Auto Focus Macro Extension Tube Set for Nikon

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The Extension Tube Set for NiKon is designed specifically for use with Nikon digital SLR cameras, can transform your Lens into a Macro Lens. It moves the lens from the film or digital sensor. The closer the focus is, the greater the magnification. The extension tube does not affect image quality as there is no optics inside. In comparison, a close up filter is often blamed for degrading the quality of image.
This tube set contains three piece tubes of different length -- 12mm, 20mm, and 36 mm -- which can be used individually or in any combination to obtain the desired magnification. These extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with most Nikon lenses, given there is enough light to activate the cameras AF system properly.

Specification:

• Compatible with all Nikon SLR cameras
• Image Magnification Ratio= (Length of Extension tube + Master Lens Advance Volume)/Master Lens Focal Length
• Exposure Factor= (1+Image Magnification Ratio)²
• Tubes Materials: ABS
• Weight: 370g

Contains:

• Auto-Focus Macro Extension Tube Set for Nikon x1
• Front & Rear Caps x1
• Original Manufactory Package

The Price is $69.98.