JP2013140307A5

JP2013140307A5 -

Info

Publication number: JP2013140307A5
Application number: JP2012001060A
Authority: JP
Filing date: 2012-01-06
Publication date: 2015-02-19
Anticipated expiration: 2032-01-06

Description

本発明のズームレンズは、物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、正の屈折力の第３レンズ群、負の屈折力の第４レンズ群、正の屈折力の第５レンズ群からなり、ズーミングに際して隣り合うレンズ群の間隔が変化するズームレンズであって、
前記第１レンズ群は１枚の負レンズと１枚の正レンズからなり、広角端における光学全長をＬＤｗ、望遠端における光学全長をＬＤｔ、前記第１レンズ群の焦点距離をｆ１、前記第２レンズ群の焦点距離をｆ２、前記第４レンズ群の焦点距離をｆ４とするとき、
０．１０＜（ＬＤｔ−ＬＤｗ）／ｆ１＜０．３１
０．７０＜ｆ２／ｆ４＜１．２０
なる条件式を満足することを特徴としている。 The zoom lens according to the present invention includes, in order from the object side to the image side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a negative lens having a negative refractive power. the fourth lens group and a positive fifth lens group refractive power, a zoom lens distance of the lens units vary adjacent zooming,
The first lens group is composed of one negative lens and one positive lens, the optical total length at the wide angle end is LDw, the optical total length at the telephoto end is LDt, the focal length of the first lens group is f1, the second When the focal length of the lens group is f2, and the focal length of the fourth lens group is f4,
0.10 <(LDt−LDw) / f1 <0.31
0.70 <f2 / f4 <1.20
It satisfies the following conditional expression.

以下に、本発明の好ましい実施の形態を、添付の図面に基づいて詳細に説明する。本発明のズームレンズは、物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、正の屈折力の第３レンズ群、負の屈折力の第４レンズ群、正の屈折力の第５レンズ群より構成されている。ズーミングに際して、隣り合うレンズ群の間隔が変化する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The zoom lens according to the present invention includes, in order from the object side to the image side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a negative lens having a negative refractive power. It is composed of a fourth lens group and a fifth lens group having a positive refractive power. During zooming, the interval between adjacent lens groups changes.

第４レンズ群Ｌ４は非球面形状のレンズ面を含む負レンズを有し、該負レンズの物体側のレンズ面の曲率半径をＲ４ｏ、像側のレンズ面の曲率半径をＲ４ｉとする。広角端における全系の焦点距離をｆｗとする。第１レンズ群内の正レンズの焦点距離をｆ１ｐとする。このとき、以下の条件式のうち１以上を満足するのが良い。 The fourth lens unit L4 having a negative lens including a lens surface of aspherical shape, the radius of curvature of the lens surface on the object side of the negative lens R4o, the radius of curvature of the lens surface on the image side and R4i. Let fw be the focal length of the entire system at the wide-angle end. Let the focal length of the positive lens in the first lens group be f1p. At this time, it is preferable to satisfy one or more of the following conditional expressions.

条件式（３）は第４レンズ群Ｌ４内の非球面形状のレンズ面を有する負レンズのレンズ形状（近軸形状）を規定したものである。条件式（３）の上限値を超えて、非球面形状のレンズ面を有する負レンズの物体側の面の屈折力が強くなると第４レンズ群Ｌ４の後側主点が物体側に移動し、第５レンズ群Ｌ５の有効径が増大してくる。 Conditional expression (3) defines the lens shape (paraxial shape) of a negative lens having an aspheric lens surface in the fourth lens unit L4. When the refractive power of the object side surface of the negative lens having an aspherical lens surface exceeds the upper limit of conditional expression (3), the rear principal point of the fourth lens unit L4 moves to the object side, The effective diameter of the fifth lens unit L5 increases.

