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Ground-Glass Back

Assembly

Spring-loaded frame holding a ground-glass focusing screen exactly where the film will sit, displaced when a holder slides in. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Ground-Glass Back parts and their functions

6 top-level parts · 8 parts in total · full bill of materials below
Ground-Glass Back parts diagram: 1 ground glass, 2 fresnel brightening screen, 3 back tension springs, 4 rotating back frame, 5 focusing hood, 6 graflok slider. 8 parts in 6 top-level items.
Ground-Glass Back parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Ground Glass 1× Etched glass screen with grid lines and clipped corners, showing the image inverted and reversed.
2 Fresnel Brightening Screen 1× Fresnel lens behind the ground glass that evens out corner brightness for composing.
3 Back Tension Springs 2× Leaf springs that press the screen to the film-plane reference and admit a film holder under tension.
4 Rotating Back Frame 1× Frame that rotates or reverses between landscape and portrait without remounting the camera.
5 Focusing Hood 1× Folding shade (or dark cloth) that blocks ambient light while focusing on the dim screen.
6 Graflok Slider 2× Sliding lock bars that retain roll-film and instant-film backs against the camera body.

3D model

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Build & assembly graph

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Bill of materials for Ground-Glass Back

6 top-level lines · 6 rows shown · 8 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Ground Glass large-format-view-camera-ground-glass 1× 1 · part
2 Fresnel Brightening Screen large-format-view-camera-fresnel 1× 1 · part
3 Back Tension Springs large-format-view-camera-back-springs 2× 2 · part
4 Rotating Back Frame large-format-view-camera-back-frame 1× 1 · part
5 Focusing Hood large-format-view-camera-hood 1× 1 · part
6 Graflok Slider large-format-view-camera-graflok-slider 2× 2 · part

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Where the ground-glass back is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks