sprocket hole

(redirected from Film perforations)
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sprocket hole

[′spräk·ət ‚hōl]
(engineering)
One of a series of perforations at the edge of a motion picture film, paper tape, or roll of continuous stationery, which are engaged by the teeth of a sprocket wheel to drive the material through some device.
References in periodicals archive ?
Once the film is in position in front of the shutter, pins insert into the film perforations to hold the film steady during its exposure.