FOTGA Auto Focus Macro Extension Tube Set 10mm 16mm for Nikon 1 Mount J5 J4 J3

Electronic automatic macro extension tube 10mm+16mm DG set for Nikon 1 mount
Diameter of the tubes: Approx. 61.5mm
Tube length: 10mm,16mm.
Introduction:
This automatic macro Extension Tube Set DG 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).
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 DG 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 farther 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.
Specification:
It comes as a set (10mm+16mm). It contains 2pcs tubes in different length 10mm/16mm,and each tube can work alone.
It is 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.
Electronic contacts is well-built,smooth transmitting signal
Diameter of the tubes: Approx. 61.5mm
Tube length: 10mm,16mm.
Weight:approx.56g
Metal mount part,and plastic body
Smooth design
Suitable for:
Camera and lens with Nikon 1 mount
Nikon1 J1,J2,J3,etc
Package including:
Fotga Electronic automatic macro extension tube 10mm+16mm set for Nikon 1 mount X 1