また、非球面形状のレンズ面を有する負レンズの物体側に色消しの為の正レンズを接合する場合、非球面形状のレンズ面を有する負レンズの物体側の面の屈折力が強くなると正レンズのレンズ厚が厚くなり、鏡筒が沈胴した際のレンズ全長が長くなってしまう。逆に下限値を超えて、非球面形状のレンズ面を有する負レンズの像側の面の屈折力が強くなると、特に中間焦点距離においてコマ収差が多く発生し、これを良好に補正する事が困難となる。 Also, when bonding the positive lens for the achromatic object side of the negative lens having a surface of an aspherical shape, the refractive power of the object side surface of the negative lens having a surface of aspherical shape becomes strong positive The lens becomes thicker and the entire length of the lens when the lens barrel is retracted becomes longer. Conversely, when the refractive power of the image side surface of a negative lens having an aspherical lens surface is increased beyond the lower limit value, a lot of coma occurs particularly at the intermediate focal length, and this can be corrected well. It becomes difficult.

［数値実施例１］
単位 mm

面データ
面番号 r d nd νd
1 40.493 1.20 1.80000 29.8
2 23.970 3.83 1.71300 53.9
3 257.458 (可変)
4 33.412 0.90 1.88300 40.8
5 8.388 5.00
6 -29.583 0.90 1.80400 46.6
7 23.914 0.49
8 18.501 2.13 1.92286 18.9
9 177.794 (可変)
10(絞り) ∞ (可変)
11* 13.810 2.58 1.76802 49.2
12* -118.119 1.11
13 11.867 2.70 1.59282 68.6
14 -30.515 0.29
15 66.678 0.90 2.00069 25.5
16 7.801 0.53
17 13.118 2.17 1.51823 58.9
18 -20.350 (可変)
19 134.738 0.90 1.58313 59.4
20* 7.126 (可変)
21 63.675 2.24 1.85135 40.1
22* -18.192 3.58
23 ∞ 1.10 1.51633 64.1
24 ∞ 1.00
像面 ∞

非球面データ
第11面
K =-2.99830e-001 A 4=-5.03231e-005 A 6=-8.63739e-008
A 8=-1.32651e-008 A10= 5.94352e-011

第12面
K = 1.19287e+002 A 4= 1.00585e-004 A 6= 1.58433e-007
A 8=-1.50149e-008 A10= 1.93437e-010

第20面
K = 2.83989e-001 A 4= 1.77690e-004 A 6= 2.12750e-006
A 8=-3.41549e-007 A10= 2.91120e-009

第22面
K = 6.21632e+000 A 4= 4.88902e-005 A 6= 5.83675e-007
A 8= 5.33089e-009 A10= 1.18864e-009

各種データ
ズーム比 4.86
広角中間望遠
焦点距離 6.22 17.59 30.25
Fナンバー 2.06 3.20 3.60
半画角（度） 36.75 14.80 8.74
像高 4.65 4.65 4.65
レンズ全長 66.30 67.88 75.85
BF 5.31 5.31 5.31

d 3 0.34 13.70 23.77
d 9 17.43 6.43 1.67
d10 8.90 2.27 2.15
d18 2.03 5.54 8.10
d20 4.40 6.76 6.97

ズームレンズ群データ
群始面焦点距離
1 1 73.85
2 4 -10.42
3 10 ∞
4 11 11.71
5 19 -12.94
6 21 16.83
7 23 ∞
[Numerical Example 1]
Unit mm

Surface data surface number rd nd νd
1 40.493 1.20 1.80000 29.8
2 23.970 3.83 1.71300 53.9
3 257.458 (variable)
4 33.412 0.90 1.88300 40.8
5 8.388 5.00
6 -29.583 0.90 1.80 400 46.6
7 23.914 0.49
8 18.501 2.13 1.92286 18.9
9 177.794 (variable)
10 (Aperture) ∞ (Variable)
11 * 13.810 2.58 1.76802 49.2
12 * -118.119 1.11
13 11.867 2.70 1.59282 68.6
14 -30.515 0.29
15 66.678 0.90 2.00069 25.5
16 7.801 0.53
17 13.118 2.17 1.51823 58.9
18 -20.350 (variable)
19 134.738 0.90 1.58313 59.4
20 * 7.126 (variable)
21 63.675 2.24 1.85 135 40.1
22 * -18.192 3.58
23 ∞ 1.10 1.51633 64.1
24 ∞ 1.00
Image plane ∞

Aspheric data 11th surface
K = -2.99830e-001 A 4 = -5.03231e-005 A 6 = -8.63739e-008
A 8 = -1.32651e-008 A10 = 5.94352e-011

