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Canon EF-S 55-250mm f/4-5.6 IS II Lens. The Canon EF-S 55-250mm f/4-5.6 IS II ... A manual focus ring is located at the front of the lens, just behind the ...
The Canon EF 85mm f/1.8 USM lens has many features that I wish my Canon EF 50mm f/1.8 II lens had. It has the following features lacking in the 50mm lens: ...
Canon EF 55-200mm f/4.5-5.6 USM. The Canon EF 55-200mm f/4.5-5.6 USM ... The lens hood is really a required accessory if you do any amount of manual focus at all.
This lens has Canon's ultrasonic motor (USM), which is silent and fast. I cannot hear the lens auto-focus. It supports full-time manual focus, which means you ...
The auto-focus mechanism on this lens is based on Canon's micro motor. It is noisy and doesn't sound very smooth. In low-light and low-contract situation, it ...
Canon Battery Pack LP-E8 Pinout. The Canon Battery Pack LP-E8 is a Li-ion 7.2v battery with a capacity of 1120 mAh (8.1Wh). Photo below shows the Canon ...
When you switch it to MF, the camera does not perform auto-focus and leaves manual focus up to you. The Canon EF 50mm f/1.4 USM lens has an ultrasonic motor ( ...
With USM, the manual focus ring is always mechanically engaged to the focus mechanism. That means you and manually adjust focus after AF is achieved without ...
Using auto teleconverters and auto extension tubes with manual lenses. A few years ago, my friend was working for a telescope company.