JPS53107824A - Front focusing photographic lens - Google Patents

Front focusing photographic lens

Info

Publication number
JPS53107824A
JPS53107824A JP2249277A JP2249277A JPS53107824A JP S53107824 A JPS53107824 A JP S53107824A JP 2249277 A JP2249277 A JP 2249277A JP 2249277 A JP2249277 A JP 2249277A JP S53107824 A JPS53107824 A JP S53107824A
Authority
JP
Japan
Prior art keywords
photographic lens
front focusing
focusing photographic
groups
tripplet
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.)
Granted
Application number
JP2249277A
Other languages
Japanese (ja)
Other versions
JPS6153694B2 (en
Inventor
Hideo Yokota
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2249277A priority Critical patent/JPS53107824A/en
Publication of JPS53107824A publication Critical patent/JPS53107824A/en
Publication of JPS6153694B2 publication Critical patent/JPS6153694B2/ja
Granted legal-status Critical Current

Links

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  • Lenses (AREA)

Abstract

PURPOSE: To prevent the degradation in various aberrations when focus is controlled to the subject of a short distance by so combining lenses consisting of four groups as to satisfy specific conditions to form a deformed tripplet and moving the first, second groups integrally.
COPYRIGHT: (C)1978,JPO&Japio
JP2249277A 1977-03-02 1977-03-02 Front focusing photographic lens Granted JPS53107824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2249277A JPS53107824A (en) 1977-03-02 1977-03-02 Front focusing photographic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2249277A JPS53107824A (en) 1977-03-02 1977-03-02 Front focusing photographic lens

Publications (2)

Publication Number Publication Date
JPS53107824A true JPS53107824A (en) 1978-09-20
JPS6153694B2 JPS6153694B2 (en) 1986-11-19

Family

ID=12084219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2249277A Granted JPS53107824A (en) 1977-03-02 1977-03-02 Front focusing photographic lens

Country Status (1)

Country Link
JP (1) JPS53107824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020027206A (en) * 2018-08-14 2020-02-20 株式会社タムロン Lens optical system and image capturing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020027206A (en) * 2018-08-14 2020-02-20 株式会社タムロン Lens optical system and image capturing device

Also Published As

Publication number Publication date
JPS6153694B2 (en) 1986-11-19

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