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Computar COMPUTAR CBF-1
CBF-1
COMPUTAR CBF-1
COMPUTAR CBF-1 Neutral Density Filter with case for Back-Focus Adjustments
List Price: $107.00
Your Price: $62.00
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Detailed Description

COMPUTAR CBF-1 is a high quality neutral density filter for camera back-focus adjustments. Protective case and instructions included. Used to set up Ganz Cameras and Computar Lenses as well as any C-mount and CS-mount cameras with Lenses.
The COMPUTAR CBF-1 Neutral Density Filter is used primarily to make the proper back focus adjustments when installing motorized zoom lenses. To assure that a Computar zoom lens stays in focus throughout the zoom range, the camera must be backfocused when lens iris is wide open. The Computar CBF-1  is placed in front of the lens to keep the auto-iris open during adjustment. The Computar CBF-1 filter is 4" x 4" square and made of glass - not plastic - and has an ND rating of 3.0. The Computar CBF-1 filter is an essential tool for the professional installer. Protective case included.
 
 

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     Which lens do I need?
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