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EP0342627A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Pseudo format camera system

Assignee: Minolta Co Ltd
•
Filing: 1989-05-17
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Granted: —
•
Expires: 2009-05-17
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Abstract

Abstract A pseudo format camera system comprises a film cartridge including a memory which stores film speed data and limitation data, and a camera including a means for setting pseudo focal length, a means for inputting the film speed data and the limitation data from the memory, a means for controlling exposure based on the film speed data, and a means for limiting the pseudo focal length depending on the limitation data. In this camera system, the pseudo focal length can be limited based on the limitation data stored in the memory in the film cartridge, and therefore it is surely prevented that a picture becomes rough because of a bad grainness of a film.

Inventors

  • 👤 Nobuyuki C/O Minolta Camera K.K. Taniguchi
  • 👤 Manabu C/O Minolta Camera K.K. Inoue
  • 👤 Toshihiko C/O Minolta Camera K.K. Ishimura
  • 👤 Toshio C/O Minolta Camera K.K. Yamaki
  • 👤 Reiji C/O Minolta Camera K.K. Seki
  • 👤 Atsushi C/O Minolta Camera K.K. Sumitani

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 05:50
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/24; G03B7/08; G03B7/091; G03B7/097

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 88 words
A pseudo format camera system comprising: a film cartridge including a film chamber in which a film is contained and a memory which stores film speed data and limitation data thereof; and a camera having a portion to be attached said film cartridge and including; means for setting pseudo focal length, means for inputting the film speed data and the the limitation data from the memory, means for controlling exposure depending on the film speed data; and means for limiting the pseudo focal length depending the limitation data.
Claim 2
Dependent Claim 88 words
A pseudo format camera system comprising: a film cartridge including a film chamber in which a film is contained and a memory which stores film speed data and limitation data thereof; and a camera having a portion to be attached said film cartridge and including; means for setting pseudo focal length, means for inputting the film speed data and the the limitation data from the memory, means for controlling exposure depending on the film speed data; and means for limiting the pseudo focal length depending the limitation data.
Claim 3
Dependent Claim 22 words
A pseudo format camera system as claimed in Claim 1, wherein the memory included in said film cartridge is a semiconductor memory.
Claim 4
Dependent Claim 16 words
A pseudo format camera system as claimed in Claim 2, wherein the memory is an E²PROM.

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