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Electronic Marco Extension Tube for Canon EOS EF EF-S
Introduction:
The electronic marco extension tube is designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.
The extension tubes have no optics. They are mounted in between the camera body and lens to create more distance between the lens and film plane. By moving the lens father away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus.
This item is a 20mm unit. Via the mount, it can be attached onto tripod easily and quickly, will save much and bring convenience.
Features:
Compatible with all EOS EF / EFS lens and camera with EF/EF-S mount
Length: 20mm
Material: metal bayonet & plastic body
Diameter: approx. 62mm
Two protector caps
With electronic contacts, it supports automatic focus, automatic exposure.
Package Includes:
1 x electronic marco extension tube (20mm)
2 x protector cap
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