JPS574017A - Auxiliary lens system for photographic objective lens - Google Patents

Auxiliary lens system for photographic objective lens

Info

Publication number
JPS574017A
JPS574017A JP6838981A JP6838981A JPS574017A JP S574017 A JPS574017 A JP S574017A JP 6838981 A JP6838981 A JP 6838981A JP 6838981 A JP6838981 A JP 6838981A JP S574017 A JPS574017 A JP S574017A
Authority
JP
Japan
Prior art keywords
photographic objective
auxiliary
objective lens
lens
lens system
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.)
Pending
Application number
JP6838981A
Other languages
English (en)
Japanese (ja)
Inventor
Deitsuku Ruutobuihi
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.)
EUMIG ELEKTRIZITATS und METALLWAREN INDUSTRIE GESELLSCHAFT
Original Assignee
EUMIG ELEKTRIZITATS und METALLWAREN INDUSTRIE GESELLSCHAFT
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 EUMIG ELEKTRIZITATS und METALLWAREN INDUSTRIE GESELLSCHAFT filed Critical EUMIG ELEKTRIZITATS und METALLWAREN INDUSTRIE GESELLSCHAFT
Publication of JPS574017A publication Critical patent/JPS574017A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP6838981A 1980-05-08 1981-05-08 Auxiliary lens system for photographic objective lens Pending JPS574017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT244280A ATA244280A (de) 1980-05-08 1980-05-08 Vorsatzsystem fuer ein aufnahmeobjektiv

Publications (1)

Publication Number Publication Date
JPS574017A true JPS574017A (en) 1982-01-09

Family

ID=3534424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6838981A Pending JPS574017A (en) 1980-05-08 1981-05-08 Auxiliary lens system for photographic objective lens

Country Status (4)

Country Link
JP (1) JPS574017A (de)
AT (1) ATA244280A (de)
DE (1) DE3117359A1 (de)
FR (1) FR2492117A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021139976A (ja) * 2020-03-03 2021-09-16 キヤノン株式会社 アタッチメント光学系、光学系、および光学系の製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015067925A1 (en) * 2013-11-06 2015-05-14 Nauticam International Limited A macro conversion lens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1033010A (fr) * 1951-02-22 1953-07-07 équipement pour prises de vues sous-marines
DE1045682B (de) * 1954-12-10 1958-12-04 Kamera Werke Niedersedlitz Veb Vorsatzsystem zur Verkuerzung der Objektivbrennweite
FR2124174A1 (en) * 1971-02-10 1972-09-22 Clave Serge Afocal optical system - for portholes and periscopes
AT334108B (de) * 1974-11-22 1976-12-27 Eumig Weitwinkelobjektiv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021139976A (ja) * 2020-03-03 2021-09-16 キヤノン株式会社 アタッチメント光学系、光学系、および光学系の製造方法

Also Published As

Publication number Publication date
FR2492117A1 (fr) 1982-04-16
DE3117359A1 (de) 1982-06-16
ATA244280A (de) 1982-01-15

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