12th page
K = 1.19287e + 002 A 4 = 1.00585e-004 A 6 = 1.58433e-007
A 8 = -1.50149e-008 A10 = 1.93437e-010

20th page
K = 2.83989e-001 A 4 = 1.77690e-004 A 6 = 2.12750e-006
A 8 = -3.41549e-007 A10 = 2.91120e-009

22nd page
K = 6.21632e + 000 A 4 = 4.88902e-005 A 6 = 5.83675e-007
A 8 = 5.33089e-009 A10 = 1.18864e-009

Various data Zoom ratio 4.86
Wide angle Medium Telephoto focal length 6.22 17.59 30.25
F number 2.06 3.20 3.60
Half angle of view (degrees) 36.75 14.80 8.74
Image height 4.65 4.65 4.65
Total lens length 66.30 67.88 75.85
BF 5.31 5.31 5.31

d 3 0.34 13.70 23.77
d 9 17.43 6.43 1.67
d10 8.90 2.27 2.15
d18 2.03 5.54 8.10
d20 4.40 6.76 6.97

Zoom lens group data group Start surface Focal length
1 1 73.85
2 4 -10.42
3 10 ∞
4 11 11.71
5 19 -12.94
6 21 16.83
7 23 ∞

［数値実施例２］
単位 mm

面データ
面番号 r d nd νd
1 40.066 1.20 1.90366 31.3
2 23.509 4.53 1.71300 53.9
3 744.323 (可変)
4 61.726 0.90 1.88300 40.8
5 9.649 5.31
6 -31.049 0.90 1.69680 55.5
7 32.766 0.09
8 19.600 2.13 1.92286 18.9
9 82.668 (可変)
10(絞り) ∞ (可変)
11* 10.517 2.71 1.75501 51.2
12* -62.782 2.00
13 30.426 0.90 1.84666 23.9
14 8.356 0.26
15 10.969 2.32 1.49700 81.5
16 -17.200 (可変)
17 67.802 1.03 1.84666 23.9
18 -20.590 0.90 1.83441 37.3
19* 7.689 (可変)
20 38.797 2.69 1.76802 49.2
21* -16.181 3.34
22 ∞ 1.10 1.51633 64.1
23 ∞ 1.00
像面 ∞

非球面データ
第11面
K =-9.13254e-001 A 4= 3.28751e-005 A 6= 3.81751e-007
A 8=-1.31646e-009

第12面
K =-3.69985e+001 A 4= 9.67476e-005 A 6=-3.13787e-007

第19面
K = 6.33550e-002 A 4= 1.16664e-004 A 6= 2.33683e-006
A 8=-5.91286e-007 A10= 5.92312e-008 A12=-2.08174e-009

第21面
K = 3.03390e+000 A 4= 1.30432e-004 A 6=-4.15618e-007
A 8= 3.10928e-008

各種データ
ズーム比 9.75
広角中間望遠
焦点距離 6.22 31.75 60.71
Fナンバー 2.47 4.26 4.64
半画角（度） 36.75 8.33 4.38
像高 4.65 4.65 4.65
レンズ全長 77.94 83.06 93.14
BF 5.07 5.07 5.07

d 3 0.33 23.65 36.77
d 9 28.09 5.98 1.72
d10 8.35 2.26 1.76
d16 2.97 6.95 7.95
d19 5.27 11.29 12.01

ズームレンズ群データ
群始面焦点距離
1 1 73.25
2 4 -11.49
3 10 ∞
4 11 12.37
5 17 -10.64
6 20 15.19
7 22 ∞
[Numerical Example 2]
Unit mm

Surface data surface number rd nd νd
1 40.066 1.20 1.90366 31.3
2 23.509 4.53 1.71300 53.9
3 744.323 (variable)
4 61.726 0.90 1.88300 40.8
5 9.649 5.31
6 -31.049 0.90 1.69680 55.5
7 32.766 0.09
8 19.600 2.13 1.92286 18.9
9 82.668 (variable)
10 (Aperture) ∞ (Variable)
11 * 10.517 2.71 1.75501 51.2
12 * -62.782 2.00
13 30.426 0.90 1.84666 23.9
14 8.356 0.26
15 10.969 2.32 1.49700 81.5
16 -17.200 (variable)
17 67.802 1.03 1.84666 23.9
18 -20.590 0.90 1.83441 37.3
19 * 7.689 (variable)
20 38.797 2.69 1.76802 49.2
21 * -16.181 3.34
22 ∞ 1.10 1.51633 64.1
23 ∞ 1.00
Image plane ∞

