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avantiindietro Pentax 645N: lenses

For the 645N, PENTAX developed five SMC-PENTAX FA autofocus lenses to assure fast, stable autofocus operation. The 645N has perfected the renowned optical system - originally developed for and made famous by the PENTAX 645 - by adding a high-performance viewfinder lupe. As a result, the camera assures comfortable, fatigue-free eye-level shooting over long periods in the field.

SMC Pentax-FA 645 lenses (autofocus)

SMC Pentax-FA 645 lenses (autofocus)

All existing SMC PENTAX-A 645 lenses can be used with the new 645N without any modifications (except for autofocus operation). When using A 645 lenses, the 645N gives both audible and/or visual confirmation -- as you manually turn the focusing ring.

SMC Pentax-A 645 lenses (manual focus)

SMC Pentax-A 645 lenses (manual focus)

Lens chart

Lens AF
Angle of
View (°)
groups/
elements
Min.
Aperture (f)
Min. Focusing
Distance (m)
Filter
Size (mm)
Max. Diameter
& Length (mm)
Weight
(g)
FA 645 45mm~85mm f/4.5
  
76 ~ 44.5
9 . 11
32
0.5
77
85 x 99.5
870
A 645 45mm~85mm f/4.5
-
76 ~ 44.5
9 . 11
32
0.5
77
80 x 99.5
805
FA 645 Zoom 35mm~55mm f/4.5
  
93 ~ 65
11 . 8
32
0.5
82
88 x 104
585
FA 645 Zoom 55mm~110mm f/5.6
  
65 ~ 35
9 . 9
45
0.8
82
88 x 104
500
A 645 80mm~160mm f/4.5
-
47 ~ 24.5
11 . 11
32
1
77
82.5 x 131
1,0
FA 645 Zoom 80mm-160mm f/4.5
  
47 - 24.5
11 . 10
32
1.0
77
85 x 130.5
1,0
FA 645 35mm F3.5 AL [IF]
  
90
7 . 10
32
0.3
82
88 x 90
560
A 645 35mm f/3.5
-
90
8 . 9
22
0.3
77
80 x 67
470
FA 645 45mm f/2.8
  
76
8 . 9
22
0.45
67
76.5 x 66.5
475
A 645 45mm f/2.8
-
76
8 . 9
22
0.45
67
74 x 66.5
400
A 645 55mm f/2.8
-
65
7 . 8
22
0.45
58
74 x 60.5
410
FA 645 75mm f/2.8
  
50
5 . 6
22
0.6
58
74.5 x 37.5
215
A 645 75mm f/2.8
-
50
5 . 6
22
0.6
58
74 x 37.5
240
A 645 150mm f/32.8 [IF]
  
26
7 . 7
22
1.2
67
74.5 x 96
500
A 645 150mm f/3.5
-
26
4 . 4
32
1.4
58
74 x 71.5
435
A 645 200mm f/4
-
20
4 . 4
32
2
58
74 x 116
570
FA 645 200mm f/4 [IF]
  
20
6 . 5
32
1.5
58
74.5 x 119
670
FA* 645 300mm f/4 ED
  
13.5
8 . 8
32
3
77
83 x 207.5
1,5
A* 645 300mm f/4 ED [IF]
-
13.5
8 . 8
32
3
77
93 x 208
1,4
FA 645 300mm f/5.6 ED [IF]
  
13.5
7 . 7
45
2.2
67
75 x 183.5
775
FA 645 400mm f/5.6 ED [IF]
  
10
6 . 7
45
3
77
83 x 252
1,3
A* 645 600mm f/5.6 ED [IF]
-
6.6
11 . 12
45
5
49
155.5 x 352.5
4,8
A 645 Macro 120mm f/4
-
32.5
7 . 9
32
0.39
67
78.5 x 110
695
FA 645 Macro 120mm f/4
  
32.5
9 . 7
32
0.395
67
82.5 x 110
735
A 645 LS 75mm f/2.8 (leaf shutter)
-
50
5 . 6
32
0.75
58
76 x 49.5
365
A 645 LS 135mm f/4 (leaf shutter)
-
29
5 . 5
32
1.25
58
76 x 69
470
Rear Converter A 645 1.4X
-
-
4 . 5
-
-
-
77 x 31
265
Rear Converter A 645 1.4X
-
-
4 . 6
-
-
-
77 x 60
350

 

For citation purposes
Gian Luca Agnoli, Chrysis.net PHOTOGRAPHY, URL: http://www.chrysis.net/photo.