Video Chat with a Photography Expert - Live

Kenko Auto Extension Tube Set for Canon RF Lenses

BH #KEAEXTBDGCRF • MFR #A-EXTUBEDG-CRF
Kenko Auto Extension Tube Set for Canon RF Lenses
Key Features
  • Two Extension Tubes
  • Compatible with Canon RF Lenses
  • Use Individually or Combined
  • Macro Conversion
The Auto Extension Tube Set for Canon RF Lenses by Kenko is a set of two extension tubes for mirrorless interchangeable lens cameras. This set has tubes of 10 mm and 16mm. The tubes can be used individually or in combination to obtain the desired magnification.

Extension tubes are hollow cylinders without optics designed to enable a camera's lens to focus closer than its minimum focusing distance and therefore provide more magnification. They are placed between the lens and body and are particularly useful in allowing lenses without macro capability to shoot macro, but in general, they offer increased magnification for whatever need. 

An extension tube increases lens magnification by an amount equal to the extension distance divided by the lens focal length. For example, adding a 25 mm extension tube to a 50 mm lens will give a magnification gain of 0.5X. Therefore, if the lens's original magnification was 0.15X, then the new magnification will be 0.15X + 0.5X = 0.65X.

Kenko's Auto Focus extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with Canon RF lenses.

Special Order
Expected availability: 7-14 business days
$219.90
$37/mo. suggested payments for 6 Mos.
with the credit card.§ 
Protect your Gear
Add a protection plan from $36.99
Ask Our Experts
800.606.6969

Kenko A-EXTUBEDG-CRF Overview

The Auto Extension Tube Set for Canon RF Lenses by Kenko is a set of two extension tubes for mirrorless interchangeable lens cameras. This set has tubes of 10 mm and 16mm. The tubes can be used individually or in combination to obtain the desired magnification.

Extension tubes are hollow cylinders without optics designed to enable a camera's lens to focus closer than its minimum focusing distance and therefore provide more magnification. They are placed between the lens and body and are particularly useful in allowing lenses without macro capability to shoot macro, but in general, they offer increased magnification for whatever need. 

An extension tube increases lens magnification by an amount equal to the extension distance divided by the lens focal length. For example, adding a 25 mm extension tube to a 50 mm lens will give a magnification gain of 0.5X. Therefore, if the lens's original magnification was 0.15X, then the new magnification will be 0.15X + 0.5X = 0.65X.

Kenko's Auto Focus extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with Canon RF lenses.

Note:
1. When using extension tubes the lens will not focus to infinity. The focus range will be greatly limited to a very close focusing distance. 2. There is light fall off when using any extension tube, sometimes the equivalent of 3 f-stops of light is lost when using multiple extension tubes together. This light lost can affect the camera's ability to auto focus. Manual focusing is recommended should the lens begin to "hunt" (not lock onto the subject).

Kenko A-EXTUBEDG-CRF Specs

MountCanon RF
Length10 mm
16 mm
Weight1.7 oz / 48 g (10 mm Tube)
2.5 oz / 70 g (16 mm Tube)
Packaging Info
Package Weight0.47 lb
Box Dimensions (LxWxH)3.9 x 3.9 x 1.9"

Kenko A-EXTUBEDG-CRF Reviews

See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS