This 16.6-stop, 82mm ProND-100000 ND Solar Filter from Hoya provides a 16.6-stop exposure reduction, and its 5.0 density creates a darkening of the entire image with a 0.001% transmittance that is effective for solar and solar eclipse photography. With this filter, users can capture photographs with a wider aperture or a slower shutter speed than normally required. The filter material provides an accurate neutral color rendition without any noticeable colorcast to the images, and its vapor-deposition application to the glass lens ensures an even and consistent layer. An aluminum-alloy filter ring holds the filter for durability while remaining lightweight.

This filter is designed specifically for photography applications. This filter is not suitable for direct solar viewing with the naked eye, including with optical viewfinders.

5.0 Optical Density    Multicoated Optical Glass    Aluminum-Alloy Filter Ring    Designed for Solar Photography    Allows Reduced Shutter Speed    Enables Wider Aperture and Long Exposure    Not for Direct Viewing of the Sun

Related Questions and Answers

Q: 1. is this ND filter ideal for video use? I plan on using it with a Sony FDR-AX33 4K camera.

A: Actually the newest ND filter by Hoya (the SOLAS filter series) would be more suited for video work:https://a href= http://www.bhphotovideo.com/c/product/1285182-REG/hoya_xsl_46irnd09_46mm_solas_0_9_irnd.html target= _blank www.bhphotovideo.com/c/product/1285182-REG/hoya_xsl_46irnd09_46mm_solas_0_9_irnd.html/a

Q: 2. Will you need to remove this filter during the total eclipse to see & photograph anything?

A: Yes, solar filters are designed for shooting the entire sun and partial eclipse phases. You will need to remove the filter during totality to photograph the corona. If you also want to photograph Bailey's beads and the diamond ring effect, you will want to remove the filter about 20-30 seconds before totality begins and replace it about 20-30 seconds after totality ends. This will not damage your camera equipment. Another answer implied that it is safe to view the eclipse through your camera's optical viewfinder with this filter in place, but that is NOT the case. This filter is NOT certified for visual observation. Place a viewfinder cover or a piece of tape over your optical viewfinder as a precaution, and only use live view to focus and compose your frames.

Q: 3. Is this one of the Hoya HMC filters with box stating "Do not use any chemical cleaners for cleaning only a soft cotton cloth allowed"?

A: I looked at the box and I don't see that message written on it.

Q: 4. Is this filter made in Japan?

A: As per our records, the Hoya ProND EX 1000 Filter (82mm, 10-Stop) is currently made in Japan. Please note that this is subject to change at any time.

Q: 5. Can you stack this lens with a Hoya 55 mm UV filter?

A: Yes, the Hoya ProND EX 64 Filter (55mm, 6-Stop) has front and back 55mm threads so it can be stacked.

Q: 6. Is This Filter Really A 62mm Filter? Why In The Photo It Says 77mm?

A: Yes, Hoya ProND EX 1000 Filter (62mm, 10-Stop) is 62mm not 77mm.

Q: 7. Do these filter IR?

A: Hoya ProND EX 3-Filter Kit (77mm) does not filter IR.

Q: 8. Hi, pls specify the make. Is it Japanese?

A: Currently it is made in Japan. Please note that this is subject to change at any time.

Q: 9. Can one place the 77 mm Hoya CPD-77ND100000 ND filter over a 77mm Hoya UV filter, and in so doing protect the sensor further from UV? There may be slight vignetting, but if shooting an eclipse that will not matter.

A: Yes you could do this. That way you protect the Sensor more. That shouldn't be an issue. You just might have a slight Vignette.

Q: 10. What size filter will fit a Leica Ultravid 12x50 HD binoculars? Thanks.

A: The Leica Ultravid 12x50 HD do not have a standardized filter thread.