This 1-stop, 40.5mm Heliopan ND Filter is an ND filter with a 2x filter factor that provides a 1-stop exposure reduction. Its 0.3 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed without overexposing your image. By slowing your exposure time, you can create motion blur for special effects or to convey a sense of movement. Opening your iris allows you to create shallow depth of field, which can help isolate your subject. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

To prevent internal ghosting and reflections, each glass surface includes four layers of anti-reflection coating. Together, these eight coatings offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters.

This Heliopan neutral density filter is constructed from Schott glass for increased optical clarity as well as color fidelity and features a brass filter ring for enhanced durability and jamming prevention.

0.3 Optical Density    4-Layer Multicoating on Each Surface    Schott Glass    Brass Ring    40.5mm Front Filter Threads    Knurled Sides    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture

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.

Each glass surface includes four layers of anti-reflection coating to prevent internal ghosting and reflections.

Constructed from SCHOTT glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Side knurlings to provide a more textured grip when mounting or removing it from a lens.

40.5mm front filter threads allow for use with other filters.

Related Questions and Answers

Q: 1. 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.

Q: 2. Would this Heliopan Variable ND filter fit a sony lens?

A: Whether this filter would fit depends on which Sony lens you own.

Q: 3. Will this filter also cut out IR?

A: This filter does not offer IR cut capability.

Q: 4. 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: 5. Will this work with Leica Q3?

A: Yes, the Heliopan 49mm Variable Gray ND Filter is compatible with the Leica Q3 camera.

Q: 6. What are the meaning of the numbers from 1 to 12 on the filter? Can I use it to adjust an exact ND stop like ND8 or ND16?

A: The 1-12 scale is a half-stop scale that allows you to more precisely set the filter to 0.3 (1-stop) through 1.8 (6 stop) increments, as well as halfway in between any of those stops. It is not exactly related to ND8 or ND16 stops as those would be 0.9 (3-stops) and 1.2 (4-stops), though you could use this 1-12 scale to set those at numbers 6 and 8.

Q: 7. What's the diameter of the lens cap to buy for the Heliopan 46mm variable ND filter? Trying not to remove the filter each time the camera is kept in the bag, thus a lens cap would be useful.

A: The filter can only be used with a push on lens cap. There are none that are specific for that filter. This one is very close but can at times slip off.

Q: 8. 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: 9. sirve para un lente de 85 mm?

A: distancia focal o tamao de hilo?

Q: 10. Can this filter be safely used as a solar filter to film the upcoming solar eclipse?

A: What if one uses live view?