JP2013235060A5 - - Google Patents

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Publication number
JP2013235060A5
JP2013235060A5 JP2012106033A JP2012106033A JP2013235060A5 JP 2013235060 A5 JP2013235060 A5 JP 2013235060A5 JP 2012106033 A JP2012106033 A JP 2012106033A JP 2012106033 A JP2012106033 A JP 2012106033A JP 2013235060 A5 JP2013235060 A5 JP 2013235060A5
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JP
Japan
Prior art keywords
lens
zoom
zoom lens
focal length
refractive power
Prior art date
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Application number
JP2012106033A
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Japanese (ja)
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JP5896825B2 (en
JP2013235060A (en
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Priority to JP2012106033A priority Critical patent/JP5896825B2/en
Priority claimed from JP2012106033A external-priority patent/JP5896825B2/en
Publication of JP2013235060A publication Critical patent/JP2013235060A/en
Publication of JP2013235060A5 publication Critical patent/JP2013235060A5/ja
Application granted granted Critical
Publication of JP5896825B2 publication Critical patent/JP5896825B2/en
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Claims (16)

  1. In order from the object side to the image side, the first lens group having a positive refractive power, the second lens group having a negative refractive power, the third lens group having a positive refractive power, and a rear group including one or more lens groups. In zoom lenses where the distance between lens groups changes during zooming,
    The rear group has a final lens group having a positive refractive power on the most image side, and at least the first lens group and the final lens group move during zooming, and the focal length of the entire system at the telephoto end is fT. When the back focus at the end is TBk and the focal length of the second lens group is f2,
    30.0 <fT / TBk <260.0
    25.0 <fT / | f2 | <45.0
    A zoom lens satisfying the following conditional expression:
  2. An aperture stop is provided between the second lens group and the third lens group, the amount of movement of the third lens group in the optical axis direction during zooming from the wide-angle end to the telephoto end is M3, and the optical axis of the aperture stop When the amount of movement in the direction is MS,
    0.40 <MS / M3 <0.70
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  3. When the amount of movement of the first lens unit in the optical axis direction during zooming from the wide-angle end to the telephoto end is M1, and the amount of movement of the final lens unit in the optical axis direction is MF,
    −55.0 <M1 / MF <−6.0
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  4. When the lateral magnification of the final lens group at the wide-angle end is βFW and the lateral magnification of the final lens group at the telephoto end is βFT,
    0.60 <βFW / βFT <1.00
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  5. When the focal length of the entire system at the wide angle end is fW and the focal length of the first lens group is f1,
    20.0 <f1 / fW <30.0
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  6. When the focal length of the third lens group is f3,
    9.0 <fT / f3 <25.0
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  7. When the focal length of the final lens group is fF,
    6.0 <fT / fF <13.0
    The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
  8.   The zoom lens according to claim 1, wherein the rear group includes a fourth lens group having a positive refractive power.
  9.   8. The rear group includes, in order from the object side to the image side, a fourth lens group having a positive refractive power and a fifth lens group having a positive refractive power. The zoom lens according to item.
  10. When the focal length of the final lens group is fF and the focal length of the fourth lens group is f4,
    0.050 <fF / f4 <0.50
    The zoom lens according to claim 9, wherein the following conditional expression is satisfied.
  11. 8. The rear group includes, in order from the object side to the image side, a fourth lens group having a negative refractive power and a fifth lens group having a positive refractive power. The zoom lens according to item.
  12. When the focal length of the fourth lens group is f4,
    −0.80 <fF / f4 <−0.40
    The zoom lens according to claim 11, wherein the following conditional expression is satisfied.
  13. The zoom lens according to any one of claims 1 to 12 , wherein the final lens group moves during focusing from an object at infinity to an object at a short distance.
  14. The zoom lens according to any one of claims 9 to 12 , wherein the fourth lens group and the fifth lens group move during focusing from an object at infinity to an object at a short distance .
  15. The zoom lens according to any one of claims 9 to 12 , wherein the fourth lens group moves during focusing from an object at infinity to an object at a short distance .
  16.   An image pickup apparatus comprising: the zoom lens according to claim 1; and a solid-state image pickup device that receives an image formed by the zoom lens.
JP2012106033A 2012-05-07 2012-05-07 Zoom lens and imaging apparatus having the same Active JP5896825B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012106033A JP5896825B2 (en) 2012-05-07 2012-05-07 Zoom lens and imaging apparatus having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012106033A JP5896825B2 (en) 2012-05-07 2012-05-07 Zoom lens and imaging apparatus having the same

Publications (3)

Publication Number Publication Date
JP2013235060A JP2013235060A (en) 2013-11-21
JP2013235060A5 true JP2013235060A5 (en) 2015-06-25
JP5896825B2 JP5896825B2 (en) 2016-03-30

Family

ID=49761248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012106033A Active JP5896825B2 (en) 2012-05-07 2012-05-07 Zoom lens and imaging apparatus having the same

Country Status (1)

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JP (1) JP5896825B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004703A1 (en) 2013-07-12 2015-01-15 パナソニックIpマネジメント株式会社 Zoom lens system, imaging device, and camera
JP6319320B2 (en) 2013-11-22 2018-05-09 株式会社ニコン Zoom lens and optical equipment
WO2015075948A1 (en) * 2013-11-25 2015-05-28 株式会社ニコン Zoom lens, optical instrument, and method for manufacturing zoom lens
JP6347098B2 (en) * 2013-11-25 2018-06-27 株式会社ニコン Zoom lens and optical equipment
JP6354158B2 (en) * 2013-12-26 2018-07-11 株式会社ニコン Zoom lens and optical device
JP6269049B2 (en) * 2013-12-26 2018-01-31 株式会社ニコン Zoom lens and optical device
JP6598599B2 (en) 2015-09-02 2019-10-30 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP6555336B2 (en) * 2017-12-28 2019-08-07 株式会社ニコン Zoom lens, optical device, and method of manufacturing zoom lens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5366447B2 (en) * 2008-06-06 2013-12-11 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP5436100B2 (en) * 2009-08-31 2014-03-05 キヤノン株式会社 Zoom lens and imaging apparatus having the same
KR101630282B1 (en) * 2009-09-09 2016-06-14 삼성전자주식회사 Zoom lens and image pickup device having the same
JP5541663B2 (en) * 2009-10-06 2014-07-09 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP2012048199A (en) * 2010-07-28 2012-03-08 Panasonic Corp Zoom lens system, image pickup device, and camera

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