Extension tubes are 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 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 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.
12mm + 20mm + 36mm Three RING Set
|Diaphragm Coupling||Perfect Coupling|
|Maximum Outer Diameter||2.4 in (62mm)|
|Warranty||1 Year Limited Warranty|
The Nikon PK-11A Auto Extension Tube provides 8mm of extension, and can be used with...
The Nikon PK-12 Auto Extension Tube provides 14mm of extension, and can be used with...
The Olympus EX-25 Extension Tube is designed exclusively for use with Olympus Four Thirds single-lens-reflex...
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