Aspheric data 11th surface
K = -9.13254e-001 A 4 = 3.28751e-005 A 6 = 3.81751e-007
A 8 = -1.31646e-009

12th page
K = -3.69985e + 001 A 4 = 9.67476e-005 A 6 = -3.13787e-007

19th page
K = 6.33550e-002 A 4 = 1.16664e-004 A 6 = 2.33683e-006
A 8 = -5.91286e-007 A10 = 5.92312e-008 A12 = -2.08174e-009

21st page
K = 3.03390e + 000 A 4 = 1.30432e-004 A 6 = -4.15618e-007
A 8 = 3.10928e-008

Various data Zoom ratio 9.75
Wide angle Medium Telephoto focal length 6.22 31.75 60.71
F number 2.47 4.26 4.64
Half angle of view (degrees) 36.75 8.33 4.38
Image height 4.65 4.65 4.65
Total lens length 77.94 83.06 93.14
BF 5.07 5.07 5.07

d 3 0.33 23.65 36.77
d 9 28.09 5.98 1.72
d10 8.35 2.26 1.76
d16 2.97 6.95 7.95
d19 5.27 11.29 12.01

Zoom lens group data group Start surface Focal length
1 1 73.25
2 4 -11.49
3 10 ∞
4 11 12.37
5 17 -10.64
6 20 15.19
7 22 ∞

［数値実施例３］

単位 mm

面データ
面番号 r d nd νd
1 36.806 1.20 2.00069 25.5
2 23.555 4.53 1.74400 44.8
3 265.388 (可変)
4 46.190 0.90 1.88300 40.8
5 8.663 5.15
6* -28.621 0.90 1.77377 47.2
7 18.367 0.70
8 18.108 2.18 1.92286 18.9
9 195.341 (可変)
10(絞り) ∞ (可変)
11* 10.337 2.45 1.72903 54.0
12* -46.630 2.25
13 30.255 0.90 1.84666 23.9
14 8.056 0.18
15 9.991 2.27 1.49700 81.5
16 -16.682 (可変)
17 37.143 1.09 1.84666 23.9
18 -21.209 0.90 1.83441 37.3
19* 7.667 (可変)
20 54.866 2.86 1.72903 54.0
21* -12.831 3.21
22 ∞ 1.10 1.51633 64.1
23 ∞ 1.00
像面 ∞

非球面データ
第6面
K =-3.57187e+000 A 4= 1.59999e-006 A 6= 8.04718e-008
A 8=-1.56727e-009

第11面
K =-1.03192e+000 A 4= 3.68039e-005 A 6= 6.21886e-007
A 8=-3.26861e-009

第12面
K =-4.53558e+000 A 4= 1.18443e-004 A 6=-2.66897e-007

第19面
K =-8.59779e-001 A 4= 4.34148e-004 A 6= 2.56536e-006
A 8= 5.65556e-008

第21面
K = 1.30898e+000 A 4= 1.80996e-004 A 6=-8.31667e-007
A 8= 3.05369e-008

各種データ
ズーム比 9.75
広角中間望遠
焦点距離 5.31 27.08 51.77
Fナンバー 2.47 4.35 4.94
半画角（度） 41.20 9.74 5.13
像高 4.65 4.65 4.65
レンズ全長 71.60 82.93 93.14
BF 4.94 4.94 4.94

d 3 0.33 23.82 35.39
d 9 21.80 5.27 1.65
d10 8.43 2.21 1.71
d16 2.39 7.00 9.12
d19 5.25 11.23 11.87

ズームレンズ群データ
群始面焦点距離
1 1 72.30
2 4 -9.20
3 10 ∞
4 11 11.90
5 17 -12.08
6 20 14.52
7 22 ∞
[Numerical Example 3]

