Introduction
The table below lists the focal length equivalents between formats, keeping track of aspect ratios, such that every format can fit into any target format. In other words the equivalent format is strictly wider.
Focal lens equivalents
APS-C
APS-C
| 10mm
|
102.9
|
79.7
|
10
|
14
|
17
|
48
|
36
|
101
|
| 14mm
|
83.7
|
61.6
|
14
|
20
|
24
|
67
|
50
|
142
|
| 16mm
|
76.2
|
55.1
|
16
|
23
|
28
|
77
|
57
|
162
|
| 18mm
|
69.8
|
49.8
|
18
|
26
|
31
|
87
|
65
|
182
|
| 35mm
|
39.5
|
26.8
|
35
|
50
|
61
|
169
|
126
|
354
|
| 50mm
|
28.2
|
19.0
|
50
|
72
|
87
|
241
|
180
|
506
|
| 55mm
|
25.7
|
17.3
|
55
|
79
|
96
|
265
|
198
|
557
|
| 56mm
|
25.3
|
17.0
|
56
|
80
|
98
|
270
|
201
|
567
|
| 60mm
|
23.6
|
15.8
|
60
|
86
|
105
|
289
|
216
|
607
|
| 80mm
|
17.8
|
11.9
|
80
|
115
|
140
|
386
|
287
|
810
|
| 90mm
|
15.9
|
10.6
|
90
|
129
|
157
|
434
|
323
|
911
|
| 200mm
|
7.2
|
4.8
|
200
|
287
|
349
|
964
|
719
|
2024
|
35mm full frame
35mm full frame
| 14mm
|
104.3
|
81.2
|
10
|
14
|
17
|
47
|
35
|
99
|
| 16mm
|
96.7
|
73.7
|
11
|
16
|
19
|
54
|
40
|
113
|
| 17mm
|
93.3
|
70.4
|
12
|
17
|
21
|
57
|
42
|
120
|
| 19mm
|
86.9
|
64.6
|
13
|
19
|
23
|
64
|
48
|
134
|
| 20mm
|
84.0
|
61.9
|
14
|
20
|
24
|
67
|
50
|
141
|
| 24mm
|
73.7
|
53.1
|
17
|
24
|
29
|
81
|
60
|
169
|
| 28mm
|
65.5
|
46.4
|
19
|
28
|
34
|
94
|
70
|
198
|
| 35mm
|
54.4
|
37.8
|
24
|
35
|
43
|
118
|
88
|
247
|
| 45mm
|
43.6
|
29.9
|
31
|
45
|
55
|
151
|
112
|
318
|
| 50mm
|
39.6
|
27.0
|
35
|
50
|
61
|
168
|
125
|
353
|
| 85mm
|
23.9
|
16.1
|
59
|
85
|
103
|
286
|
212
|
600
|
| 105mm
|
19.5
|
13.0
|
73
|
105
|
128
|
353
|
262
|
741
|
| 120mm
|
17.1
|
11.4
|
84
|
120
|
146
|
403
|
300
|
847
|
| 200mm
|
10.3
|
6.9
|
139
|
200
|
243
|
672
|
500
|
1411
|
Fuji GFX
Fuji GFX
| 23mm
|
87.2
|
71.0
|
12
|
17
|
23
|
64
|
42
|
133
|
| 32mm
|
68.8
|
54.3
|
16
|
23
|
32
|
88
|
59
|
186
|
| 45mm
|
51.9
|
40.0
|
23
|
33
|
45
|
124
|
82
|
261
|
| 50mm
|
47.3
|
36.3
|
25
|
37
|
50
|
138
|
91
|
290
|
| 63mm
|
38.3
|
29.2
|
32
|
46
|
63
|
174
|
115
|
365
|
| 100mm
|
24.7
|
18.6
|
51
|
73
|
100
|
276
|
183
|
580
|
| 110mm
|
22.5
|
17.0
|
56
|
80
|
110
|
304
|
201
|
638
|
| 200mm
|
12.5
|
