| 摘要 |
PROBLEM TO BE SOLVED: To obtain a film unit provided with a lens capable of obtaining a picture whose quality is higher than the film nit provided with the lens to which 135 film is loaded without setting a focal distance for a wide angle more than needed and without lowering exposure even though a Brownie film is loaded. SOLUTION: As to this film unit; unexposed Brownie film is previously loaded and the conditional expressions of f>=45, F<=12, and f<2> /F<=6.67×T are satisfied, provided that the focal distance (mm) of a photographic lens is defined as (f), a stop value is defined as F, and the diagonal length (mm) of a photographic picture frame is defined as T.
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