IT1242230B - Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing - Google Patents

Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing

Info

Publication number
IT1242230B
IT1242230B IT12528A IT1252890A IT1242230B IT 1242230 B IT1242230 B IT 1242230B IT 12528 A IT12528 A IT 12528A IT 1252890 A IT1252890 A IT 1252890A IT 1242230 B IT1242230 B IT 1242230B
Authority
IT
Italy
Prior art keywords
developing
block
camera
instantaneous
diaphragm
Prior art date
Application number
IT12528A
Other languages
Italian (it)
Other versions
IT9012528A1 (en
IT9012528A0 (en
Inventor
Luigi Carpi
Original Assignee
Luigi Carpi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luigi Carpi filed Critical Luigi Carpi
Priority to IT12528A priority Critical patent/IT1242230B/en
Publication of IT9012528A0 publication Critical patent/IT9012528A0/en
Publication of IT9012528A1 publication Critical patent/IT9012528A1/en
Application granted granted Critical
Publication of IT1242230B publication Critical patent/IT1242230B/en

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Landscapes

  • Photographic Developing Apparatuses (AREA)
  • Studio Devices (AREA)

Abstract

With this apparatus it is possible to adjust the diaphragms of a camera for photographs of the type for instantaneous developing, on the basis of the ambient temperature and in accordance with the characteristic film tables supplied by the film manufacturers. With said apparatus it is also possible to vary the developing time of the photograph depending on the ambient temperature, again in accordance with the abovementioned tables. The ambient temperature is converted into voltage (block 5), amplified (block 6) and the maximum values limited (block 7) and minimum values limited (block 8). It is then compared (block 10) with the time lapsed (block 9). A display (block 14) indicates the modifications to be made to the shutter of the camera. A sound is emitted (block 12) to indicate the end of the developing time. <IMAGE>
IT12528A 1990-10-23 1990-10-23 Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing IT1242230B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT12528A IT1242230B (en) 1990-10-23 1990-10-23 Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT12528A IT1242230B (en) 1990-10-23 1990-10-23 Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing

Publications (3)

Publication Number Publication Date
IT9012528A0 IT9012528A0 (en) 1990-10-23
IT9012528A1 IT9012528A1 (en) 1992-04-23
IT1242230B true IT1242230B (en) 1994-03-03

Family

ID=11141231

Family Applications (1)

Application Number Title Priority Date Filing Date
IT12528A IT1242230B (en) 1990-10-23 1990-10-23 Apparatus for adjusting in an optimum manner the diaphragm of a camera and for timing the developing of positive films for instantaneous developing

Country Status (1)

Country Link
IT (1) IT1242230B (en)

Also Published As

Publication number Publication date
IT9012528A1 (en) 1992-04-23
IT9012528A0 (en) 1990-10-23

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Legal Events

Date Code Title Description
0001 Granted