| 摘要 |
A photographic enlarger comprises a housing having a light outlet opening and a condenser at such opening adapted to illuminate a negative to be enlarged. A first light source mounted in the housing is a full-sized lamp. A second light source mounted in the housing is a flash-light. A shutter is pivotally mounted in the housing and has one position in which it blocks light from the second light source and directs light from the first light source through the condenser, and another position in which it blocks light from the first light source and directs light from the second light source through the condenser.
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