This Adapter Mount Format PowerND 1.2 Filter for Canon EF-EOS R Lens Mount Adapter from Aurora Aperture is an ND filter with a 16x filter factor that provides a 4-stop exposure reduction. Its 1.2 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you can control depth of field and convey movement more easily. This neutral density filter is mounted within a durable, aluminum alloy filter frame that is made specifically to fit within a separately available Canon EF-EOS R Lens Mount Adapter. By mounting an Aurora Aperture Adapter Mount Format Filter inside a compatible lens mount adapter, that filter can be used for multiple lenses even if those lenses have differing or non-existent front filter threads.

This filter is constructed from Schott B270 glass for increased optical clarity as well as color fidelity, and each glass surface is multi-coated to prevent ghosting as well as reflections. The nano coating associated with the Adapter Mount Format PowerND 1.2 Filter for Canon EF-EOS R Lens Mount Adapter provides an additional layer that allows for more efficient cleaning when its surfaces come in contact with dust, dirt, water, or oil.

Snap-In Solid Neutral Density Filter    Fits Canon EF-EOS R Lens Mount Adapter    16x Filter Factor, 4-Stop    Reduce Shutter Speeds    Widen Apertures    Schott B270 Glass Construction    Multi-Coated, Nano-Coated    Water, Oil, and Dust Resistant    Durable, Aluminum Alloy Filter Frame

• Compatible with separately available Canon EF-EOS R Lens Mount Adapter
• Snap-in 1.2 neutral density filter darkens the image by 4 stops, allowing you to photograph with a longer shutter speed or wider aperture than normally required
• Filter does not affect coloration of the image
• Constructed from Schott B270 glass for increased optical clarity and color fidelity
• Multi-coated to prevent ghosting as well as reflections
• Nano coating allows for more efficient cleaning when the filter's surfaces come in contact with dust, dirt, water, or oil
• Durable, aluminum alloy filter frame

Related Questions and Answers

Q: 1. I have a Canon 6d and I need a ring adapter to be able to use my Canon EF-S 18-55 mm and Canon EF-S 24 mm on that camera. Which ring adapter do I need?

A: Unfortunately, there is no adapter for EF-S to EF as they have the same flange distance. EF-S lenses also will not fully illuminate the full-frame sensor of your 6D and you will have heavy vignetting around your images.

Q: 2. will this work with the black magic pocket cinema 6k pro?

A: This is for adapting Canon EF mount lenses on a Canon EOS R series body only.

Q: 3. Can these filters be used at full 11mm zoom on Canon 11-24 f4 lens? Read somewhere that some of these rear mount filters can damage lens and not recommended to use filter in the lens rear filter slot at the widest zoom because the rear glass element will hit the filter.

A: Yes it can be used throughout the full zoom range on the 11-24mm and it will not damage the lens.

Q: 4. When the ef-s 10-22 lens is mounted on the R adapter(s) will it produce vignetting since the lens was designed for the cropped sensor?

A: EF-S lenses are automatically cropped to an APS-C sized portion of the full frame sensor, so no vignetting. FF to APS-C cropping reduces 30.3 megapixels to 11.6.

Q: 5. Does this filter sit in-between the sensor and the adapter, or in-between the adapter and the lens?

A: This filter will mount inside the adapter. It slides into the opening in the adapter.

Q: 6. It sounds like that all of my EF lenses I currently use on my 5D Mark III will not be cropped when I attach them to the R6?

A: The adapter does not crop the image.

Q: 7. Does this filter work for the solar eclipse?

A: Yes, the Aurora-Aperture Adapter Mount Format PowerND 4.8 Filter for Nikon FTZ Lens Mount Adapter (16-Stop) can work for solar photography but I would recommend a filter that goes onto the front element of the lens to avoid any damage that can pass through internally.

Q: 8. Will this work for the Canon EOS RP or just the EOS R?

A: Yes, it is compatible with the EOS RP.

Q: 9. Why no tripod collar? Is there an aftermarket one that will work. It is really front heavy for gimbal use.

A: Unfortunately there aren't any options to add a tripod collar to this adapter. The other option is to get a longer plate for your Gimbal to enable sliding the camera further back.

Q: 10. i have a Rebel 2000 camera and several ultrasonic lenses. what converter do i need for a canon eos r5?

A: The following adapter will allow you to mount your EF lens to your R5 body.