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File:Canon nFD mount features.svg

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Summary

Description
English: As described in a brochure published by Canon in 1978:
  • Automatic/Manual Aperture Lever - stops down the lens to the selected aperture when the exposure is taken; this can be moved anti-clockwise to lock it in place for manual diaphragm operation (for instance, when mounting on an early body with R-mount)
  • Aperture Signal Lever - transmits preset aperture to body
  • Full Aperture Signal Pin - provides the maximum aperture of the lens that is mounted
  • EE Switch Pin - signals body when the aperture ring is set to "A" (for shutter-priority autoexposure)
  • Reserved - for future use
Date
Source Own work
Author Mliu92
Other versions This file was derived from: Canon FD lens rear.jpg: 

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Captions

Lens mount of Canon New FD 50 mm f/1.8, with labels added to show features

Items portrayed in this file

depicts

inception

20 August 2024

File history

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Date/TimeThumbnailDimensionsUserComment
current14:55, 20 August 2024Thumbnail for version as of 14:55, 20 August 2024410 × 410 (1,002 KB)Mliu92Uploaded own work with UploadWizard
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