We did little research recently.
It seems many photographers are really tired while changing the Filter holders to the Variable ND. Which means they need to take the adapter ring off from the lens and then screw on the Variable ND.
screw, screw and screw …
Product Name: Haida M10 Insert Variable ND Filter
Size: 100*100 mm
Thickness of Filter: 2mm
Material: K9 Optical Glass
Type of Filter: Drop-in Filter
Variable Range: ND2-ND16, ND8-32, ND64-500
Features: Low Color-Cast
Scratch Proof Coating
Water Proof Coating
R5 Rounded
WHY YOU NEED IT
I. New Function for Your M10 Filter Holder System
Combining with the Haida M10 Drop-in CPL, which makes the holder system become the Variable ND filter easily.
Rotating the wheel on the CPL, adjust the ND to the stops you need.
Ⅱ. Matches All Your Needs with Different Stops
Combine with the Haida M10 Drop-in CPL
Suggestion Stops: 1-4 stops (ND2-ND16)
Combine with the Haida M10 Drop-in CPL+ND0.9
Suggestion Stops: 3-5 stops (ND8-ND32)
Combine with the Haida M10 Drop-in CPL+ND1.8
Suggestion Stops: 6-9 stops (ND64-ND500)
Ⅲ. Different Size of Adapter Ring for Your Choice
Combine with the M10 filter holder system, it can be used for different lenses with different sizes of the adapter rings.
Available size: 37*0.75mm, 39mm, 40mm, 43mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm
