Does this adapter support AF-C (continuous auto focus)?

It supports everything just like the canon model, but cheaper and it’s even Weathershield to boot get it now before they raise the price simple as that

How many type of the filter do the “ mk-eftr-c” support?

VND, Clear, blackmist 1/8 and 1/4.

I guess this can't be used with rf lenses. Do they make a version that can?

This is for EF lenses on an RF camera. No they could not make one for RF lenses because they would move the lens too far from the image sensor. The reason EF lenses work is they are designed to have room for the DSLR mirror between the lens and the image sensor. That leaves space for a filter holder with a mirrorless camera

Is there a colour cast with this? i don't know much about the brand. does it also come wit ha rubber weather seal like canon l lenses?

No color cast I’ve noticed and I reviewed a few tests on YouTube that say the same. And it does have a weather seal.

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MK-EFTR-C

Product ID: 402068768

Details

Brand
Meike
Coating Description
Multi Coating
Material
Aluminum
Photo Filter Effect Type
Neutral
Photo Filter Factor
9 x
Photo Filter Size
72 Millimeters

📡Gold-plated PIN for signal

🔄Seamless Auto-Focus support

🎛️Variable ND 1.5-9 stops

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£129.78

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Description

🎥 Elevate your Canon EF lenses to EOS R brilliance with precision ND control and flawless AF!

DURABLE ALUMINUM BUILD - Lightweight yet sturdy design crafted for professional-grade reliability on the go.
ROBUST SIGNAL TRANSMISSION - Gold-plated pins ensure flawless communication between lens and camera body.
MULTI COATED UV ND FILTERS - Reduce glare and protect your lens while achieving perfect light balance in any environment.
PRECISION VARIABLE ND CONTROL - Adjust exposure smoothly from ND3 to ND500 (1.5 to 9 stops) for cinematic versatility.
EFFORTLESS AUTOFOCUS INTEGRATION - Maintains full AF functionality with Canon EF lenses on EOS R series for sharp, instant focus.

The Meike MK-EFTR-C is a premium lens adapter that seamlessly connects Canon EF/EF-S lenses to EOS R mirrorless cameras. Featuring a built-in variable neutral density filter (ND3-ND500) and UV filter, it offers up to 9 stops of light control for creative exposure management. Its gold-plated pins guarantee reliable electronic communication, preserving autofocus and aperture control. Crafted from durable aluminum with multi-coated filters, this adapter is optimized for professional photographers and videographers seeking enhanced versatility and image quality.

Specifications

ASIN	B09JNWB1NX
Best Sellers Rank	#71 in Camera Lens Adapters & Converters
Brand	Meike
Coating Description	Multi Coating
Compatible Devices	Canon EOS R, R5, R6, RP, R5C, C70
Customer Reviews	4.6 out of 5 stars 329 Reviews
Enclosure Material	Aluminum
Exposure Control Type	Automatic
File Format	MP4
Image stabilization	yes
Item Dimensions L x W	2.87"L x 2.87"W
Manufacturer	Meike
Manufacturer Part Number	MK-EFTR-C
Material	Aluminum
Media Type	Product image
Model Name	Meike MK-EFTR-C
Model Number	MK-EFTR-C
Photo Filter Effect Type	Neutral Density, Ultraviolet
Photo Filter Factor	9 x
Photo Filter Size	72 Millimeters
Photo Filter Thread Size	1 Millimeters
Set Name	Adapter with 2 Filters
Special Effect	Neutral Density, Ultraviolet
Thread Size	1 Millimeters
Unit Count	1.0 Count
Video Capture Format	MP4
Viewfinder Type	LCD screen
Water Resistance Level	Not Water Resistant

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