CamDesign Macro Three-Ring Extension Tube for Macro Photography

Using the Macro Three-Ring Extension Tube from CamDesign allows the user to photograph at shorter distances to the subject making it a great accessory for macro photography without having to buy new glass. It's a cheap way to turn any lens into a macro lens. To shorten the focusing distance, use a combination of the rings or any of the rings individually. Because the extension tube has no optical features, it will not alter quality of the lenses. These extension rings will not work with autofocus so manual focus is required giving you the most control over focusing at close distances.

How to attach/detach extension tube:

To attach the CamDesign Macro Three-Ring Extension Tube to your DSLR body, first align the red dot on the narrow end to the red dot on the DSLR. Turn clockwise until you hear a click.
To attach the extension tube to the lens, simply align the red dot on the wider end to the white dot on the lens and turn clockwise until you hear a click. Tighten the knob to secure the two together.

To detach the CamDesign Macro Three-Ring Extension Tube from your lens, simply push the silver knob towards the body of the camera and turn lens counter-clockwise to release.
To detach the extension tube from the DSLR body, use the release button, hold the base of the extension tube, and turn counter-clockwise.

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