Unit mm

Surface data surface number rd nd νd
1 36.806 1.20 2.00069 25.5
2 23.555 4.53 1.74400 44.8
3 265.388 (variable)
4 46.190 0.90 1.88300 40.8
5 8.663 5.15
6 * -28.621 0.90 1.77377 47.2
7 18.367 0.70
8 18.108 2.18 1.92286 18.9
9 195.341 (variable)
10 (Aperture) ∞ (Variable)
11 * 10.337 2.45 1.72903 54.0
12 * -46.630 2.25
13 30.255 0.90 1.84666 23.9
14 8.056 0.18
15 9.991 2.27 1.49700 81.5
16 -16.682 (variable)
17 37.143 1.09 1.84666 23.9
18 -21.209 0.90 1.83441 37.3
19 * 7.667 (variable)
20 54.866 2.86 1.72903 54.0
21 * -12.831 3.21
22 ∞ 1.10 1.51633 64.1
23 ∞ 1.00
Image plane ∞

Aspheric data 6th surface
K = -3.57187e + 000 A 4 = 1.59999e-006 A 6 = 8.04718e-008
A 8 = -1.56727e-009

11th page
K = -1.03192e + 000 A 4 = 3.68039e-005 A 6 = 6.21886e-007
A 8 = -3.26861e-009

12th page
K = -4.53558e + 000 A 4 = 1.18443e-004 A 6 = -2.66897e-007

19th page
K = -8.59779e-001 A 4 = 4.34148e-004 A 6 = 2.56536e-006
A 8 = 5.65556e-008

21st page
K = 1.30898e + 000 A 4 = 1.80996e-004 A 6 = -8.31667e-007
A 8 = 3.05369e-008

Various data Zoom ratio 9.75
Wide angle Medium Telephoto focal length 5.31 27.08 51.77
F number 2.47 4.35 4.94
Half angle of view (degrees) 41.20 9.74 5.13
Image height 4.65 4.65 4.65
Total lens length 71.60 82.93 93.14
BF 4.94 4.94 4.94

d 3 0.33 23.82 35.39
d 9 21.80 5.27 1.65
d10 8.43 2.21 1.71
d16 2.39 7.00 9.12
d19 5.25 11.23 11.87

Zoom lens group data group Start surface Focal length
1 1 72.30
2 4 -9.20
3 10 ∞
4 11 11.90
5 17 -12.08
6 20 14.52
7 22 ∞

［数値実施例４］
単位 mm

面データ
面番号 r d nd νd
1 41.272 1.20 1.90366 31.3
2 25.799 4.73 1.60311 60.6
3 -465.856 (可変)
4* -47.397 1.00 1.72903 54.0
5* 8.516 3.31
6 13.283 1.86 1.94595 18.0
7 18.476 (可変)
8(絞り) ∞ 1.57
9* 7.376 2.51 1.76802 49.2
10 39.959 0.98 1.69895 30.1
11 6.313 0.64
12* 9.801 2.42 1.55332 71.7
13 -24.227 (可変)
14 38.297 0.90 1.85135 40.1
15* 10.235 (可変)
16 30.604 2.57 1.60311 60.6
17 -15.830 (可変)
18 ∞ 1.10 1.51633 64.1
19 ∞ 1.00
像面 ∞

非球面データ
第4面
K = 1.00148e+001 A 4= 7.06614e-005 A 6=-2.59450e-007
A 8= 9.07909e-010

第5面
K =-8.10262e-001 A 4= 8.53208e-005 A 6= 7.20510e-007
A 8=-1.98421e-009

第9面
K =-2.40813e-001 A 4= 1.18874e-005

第12面
K =-1.00748e+000 A 4=-9.28947e-005

第15面
K =-4.74090e-001 A 4= 2.32792e-004 A 6= 6.71061e-007
A 8=-4.45210e-008

各種データ
ズーム比 9.45
広角中間望遠
焦点距離 6.27 31.96 59.23
Fナンバー 2.88 4.54 5.23
半画角（度） 36.57 8.27 4.49
像高 4.65 4.65 4.65
レンズ全長 72.20 84.05 97.40
BF 6.42 6.62 3.34

d 3 1.31 29.17 44.67
d 7 32.96 5.63 3.42
d13 4.75 9.65 10.10
d15 3.07 9.28 12.19
d17 4.69 4.90 1.61

