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Many equivalency tables take into account the diagonal field of view, but I think that's a pointless comparison. You usually have some lens/camera combination and ask yourself ''"what lens do I need on this other format so that after cropping I get the same framing?"''. These tables answer this question.
The 6x10 format is actually 8x10, with lenses that don't quite have the coverage for 8x10 (ultra-ultrawides). It's widely used by Clyde Butcher, so it's included here. For 6x10, 11x14, and 12x20, only lenses known to be used by Clyde Butcher are included.
== Focal lens equivalents ==
|150
|163
|-
|Focal legth210mm|Horizontal FOV|Vertical FOV|APS-C|35mm|Fuji GFX/Pentax 645|HxD-39/50|HxD-60/100|Fuji GFX (HTS)|HxD-39/50(HTS)|HxD-60/100(HTS)|4x5|5x7|6x17|8x10|11x14|12x20|-|150mm|9980.6°4°|8567.8° |112° |1513|1918|2125|2328|1230|1416|1518|5420
|75
|7296|10745
|150
|215210|} {| class="wikitable"|+ Large format (11x14) (vertical)229
|-
|300mm|61.2°|49.9° |18|26|35|40|43|24|26|29|107|137|65|215|300|327|-|360mm|52.5°|42.4° |22|31|42|47|52|28|32|35|129|164|77|258|360|392|-|480mm|40.6°|32.4° |29|41|56|63|69|38|42|46|172|218|103|343|480|523|} {| class="wikitable"|+ Large format (11x14) (horizontal)|-|Focal legth|Horizontal FOV
|Vertical FOV
|APS-C
|99.6°
|85.8°
|911|1315|1819|2021|2223
|12
|14
|5515|6854|75|72|107|150|215|-|210mm|80.4°|67.2° |15|21|26|29
|32
|17|19|21|75|105|101|150|210|301|-|300mm|61.2°|49.9° |21|30|37|41|45|25|28|30|107|150|144|215|300|429|-|360mm|52.5°|42.4° |25|37|44|50|54|30|33|36|129|180|172|258|360|515|-|480mm|40.6°|32.4° |34|49|59|66|73|39|44|48|172|240|230|343|480|687|} {| class="wikitable"|+ Large format (11x14) (vertical)|-|Focal legth|Horizontal FOV|Vertical FOV|APS-C|35mm|Fuji GFX/Pentax 645|HxD-39/50|HxD-60/100|Fuji GFX (HTS)|HxD-39/50(HTS)|HxD-60/100(HTS)|4x5|5x7|6x17|8x10|11x14|12x20|-|150mm|99.6°|85.8° |9|13|18|20|22|12|13|14|55|68|32|109
|150
|163
|-
|210mm
|80.4°
|67.2°
|13
|18
|25
|28
|30
|16
|18
|20
|77
|96
|45
|153
|210
|229
|-
|300mm
|61.2°
|49.9°
|18
|26
|35
|40
|43
|24
|26
|29
|110
|137
|65
|218
|300
|327
|-
|360mm
|52.5°
|42.4°
|22
|31
|42
|47
|52
|28
|32
|35
|132
|164
|77
|262
|360
|392
|-
|480mm
|40.6°
|32.4°
|29
|41
|56
|63
|69
|38
|42
|46
|175
|218
|103
|349
|480
|523
|}
