Definition: opaque tube, either cylindrical, square of funnel shaped, use to shield a lens from stray light outside the field of view.
Definition: A short conical shaped tube that attaches to the front of a lens to shield it from extraneous light. Helps prevent lens flare, ghost images and loss of contrast. An inexpensive must have accessory for your camera system.
Definition: A short conical shaped tube that attaches to the front of a lens to shield it from extraneous light. Helps prevent lens flare, ghost images and loss of contrast. An inexpensive must have accessory for your camera system.
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