ズームレンズ群データ
群始面焦点距離
1 1 85.89
2 4 -13.31
3 8 13.35
4 14 -16.65
5 16 17.67
6 18 ∞ [Numerical Example 4]
Unit mm

Surface data surface number rd nd νd
1 41.272 1.20 1.90366 31.3
2 25.799 4.73 1.60311 60.6
3 -465.856 (variable)
4 * -47.397 1.00 1.72903 54.0
5 * 8.516 3.31
6 13.283 1.86 1.94595 18.0
7 18.476 (variable)
8 (Aperture) ∞ 1.57
9 * 7.376 2.51 1.76802 49.2
10 39.959 0.98 1.69895 30.1
11 6.313 0.64
12 * 9.801 2.42 1.55332 71.7
13 -24.227 (variable)
14 38.297 0.90 1.85 135 40.1
15 * 10.235 (variable)
16 30.604 2.57 1.60311 60.6
17 -15.830 (variable)
18 ∞ 1.10 1.51633 64.1
19 ∞ 1.00
Image plane ∞

Aspheric data 4th surface
K = 1.00148e + 001 A 4 = 7.06614e-005 A 6 = -2.59450e-007
A 8 = 9.07909e-010

5th page
K = -8.10262e-001 A 4 = 8.53208e-005 A 6 = 7.20510e-007
A 8 = -1.98421e-009

9th page
K = -2.40813e-001 A 4 = 1.18874e-005

12th page
K = -1.00748e + 000 A 4 = -9.28947e-005

15th page
K = -4.74090e-001 A 4 = 2.32792e-004 A 6 = 6.71061e-007
A 8 = -4.45210e-008

Various data Zoom ratio 9.45
Wide angle Medium telephoto focal length 6.27 31.96 59.23
F number 2.88 4.54 5.23
Half angle of view (degrees) 36.57 8.27 4.49
Image height 4.65 4.65 4.65
Total lens length 72.20 84.05 97.40
BF 6.42 6.62 3.34

d 3 1.31 29.17 44.67
d 7 32.96 5.63 3.42
d13 4.75 9.65 10.10
d15 3.07 9.28 12.19
d17 4.69 4.90 1.61

Zoom lens group data group Start surface Focal length
1 1 85.89
2 4 -13.31
3 8 13.35
4 14 -16.65
5 16 17.67
6 18 ∞

Claims

In order from the object side to the image side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, and a positive lens and a fifth lens group having a refractive power, a zoom lens distance of the lens units vary adjacent zooming,
The first lens group is composed of one negative lens and one positive lens, the optical total length at the wide angle end is LDw, the optical total length at the telephoto end is LDt, the focal length of the first lens group is f1, the second When the focal length of the lens group is f2, and the focal length of the fourth lens group is f4,
0.10 <(LDt−LDw) / f1 <0.31
0.70 <f2 / f4 <1.20
A zoom lens satisfying the following conditional expression:

The fourth lens group has a negative lens including a lens surface of aspherical shape, the radius of curvature of the lens surface on the object side of the negative lens R4o, when the R4i the radius of curvature of the lens surface on the image side,
−2.0 <(R4i + R4o) / (R4i−R4o) <− 0.3
The zoom lens according to claim 1, wherein the following conditional expression is satisfied.

When the focal length of the entire system at the wide angle end is fw
10.5 <f1 / fw <15.0
The zoom lens according to claim 1, wherein the following conditional expression is satisfied.

When the focal length of the positive lens included in the first lens group is f1p,
0.35 <f1p / f1 <0.60
The zoom lens according to claim 1, wherein the following conditional expression is satisfied.

During zooming from the wide-angle end to the telephoto end, the first lens group moves along a convex locus toward the image side, the second lens group moves toward the image side, and the third lens group and the fourth lens group The zoom lens according to claim 1, wherein the zoom lens moves toward the object side.

During zooming from the wide-angle end to the telephoto end, the fifth lens group zoom lens according to any one of claims 1 to 5, characterized in that moves along a locus convex to the object side.

A zoom lens according to any one of claims 1 to 6, the imaging apparatus characterized by having an imaging element for receiving an image formed by the zoom lens.