Pentax - Pentax 645 Lenses - Comparison
Model
Optical construction (Elements - Groups)
No. of Diaphragm Blades
Minimum Aperture
Closest Focusing Distance
Maximum Magnification
Filter Diameter
Maximum Diameter x Length
Weight
Pentax-D FA 645 25mm f/4 AL [IF] SDM AW
12 - 8
9
32
0.4 m
0.11 x
40.5 mm
-- x 140 mm
1.070 g
Pentax-A 645 35mm f/3.5
9 - 8
N/A
22
0.3 m
0.25 x
77 mm
80 x 67 mm
470 g
Pentax-FA 645 35mm f/3.5 AL [IF]
10 - 7
N/A
32
0.3 m
0.25 x
82 mm
88 x 90 mm
560 g
Pentax-A 645 45mm f/2.8
9 - 8
N/A
22
0.45 m
0.15 x
67 mm
74 x 66.5 mm
400 g
Pentax-FA 645 45mm f/2.8
9 - 8
N/A
22
0.45 m
0.15 x
67 mm
76.5 x 66.5 mm
475 g
Pentax-A 645 55mm f/2.8
8 - 7
N/A
22
0.45 m
N/A x
58 mm
74 x 60.5 mm
410 g
Pentax-D FA 645 55mm f/2.8 AL [IF] SDM AW
9 - 7
9
22
0.17 m
0.17 x
67 mm
81.3 x 68.2 mm
416 g
Pentax 645 LS 75mm f/2.8
6 - 5
N/A
22
0.75 m
0.13 x
58 mm
76 x 49.5 mm
365 g
Pentax-A 645 75mm f/2.8
6 - 5
N/A
22
0.6 m
0.18 x
58 mm
74 x 37.5 mm
240 g
Pentax-FA 645 75mm f/2.8
6 - 5
N/A
22
0.6 m
0.18 x
58 mm
74.5 x 37.5 mm
215 g
Pentax-A 645 120mm f/4 Macro
9 - 7
N/A
32
0.39 m
1 x
67 mm
78.5 x 110 mm
695 g
Pentax-FA 645 120mm f/4 Macro
9 - 7
N/A
32
0.39 m
1 x
67 mm
82.5 x 110 mm
735 g
Pentax 645 LS 135mm f/4
5 - 5
N/A
32
1.25 m
0.14 x
58 mm
76 x 69 mm
470 g
Pentax-A 645 150mm f/3.5
4 - 4
N/A
32
1.4 m
N/A x
58 mm
74 x 71.5 mm
435 g
Pentax-FA 645 150mm f/2.8 [IF]
7 - 7
N/A
22
1.2 m
0.15 x
67 mm
74.5 x 96 mm
500 g
Pentax-A 645 200mm f/4
4 - 4
N/A
32
2 m
0.13 x
58 mm
74 x 116 mm
570 g
Pentax-FA 645 200mm f/4
6 - 5
N/A
32
1.5 m
0.16 x
58 mm
74.5 x 119 mm
670 g
Pentax-A 645 300mm f/4 ED [IF]
8 - 8
N/A
32
3 m
0.11 x
77 mm
93 x 208 mm
1.360 g
Pentax-FA 645 300mm f/4 ED [IF]
8 - 8
N/A
32
3 m
0.11 x
77 mm
83 x 207.5 mm
1.480 g
Pentax-FA 645 300mm f/5.6 ED [IF]
7 - 7
N/A
N/A
2.2 m
0.16 x
67 mm
75 x 183.5 mm
775 g
Pentax-FA 645 400mm f/5.6 ED [IF]
7 - 6
N/A
45
3 m
0.14 x
77 mm
83 x 252 mm
1.260 g
Pentax-A 645 600mm f/5.6 ED [IF]
12 - 11
N/A
45
5 m
0.16 x
49 mm
156 x 353 mm
4.800 g
Pentax-FA 645 33-55mm f/4.5 AL
11 - 8
N/A
32
0.4 m
0.21 x
82 mm
89 x 105 mm
585 g
Pentax-A 645 45-85mm f/4.5
11 - 9
N/A
32
0.5 m
0.22 x
77 mm
79 x 99 mm
805 g
Pentax-FA 645 45-85mm f/4.5
11 - 9
N/A
32
0.5 m
0.22 x
77 mm
85 x 99.5 mm
870 g
Pentax-FA 645 55-110mm f/5.6
9 - 9
N/A
45
0.8 m
0.16 x
82 mm
88 x 104 mm
500 g
Pentax-A 645 80-160mm f/4.5
11 - 11
N/A
32
1 m
0.17 x
77 mm
82.5 x 131 mm
1.010 g
Pentax-FA 645 80-160mm f/4.5
11 - 11
N/A
32
1 m
0.17 x
77 mm
85 x 131 mm
1.010 g
Pentax-FA 645 150-300mm f/5.6 ED [IF]
15 - 13
N/A
N/A
2 m
0.18 x
67 mm
132 x 198 mm
920 g
