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What are the functions of these telescope parts? - tripod clamp smallest

1.Finderscope 10th Tripod Leg Clamp
2. 11th Gate Little Mountain
3. Eye ... Mount
4. The publication is an assembly-13th Primary Mirror Cell
5. Mounting Base / Mounting Plate 14th Tube Telescope
6. Foreigners 15th Leg Tripod Slow Motion Control Lock
7. Tripod Leg Extension 16th Eye Research
8. Brace 17 Tripod. Finder Bracket
9.Accsessory Specialist