The 4 x 5.65" Cavision 1-Stop ND Filter 4x5.65"has a filter factor of 2x that provides a 1-stop exposure reduction and is compatible with filter holders that can accommodate 2mm thick rectangular filters. Its 0.3 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By increasing your aperture or slowing your exposure time, you can control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

This filter is uncoated and is constructed from optical glass for clarity as well as color fidelity. Its enhanced range design is intended to maintain image sharpness when used with lenses that feature a focal length of up to 300mm.

0.3 Optical Density    Uncoated Filter    2mm Thick Optical Glass Construction    2mm Thick Filter    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Microfiber Filter Wrap    Soft Pouch

This filter is compatible with filter holders that can accommodate 2mm thick rectangular filters.

0.3 neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 1-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Filter does not affect coloration of the image and is ideal for use with other filters.

This filter is constructed from optical glass for clarity and color fidelity.

Enhanced range design maintains image sharpness when used with lenses that feature a focal length of up to 300mm.

Microfiber wrap is included for filter maintenance, as well as a soft pouch for storage and transport.

Related Questions and Answers

Q: 1. How do I take apart the heliopan to clean?

A: Unfortunately, this filter cannot be disassembled.

Q: 2. 145mm Neutral Density 32 Filter for WonderPana 145/66 Systems by FotodioX Can these filters be stacked ?

A: Yes, the filters have the same 145mm threading on each side and can be stacked.

Q: 3. Mine has developed a haze between the two filters. Is there a way to take it apart and clean it?

A: I have exactly the same issue, haze inside the filter. I live in Thailand and after contacting Heliopan there seems to be no support whatsoever outside USA. It's a hugely expensive filter that basically for me is unusable. I asked for instructions to open it but they gave me none. Many ppl have the same issue with this vnd but there is no solution anywhere if you live outside US. I saved a long time to get this and am hugely disappointed.

Q: 4. Is this also compatible with the Panasonic AG-UX180 camera?

A: We do not recommend this system for a Camcorder the size of the UX180. This system is designed to work with DSLR cameras and lenses, which may have a smaller outer diameter. While the lens on the UX180 does not have a large filter thread, the outer diameter of it is what you need to watch out for. In our opinion the Redrock Micro microMatteBox Deluxe Bundle with a 142mm Lens Opening is a safer bet. You would just need a Baseplate system to go along with it.https://bhpho.to/2cdsxgxhttps://bhpho.to/2ejXTXc

Q: 5. Is there a step down to 95mm thread available?

A: We would have to recommend not using this on a lens that is larger than it's rear opening. We feel that vignetting would be far too likely.

Q: 6. Is this mattebox a clamp-on design or threaded mount?

A: The Cavision MB4510-H2EX 4x5.65 Hard Shade 16x9 Matte Box does not clamp on to lens thread adapters, it is designed to be mounted on 15mm rods using an non included rod block adapter, like the SmallRig 942 Super Lightweight 15mm LWS Rod Bracket v3 (BH #SM942). See: https://bit.ly/3nq2cVX

Q: 7. fits in Mini Matte Box Small Rig 4x4 ?

A: Yes, the system will adapt to all 4x4 filters that are up to 4 mm thick.

Q: 8. Will this filter fit a Leica Summilux 50mm F1.4 and would cause vignetting in the image wide open?

A: The Heliopan 46mm Variable Gray ND Filter will fit the Leica Summilux-M 50mm f/1.4 ASPH. Lens and will not vignette.

Q: 9. Will this work in the Kase k9 100x100mm filter holder ?

A: The K&F Concept 100 x 100mm ND8 Filter (3-Stop) is compatible with the Kase K9 Filter Holder.

Q: 10. What's the actual filter weight (not package shipping weight) in grams. Looking for options for drone lens...?

A: Sorry, we do not have the actual weight on record and we cannot weigh it. I would subtract a few ounces to get at the weight you need to know.