9.4
|
102
|
146
|
200
|
553
|
366
|
1160
|
| 250mm
|
10.0
|
7.5
|
127
|
183
|
250
|
691
|
457
|
1450
|
| Hasselblad 24mm
|
84.8
|
68.7
|
12
|
18
|
24
|
66
|
44
|
139
|
| Hasselblad 28mm
|
76.1
|
60.7
|
14
|
20
|
28
|
77
|
51
|
162
|
| Hasselblad 35mm
|
64.1
|
50.2
|
18
|
26
|
35
|
97
|
64
|
203
|
| Hasselblad 50mm
|
47.3
|
36.3
|
25
|
37
|
50
|
138
|
91
|
290
|
| Hasselblad 80mm
|
30.6
|
23.2
|
41
|
59
|
80
|
221
|
146
|
464
|
| Hasselblad 90mm
|
27.4
|
20.7
|
46
|
66
|
90
|
249
|
165
|
522
|
| Hasselblad 110mm
|
22.5
|
17.0
|
56
|
80
|
110
|
304
|
201
|
638
|
| Hasselblad 150mm
|
16.6
|
12.5
|
76
|
110
|
150
|
414
|
274
|
870
|
| Hasselblad 210mm
|
11.9
|
8.9
|
107
|
154
|
210
|
580
|
384
|
1218
|
| Hasselblad 300mm
|
8.4
|
6.3
|
153
|
220
|
300
|
829
|
549
|
1740
|
| Hasselblad 24mm (1.5)
|
62.6
|
49.0
|
18
|
26
|
36
|
99
|
66
|
209
|
| Hasselblad 28mm (1.5)
|
55.1
|
42.7
|
21
|
31
|
42
|
116
|
77
|
244
|
| Hasselblad 35mm (1.5)
|
45.3
|
34.7
|
27
|
38
|
52
|
145
|
96
|
304
|
| Hasselblad 50mm (1.5)
|
32.6
|
24.7
|
38
|
55
|
75
|
207
|
137
|
435
|
| Hasselblad 80mm (1.5)
|
20.7
|
15.6
|
61
|
88
|
120
|
332
|
220
|
696
|
| Hasselblad 90mm (1.5)
|
18.4
|
13.9
|
69
|
99
|
135
|
373
|
247
|
783
|
| Hasselblad 110mm (1.5)
|
15.1
|
11.4
|
84
|
121
|
165
|
456
|
302
|
957
|
| Hasselblad 150mm (1.5)
|
11.1
|
8.3
|
115
|
165
|
225
|
622
|
412
|
1305
|
| Hasselblad 210mm (1.5)
|
8.0
|
6.0
|
160
|
230
|
315
|
870
|
576
|
1827
|
| Hasselblad 300mm (1.5)
|
5.6
|
4.2
|
229
|
329
|
450
|
1243
|
823
|
2610
|
Pentax 645
Pentax 645
| 25mm
|
82.4
|
66.5
|
13
|
18
|
25
|
69
|
46
|
145
|
| 28mm
|
76.1
|
60.7
|
14
|
20
|
28
|
77
|
51
|
162
|
| 33mm
|
67.1
|
52.9
|
17
|
24
|
33
|
91
|
60
|
191
|
| 45mm
|
51.9
|
40.0
|
23
|
33
|
45
|
124
|
82
|
261
|
| 55mm
|
43.4
|
33.2
|
28
|
40
|
55
|
152
|
101
|
319
|
| 80mm
|
30.6
|
23.2
|
41
|
59
|
80
|
221
|
146
|
464
|
| 85mm
|
28.9
|
21.8
|
43
|
62
|
85
|
235
|
155
|
493
|
| 110mm
|
22.5
|
17.0
|
56
|
80
|
110
|
304
|
201
|
638
|
| 150mm
|
16.6
|
12.5
|
76
|
110
|
150
|
414
|
274
|
870
|
| 160mm
|
15.6
|
11.7
|
81
|
117
|
160
|
442
|
293
|
928
|
| 300mm
|
8.4
|
6.3
|
153
|
220
|
300
|
829
|
549
|
1740
|
Hasselblad H5D-60
