Mcoplus AF Auto Focus Macro Extension Tube Adapter Set for Canon EF-M EOS Mirrorless Camera Eos EOS-M M2 M3 M5 M6 M10 M50 M100(10mm,21mm)

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Mcoplus is a well know trademark who specializeing in offering digital camera&photo accessories to worldwide .We try our best to make sure customers have a pleasure shopping experience with us .we supply good quality products and very pretty price.
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Information:
Automatic Extension Tube Set is combined of 2 rings - 10mm, 16mm.
All automatic functions work well and there is no need to set them manually.
As for AF engine and TTL auto exposure in modern lenses there is no need to worry, it works perfectly well with extension rings.
Use these by inserting between the lens and the body of SLR cameras.
Designed with electronic contacts,which make it support automatic focusing,automatic exposure,etc.
It enables you to use all shooting modes of the camera,exposure compensation is required.

Kindly 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).

Package Contents:
1x Macro Extension Tube Set for Canon EOS-M Mount