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ProTama Auto Focus Macro Extension Tube Set For Canon EOS EF/EFS Lens.
This is used by attaching between camera body and lens of the 35mm single-lens reflex camera. It comes with a set of 3 tubes of different length which singly or in combination. 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 (make it appear larger in the viewfinder and in your pictures). 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 len is forced to focus.
This is used by attaching between camera body and lens of the 35mm single-lens reflex camera. It comes with a set of 3 tubes of different length which singly or in combination. 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 (make it appear larger in the viewfinder and in your pictures). 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 len is forced to focus.
| Diaphragm Coupling | 12mm - Perfect Coupling 20mm - Perfect Coupling 36mm - Perfect Coupling |
| TTL.EE Metering | 12mm - Perfect Coupling 20mm - Perfect Coupling 36mm - Perfect Coupling |
| Length of Tubes | Approx. 12mm Approx. 20mm Approx. 36mm |
| Diameter of Tubes | Approx. 62mm Approx. 62mm Approx. 62mm |
| Weight | 12mm ~ 72g 20mm ~ 84g 36mm ~ 112g |
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