SIGMA - Sigma 440NA8 Parts
Official parts catalog for the Sigma 28mm F1.8 D EX DG aspherical macro lens in Nikon AF mount, serving as the definitive technical reference for identifying and locating every internal component. The catalog presents detailed exploded diagrams of the complete lens assembly, clearly mapping each part number to its position within the optical and mechanical architecture. You'll find comprehensive parts listing with Sigma reference numbers, English and Japanese technical designations, required quantities per assembly, and cross-reference information. Covers the main focus cam unit, AF gear trains, focus ring mechanisms, all optical glass elements, and precision mounting hardware. Includes specifications for mounting washers available in graduated thicknesses for fine adjustment during reassembly. Essential for optical technicians, repair centers, and lens specialists performing maintenance, component replacement, or precise troubleshooting on this high-performance macro optic. The workshop manual structure makes it straightforward to verify part compatibility and order exact replacement components using Sigma's own designation system.
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Document Details
- Format
- Pages
- 15
- Size
- 641.2 KB
- Category
- Photography