Video Chat with a B&H Expert & Get Photography Advice Live!

Canon Drop-In Filter Mount Adapter EF-EOS R with Circular Polarizer Filter

BH #CAMAEFRFDICP • MFR #3442C002
Canon Drop-In Filter Mount Adapter EF-EOS R with Circular Polarizer Filter
Key Features
  • Canon EF/EF-S Lens to EOS R Camera
  • Maintains AF and Image Stabilization
  • Includes Drop-In Circular Polarizer A
  • Dust- and Water-Resistant
Extending the range of compatible lenses, this Canon Drop-In Filter Mount Adapter EF-EOS R is a unique lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. This sophisticated adapter affords compatibility with select A-type drop-in filters, and includes a circular polarizer filter to help increase saturation and contrast and reduce reflections.
In Stock
$299.00
$50/mo. suggested payments for 6 Mos.
with the credit card.§ 
Protect your Gear
Add a protection plan from $53.99

Ask Our Experts

800.952.1815

Canon 3442C002 Overview

Extending the range of compatible lenses, this Canon Drop-In Filter Mount Adapter EF-EOS R is a unique lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera. This sophisticated adapter affords compatibility with select A-type drop-in filters, and includes a circular polarizer filter to help increase saturation and contrast and reduce reflections.

The adapter's design extends the ability to use filters with unique lenses that cannot accept filters on the front, and and it also retains full autofocus and image stabilization capabilities of the mounted lens. It is also dust- and water-resistant, making it suitable for use in harsh weather conditions.

UPC: 013803318005

Canon 3442C002 Specs

Adapter
Camera MountCanon RF
Lens MountCanon EF, Canon EF/EF-S
Physical
Dimensionsø: 2.9 x H: 1.0" / ø: 73.2 x H: 24.7 mm
Weight4.27 oz / 121 g
Packaging Info
Package Weight0.65 lb
Box Dimensions (LxWxH)5 x 5 x 5"

Canon 3442C002 Reviews

Simple and Functional

By Alice
Rated 5 out of 5
Date: 2022-05-16

I was a little curious as to how much I would like this adapter, using the standard L-series lenses on my new R5 C, but so far it is really a welcome addition to the kit. I have despised using Metabones adapters over the years, so that's where my apprehension came from. I'm not sure how well it works with Sigma, Rokinon, or other third-party manufacturers, but it is great with the Canon lenses. You really don't even know it is there. And, the circular polarizer works quite well, with the adjustment wheel easy to access, smooth to the touch. A welcome addition to the kit.

huge expense for avg tool

By Dat
Rated 3 out of 5
Date: 2021-12-16

WAYYYYY too expensive. Not weather sealed. For R5 users, keep this in mind when shooting outdoors in wet weather. Your camera may be weather sealed, but this adapter negates that! Additional CLEAR drop-in filter REQUIRED in order to use without the PL filter. That's another $130! As for functionality, it works great. Communication between EF lens and camera is good. PL filter leaves a strange gradient at certain angles (?). Can't explain that. 3 stars because I wonder if 3rd party adapters WITH drop-in filters work just as good for about 1/3 or 1/4 of the cost??? I use this for business most of the time, so I want use native gear as much as I can afford. Canon's RF system is putting a dent in my wallet. To the point where I may not be able to afford native Canon gear anymore. May need to switch to 3rd party lens when they become available. For now, this adapter will save me money by using my EF glass.

Perfect.

By Sammy
Rated 5 out of 5
Date: 2021-12-08

Can't go wrong with canon.

Great with my EF lens, pricey.

By Robert
Rated 4 out of 5
Date: 2021-11-08

I like that I can have one filter to use with my various EF lens, without having to buy multiple sized external filters. Although if you don't want to remove the adapter if you don't want to use the CPL filter, it almost forces you to purchase the clear filter so that you do not have an open slot that could get dirt inside you camera or back of lens. Why on the pricey side for the adapter and full set of filters that are available for it, it does work out cheaper than if I had to get external filters for all of my lens.

