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Key Features
- For Drop-In Filter Adapter & 7-14mm Lens
- Reduces Exposure 1.5 to 9 Stops
- Integrated Filter Rotation Wheel
- Reduces Exposure, Darkens Entire Image
Designed for use with the Drop-In Filter Mount Adapter EF-EOS R and select Canon lenses, this Drop-In Variable ND Filter A is an intuitive and sleek means for using a variable neutral density filter in conjunction with an adapted lens, especially those lenses lacking traditional filter threads, or with compatible lenses featuring a rear drop-in filter slot. This variable ND is permanently installed within a drop-in holder and has an integrated wheel for adjusting the rotation position to alter the ND effect.
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This fits into the Canon Drop-In Filter Mount Adap
This fits into the Canon Drop-In Filter Mount Adapter EF-EOS R with Circular Polarizer Filter but not the version with adapter only, correct? https://www.bhphotovideo.com/c/product/1433717-REG/canon_mount_adapter_ef_rf.html
Yes, the Canon Drop-In Variable ND Filter A (1.5 to 9-Stop) will only work with the Drop-In Filter Mount Adapter EF-EOS R and RF 7-14mm f/2.8-3.5 L Fisheye STM Lens.
Date published: 2026-04-28
Why is it MORE expensive to buy just the filter ...
Why is it MORE expensive to buy just the filter without the adapter included?
While Canon sets the MSRP on their items, as of the time/date of this reply, the cost of the Canon Drop-In Variable ND Filter A (1.5-9 Stop), BH #CADIVNDFA, and the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter, BH #CAMAEFRFDIND, on our website are currently the same price. However, I would simply recommend that if you are certain that you want the Variable ND Filter, as it is the most expensive of the filter options that are compatible for use with the Canon Drop-In Filter Mount Adapter EF-EOS R, I would simply recommend to purchase the adapter kit that comes with the Variable ND filter, the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter, BH #CAMAEFRFDIND.
Date published: 2019-08-24
Does this have the option to not use any ND, ...
Does this have the option to not use any ND, while keeping the filter in the adapter to avoid dust seeping into the hole?
You will need to add this clear filter to the drop in filter slot in the Canon EF RF filter adapter. This filter will make sure no dust gets in the camera. https://www.bhphotovideo.com/c/product/1434115-REG/canon_3444c001_drop_in_clear_filter_a.html
Date published: 2022-03-15
I have a RF 24-70mm lens, do I just place this ...
I have a RF 24-70mm lens, do I just place this acessory behind the lens? Would it fit?
No, this filter system is for use in the Canon EF to RF lens adapter that takes drop in filters.
Date published: 2021-03-04
Is there a non-variable ND drop in filter for ...
Is there a non-variable ND drop in filter for this mount? Like a set of multiple NDs? I can't stand the color shift and increased contrast variable NDs create. I'd much prefer to just carry around a few drop in's at varying ND levels
Awesome! Thank you, I’ll check our breakthrough.
Date published: 2020-08-19
does it let you know what stop its set at ?
does it let you know what stop its set at ?
It has reference marks.
Date published: 2021-04-17
Does the variable ND drop in filter fit in the ...
Does the variable ND drop in filter fit in the Canon ef -R 0.71 speed booster?
No but that's great idea. Speed booster with a drop in filter.
Date published: 2022-06-27
How big is the actual filter? Will this drop in ...
How big is the actual filter? Will this drop in to the 52 mm filter slots at the back of Canon telephoto lenses?
I don't have the actual dimensions but the filter is permanently mounted in the holder and it will only fit into the canon drop in filter mount adapter. See BH #CAMAEFRFDIND.
Date published: 2019-08-08