Roelf Backus:
Olympus Trip 35 (1968)
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Yashica Electro GS (1970)
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Canon AE-1 (1976)
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Soligor Fisheye Lens
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Old Photo & Film stuff
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Photo reproduction equipment
Roelf Backus:
Leitz Summar f=120mm 1:4,5
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Focal plane shutter (1930)
Roelf Backus:
Summar diafragm_2