Good purchase despite the price point

By Ron
Rated 4 out of 5
Date: 2021-11-02

I think the construciton and overall use of all the filters is very good! Excellent AF. A little wobble when my Sigma 800 5.6 lens is attached, not sure if this is an experience all third pary lense users have but it is my experience. All EF glass fits snug however. I wanted more use out of my exisiting lenses so I purchased this adapter for my new camera. It gives me the versatility I want, at a higher price point, but I feel like I am getting out of it what I paid for.

Light loss

By Joseph
Rated 5 out of 5
Date: 2021-11-01

There is some light loss using the CPL drop in. I would highly recommend getting a clear one also for those low light times when a cpl isn't necessary. Also breakthrough photography has a wide selection of aftermarket drop ins from cpls, clear, infrared, nightsky and even a collection of NDs.

Canon EF-R mount ad CP filter

By Ray
Rated 5 out of 5
Date: 2022-02-07

I purchased this EOS EF-R adapter with the Drop-In CP filter primarily for use on my EOS R5 with my new IRIX 11mm f4 lens attached (since it has no front filter capability). However, even though I also have a Canon EOS EF-R mount adapter with control ring for my existing EF mount lenses, I like this super easy to use rear Drop-In CP filter design for all of my lenses, and not need to use my old front filter mount magnetic CP filters. The small rotation wheel with this adapter is super easy to use, much easier than a CP filter on the front of the lens. I also like that I can use my lenses with this CP filter still have my lens hoods attached. It's a bit expensive, but well worth it for me. Highly recommended.

Overpriced but very useful

By Michael
Rated 4 out of 5
Date: 2022-02-01

While this adapter is surprisingly expensive, the ability to use this filter with any EF lens and rotate the filter without reaching around to the front of the lens is nice.

See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Will this work with the RP

Will this work with the RP
Asked by: Joseph L
Yes it will. This will work with the Canon EOS RP as well.
Answered by: Joseph
Date published: 2020-03-27

Is there a case for the drop-in filter when not ...

Is there a case for the drop-in filter when not in use?
Asked by: Daniel
The filter that comes with the adapter does not come with its own case.
Answered by: Rob
Date published: 2021-02-18

The directions for the adapter say it has to be ...

The directions for the adapter say it has to be removed from the camera before I can change lenses. Why? It seems that it would be easier to leave the adapter on the camera and just change the lens attached to the adapter.
Asked by: Mary
We have all 3 adapters and 11 lenses and swap them out all the time without removing the lenses, never have had an issue,
Answered by: Thomas
Date published: 2021-08-27

Description says "water-resistant". How ...

Description says "water-resistant". How water-resistant is the dial that you turn to rotate the circular polarizer? Usable in rain?
Asked by: Magneto
Why in the heck would you think this would be good in the rain? There's not a possibility I would ever put this holder on in the rain. Yes it's good for misty conditions but not like prime lenses. I would not recommend using in rain or high moisture conditions.
Answered by: Bill
Date published: 2021-10-12

I am more concerning the image quality and ...

I am more concerning the image quality and autofocus speed when using polarizer filter. Does it degrade the image quality of the captured image? Does it slow down the autofocus speed at all?
Asked by: Rong
It works well , does not change the auto focus speed and does not degrade the image quality
Answered by: vilson
Date published: 2021-02-18

Is there a filter adapter for use with the RF ...

Is there a filter adapter for use with the RF lenses? Or does this allow both EF and RF lenses?
Asked by: Richard
No there is no RF to RF adapter
Answered by: vilson
Date published: 2021-02-09

question

Is the adapter compatible with 3rd party 52mm screw-on filters?
Asked by: Anonymous
Unfortunately it is not. This adapter is only compatible with the specific Drop-In Filters from Canon for it.
Answered by: Joseph
Date published: 2019-08-05

Does this adapter have the control ring as in the ...

Does this adapter have the control ring as in the $199 version?
Asked by: Zhihong
No, where the control Ring would have to be, is where the filter is placed.
Answered by: Richard
Date published: 2021-04-06
  • y_2022, m_8, d_13, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_22
  • loc_en_US, sid_1434047, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo