Function: Rotating Filter, Outer Ring Can Adjust Wavelength Arbitrarily, Can Adjusted From 530nm To 590nm and Then To 630nm Until Adjusted To 750nm
Weight: Approx. 37g
Frame Thickness: Approx. 1.6cm/0.63inch
Optional Filter Interface Diameter: Approx. 43mm/1.69inch, 46mm/1.81inch

packing list:
1 x Infrared Filter