| Pro Optic Auto Extension Tube Set for Canon EOS | 
| Brand: Pro Optic
Category: Photography
Buy New: $75.00
as of 5/20/2012 04:37 MST details
New (2) from $75.00
Seller: Accestore
Media: Electronics
Shipping Weight (lbs): 0.5
MPN: POAETEOS
ASIN: B005GI6F50
Availability: Usually ships in 1-2 business days
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| Features:
| • | 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 . They are exceptionally useful for macro photography, Suggested to use on a Macro lens. |
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Product Description
Contains three METALtubes of different length (31mm,21mm & 13mm) which can be combined in seven ways to obtain various magnification. Perfect coupling with TTL metering and AE mechanisms. Full auto focusing with Canon EOS Cameras. 1. When using extension tubes the lens will not focus to infinity. The focus range will be greatly limited to a very close focusing distance. 2. There is light fall off when using any extension tube, sometimes the equivalent of 3 f-stops of light is lost when using multiple extension tubes together. This light lost can affect the camera's ability to auto focus. Manual focusing is recommended should the lens begin to "hunt" (not lock onto the subject). 3. Auto Extension Tubes are not auto focus compatible with Canon EF-S lenses
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