Canon Drop-In Variable ND Filter A (1.5-9 Stop)

BH #CADIVNDFA • MFR #3446C001
Canon Drop-In Variable ND Filter A (1.5-9 Stop)
Key Features
  • Variable ND3-ND500 Filter
  • Reduce Exposure by 1.5 to 9 Stops
  • For Drop-In Filter Mount Adapt. EF-EOS R
  • Integrated Filter Rotation Wheel
Designed for use with the Canon Drop-In Filter Mount Adapter EF-EOS R, this Drop-In Variable Neutral Density 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. This variable ND filter 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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Canon 3446C001 Overview

Designed for use with the Canon Drop-In Filter Mount Adapter EF-EOS R, this Drop-In Variable Neutral Density 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. This variable ND filter is permanently installed within a drop-in holder and has an integrated wheel for adjusting the rotation position to alter the ND effect.

The variable ND filter has an ND3-ND500 range, offering 1.5 to 9 stops of adjustment, and creates a darkening of the entire image for photographing with a wider aperture or slower shutter speed than normally required. The degree of density is easily controlled by rotating the filter, helping you to predetermine the additional exposure length required. By increasing your aperture or slowing your exposure time, you are able to control depth of field and convey movement more easily.

UPC: 013803318043

Canon 3446C001 Specs

Filter TypeVariable ND
Density0.45 (1.5-Stop) to 2.7 (9-Stop)
Front Accessory Thread / BayonetUnthreaded
Filter MaterialGlass
Packaging Info
Package Weight0.185 lb
Box Dimensions (LxWxH)3.8 x 3.8 x 1.5"
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YOUR RECENTLY VIEWED ITEMS

Why is it MORE expensive to buy just the filter ...

Why is it MORE expensive to buy just the filter without the adapter included?
Asked by: Philip
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.
Answered by: Manzell
Date published: 2019-08-24

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?
Asked by: guiyun
No, this filter system is for use in the Canon EF to RF lens adapter that takes drop in filters.
Answered by: Rob
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
Asked by: John
Awesome! Thank you, I’ll check our breakthrough.
Answered by: John
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 ?
Asked by: roger
It has reference marks.
Answered by: Reuben
Date published: 2021-04-17

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?
Asked by: Jack
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.
Answered by: Patrick
Date published: 2019-08-08

What is a recommended storage case for the filter ...

What is a recommended storage case for the filter when not in the adapter?
Asked by: Gary
A Domke 11x11" Color Coded Protective Wrap (Gray), B H # DOPW11G would be a suitable option to store this filter. https://bhpho.to/3t8GR0O
Answered by: Kirk
Date published: 2021-03-11

Up to how many stops can it provide?

Up to how many stops can it provide?
Asked by: Edward
The headline and specs both say 1.5 to 9 stops.
Answered by: Perry
Date published: 2021-02-26
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