Hasselblad H5D-60
| 24mm
|
96.4
|
79.9
|
10
|
14
|
20
|
54
|
36
|
114
|
| 28mm
|
87.6
|
71.3
|
12
|
17
|
23
|
63
|
42
|
132
|
| 35mm
|
75.0
|
59.7
|
15
|
21
|
29
|
79
|
52
|
166
|
| 50mm
|
56.5
|
43.8
|
21
|
30
|
41
|
113
|
75
|
236
|
| 80mm
|
37.1
|
28.2
|
33
|
48
|
65
|
180
|
119
|
378
|
| 90mm
|
33.2
|
25.2
|
37
|
54
|
73
|
203
|
134
|
426
|
| 110mm
|
27.4
|
20.7
|
46
|
66
|
90
|
248
|
164
|
520
|
| 150mm
|
20.3
|
15.3
|
62
|
90
|
122
|
338
|
224
|
709
|
| 210mm
|
14.6
|
10.9
|
87
|
125
|
171
|
473
|
313
|
993
|
| 300mm
|
10.2
|
7.7
|
125
|
179
|
245
|
676
|
448
|
1419
|
| 24mm (1.5)
|
73.4
|
58.4
|
15
|
21
|
29
|
81
|
54
|
170
|
| 28mm (1.5)
|
65.2
|
51.1
|
17
|
25
|
34
|
95
|
63
|
199
|
| 35mm (1.5)
|
54.2
|
41.9
|
22
|
31
|
43
|
118
|
78
|
248
|
| 50mm (1.5)
|
39.4
|
30.0
|
31
|
45
|
61
|
169
|
112
|
355
|
| 80mm (1.5)
|
25.2
|
19.0
|
50
|
72
|
98
|
270
|
179
|
568
|
| 90mm (1.5)
|
22.5
|
16.9
|
56
|
81
|
110
|
304
|
201
|
639
|
| 110mm (1.5)
|
18.5
|
13.9
|
69
|
99
|
135
|
372
|
246
|
780
|
| 150mm (1.5)
|
13.6
|
10.2
|
93
|
134
|
184
|
507
|
336
|
1064
|
| 210mm (1.5)
|
9.7
|
7.3
|
131
|
188
|
257
|
710
|
470
|
1490
|
| 300mm (1.5)
|
6.8
|
5.1
|
187
|
269
|
367
|
1014
|
672
|
2128
|
LF (4x5)
LF (4x5)
| 72mm
|
80.1
|
67.9
|
12
|
18
|
24
|
72
|
45
|
151
|
| 90mm
|
67.8
|
56.6
|
15
|
22
|
30
|
90
|
56
|
188
|
| 150mm
|
43.9
|
35.8
|
26
|
37
|
51
|
150
|
93
|
314
|
| 240mm
|
28.3
|
22.8
|
41
|
59
|
81
|
240
|
148
|
502
|
| 300mm
|
22.8
|
18.4
|
52
|
74
|
101
|
300
|
186
|
628
|
LF (6x17)
LF (6x17)
| 72mm
|
99.5
|
45.2
|
11
|
15
|
19
|
51
|
72
|
108
|
| 90mm
|
86.7
|
36.9
|
13
|
19
|
23
|
64
|
90
|
134
|
| 150mm
|
59.1
|
22.6
|
22
|
32
|
39
|
107
|
150
|
224
|
| 240mm
|
39.0
|
14.3
|
35
|
51
|
62
|
171
|
240
|
359
|
| 300mm
|
31.6
|
11.4
|
44
|
64
|
77
|
214
|
300
|
448
|
LF (8x10)
LF (8x10)
| 150mm
|
80.5
|
68.2
|
12
|
18
|
24
|
71
|
44
|
150
|
| 240mm
|
55.8
|
45.8
|
20
|
28
|
39
|
114
|
71
|
240
|
| 300mm
|
45.9
|
37.4
|
25
|
35
|
48
|
143
|
89
|
300
|
| 450mm
|
31.5
|
25.4
|
37
|
53
|
73
|
214
|
133
|
450
|
| 600mm
|
23.9
|
19.2
|
49
|
71
|
97
|
286
|
177
|
600
|
Code
The table above was generated by the program below.
