Approximate equivalents of lens focal lengths
Common large format lens sizes compared to 35mm equivalents
| 35mm | 4x5 | 8x10 |
| 20mm | 65mm | 120mm |
| 24mm | 75mm | 155mm |
| 28mm | 90mm | 200mm |
| 35mm | 115mm | 240mm |
| 45mm | 150mm | 300mm |
| 52mm | 180mm | 360mm |
| 63mm | 210mm | 420mm |
| 90mm | 300mm | 600mm |
| 105mm | 360mm | 720mm |
| 135mm | 480mm | 900mm |