Lens Focus Calibration Chart Film Pattern Calibrating PET Or Aluminium Oxide Chess Board 1818 (5050), Aluminium Oxide

Description

• 1818 small blocks printed on 50 * 50 mm square glass board (total), the size of a single black square is 2 mm.
• Aluminium oxide layer on glass base.
• Optical calibrator for film, lens, slide, projector etc.
• Alignment card Calibration board
• Chess board pattern calibrater
• Checkered pattern

Lens focus calibration,
Screen printing film alignment,
Projector, slide calibration,
precision is 20m.
1818 small blocks(edge length 2mm square),
Aluminium oxide layer on glass base.

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