GB2141273B - Method and apparatus for correlating depth of photographic field with maximum useable lens aperture setting - Google Patents

Method and apparatus for correlating depth of photographic field with maximum useable lens aperture setting

Info

Publication number
GB2141273B
GB2141273B GB08407321A GB8407321A GB2141273B GB 2141273 B GB2141273 B GB 2141273B GB 08407321 A GB08407321 A GB 08407321A GB 8407321 A GB8407321 A GB 8407321A GB 2141273 B GB2141273 B GB 2141273B
Authority
GB
United Kingdom
Prior art keywords
lens aperture
aperture setting
photographic field
maximum useable
useable lens
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB08407321A
Other versions
GB8407321D0 (en
GB2141273A (en
Inventor
George A Wallace
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8407321D0 publication Critical patent/GB8407321D0/en
Publication of GB2141273A publication Critical patent/GB2141273A/en
Application granted granted Critical
Publication of GB2141273B publication Critical patent/GB2141273B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/0005—Hand manipulated computing devices characterised by a specific application
    • G06G1/0042—Hand manipulated computing devices characterised by a specific application for optics, for photography

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Exposure Control For Cameras (AREA)
  • Eyeglasses (AREA)
  • Diaphragms For Cameras (AREA)
  • Accessories Of Cameras (AREA)
  • Studio Devices (AREA)
GB08407321A 1983-03-25 1984-03-21 Method and apparatus for correlating depth of photographic field with maximum useable lens aperture setting Expired GB2141273B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47868483A 1983-03-25 1983-03-25

Publications (3)

Publication Number Publication Date
GB8407321D0 GB8407321D0 (en) 1984-04-26
GB2141273A GB2141273A (en) 1984-12-12
GB2141273B true GB2141273B (en) 1987-04-01

Family

ID=23900960

Family Applications (2)

Application Number Title Priority Date Filing Date
GB08407321A Expired GB2141273B (en) 1983-03-25 1984-03-21 Method and apparatus for correlating depth of photographic field with maximum useable lens aperture setting
GB08606528A Expired GB2172723B (en) 1983-03-25 1986-03-17 Method for correlating depth of photographic field with maximum useable lens aperture setting

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08606528A Expired GB2172723B (en) 1983-03-25 1986-03-17 Method for correlating depth of photographic field with maximum useable lens aperture setting

Country Status (6)

Country Link
JP (1) JPS6011823A (en)
CA (1) CA1218891A (en)
DE (1) DE3410835A1 (en)
FR (1) FR2543329A1 (en)
GB (2) GB2141273B (en)
SE (1) SE450428B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266861A (en) * 1985-09-19 1987-03-26 松永　是 Sterilizing reactor
GB2212955B (en) * 1987-11-26 1992-08-12 Frank John Allford Gilham Photographic depth of field indicator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB224930A (en) * 1923-07-16 1924-11-17 John R Hewett Photographic exposure calculator
GB569247A (en) * 1943-05-19 1945-05-15 Robert Townend Improvements in computating devices for photography
GB630786A (en) * 1945-10-01 1949-10-21 Joseph Antoine Legris Improvements in or relating to photographic exposure calculators
US2445008A (en) * 1946-10-29 1948-07-13 Smidt Arnold Calculator
FR1103403A (en) * 1947-02-13 1955-11-03 Universal depth of field calculator
GB924991A (en) * 1959-05-04 1963-05-01 Sangamo Weston Improvements in or relating to photographic exposure meters
GB1517742A (en) * 1975-09-19 1978-07-12 Samuelson Film Serv Ltd Photographic depth-of-field calculators
JPS634193Y2 (en) * 1975-11-06 1988-02-02

Also Published As

Publication number Publication date
SE8401610L (en) 1984-09-26
SE8401610D0 (en) 1984-03-22
GB8606528D0 (en) 1986-04-23
SE450428B (en) 1987-06-22
GB2172723A (en) 1986-09-24
GB2172723B (en) 1987-07-01
GB8407321D0 (en) 1984-04-26
FR2543329A1 (en) 1984-09-28
GB2141273A (en) 1984-12-12
DE3410835A1 (en) 1984-10-04
CA1218891A (en) 1987-03-10
JPS6011823A (en) 1985-01-22

Similar Documents

Publication Publication Date Title
DE3160041D1 (en) Method for high contrast development of photographic elements
EP0148477A3 (en) Exposure apparatus and method of aligning exposure mask with workpiece
DK307784A (en) PROCEDURE AND APPARATUS FOR STARTING AN ENGINE-COMBUTED THYRISTOR EXCHANGER
DE3564041D1 (en) Method and apparatus for copying photographic originals
DE3380187D1 (en) Optical distance-measuring method and apparatus therefor
DK159817C (en) METHOD AND APPARATUS FOR CREATION OF GLASS FILMS
GB2151366B (en) Photographic apparatus and measurement method of exposure conditions
DK295684D0 (en) IMAGE PROCEDURE AND APPARATUS APPLICATION
GB2111208B (en) Methods of and apparatus for relatively positioning two submerged elements
GB2081437B (en) Optical triangulation apparatus and method
EP0087296A3 (en) Apparatus and method for generating optimizing pictures under low light conditions
GB2129366B (en) Light reflector apparatus and method of making same
JPS5345539A (en) Apparatus for and method of multiicolor light scanning
GB2141273B (en) Method and apparatus for correlating depth of photographic field with maximum useable lens aperture setting
JPS56164337A (en) Photographic film unit and method of producing same
GB2128333B (en) Method and apparatus for forming photographic record of sound field
JPS5664604A (en) Correction method of and apparatus for optical devices
IT1155603B (en) METHOD AND EQUIPMENT FOR AUTOMATIC JOINTING OF FILMS
GB2040484B (en) Method of automatically adjusting an image reproducing apparatus
DK161615C (en) METHOD AND APPARATUS FOR SIZE INDEPENDENT POSITIONING OF FLAT FISH
JPS52143595A (en) Method of and device for automatically cutting lens
DE3465633D1 (en) Method of positioning light receiving end of light conductor at focal point of lens and apparatus therefor
DE3068912D1 (en) Optical element adjustment apparatus and method
JPS57204533A (en) Photographic copying method and apparatus
BE891140A (en) METHOD AND DEVICE FOR AVOIDING THE VEILING OF PARTS OF EXPOSED PHOTOGRAPHIC FILMS

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee