Depth of field by subject distance#
600 mm at f/8 on full frame (36×24 mm), circle of confusion 30 µm. “Background blur” is the size of an out-of-focus light at infinity as a percentage of frame width.
| Focus distance | Near limit | Far limit | Total DoF | Front / behind | Background blur |
|---|---|---|---|---|---|
| 1.50 m (4.92 ft) | 1.50 m | 1.50 m | 0.2 cm | 50% / 50% | 138.89% |
| 2.00 m (6.56 ft) | 2.00 m | 2.00 m | 0.4 cm | 50% / 50% | 89.29% |
| 3.00 m (9.84 ft) | 3.00 m | 3.00 m | 1.0 cm | 50% / 50% | 52.08% |
| 4.00 m (13.1 ft) | 3.99 m | 4.01 m | 1.8 cm | 50% / 50% | 36.76% |
| 5.00 m (16.4 ft) | 4.99 m | 5.01 m | 2.9 cm | 50% / 50% | 28.41% |
| 7.00 m (23.0 ft) | 6.97 m | 7.03 m | 6.0 cm | 50% / 50% | 19.53% |
| 10.0 m (32.8 ft) | 9.94 m | 10.1 m | 12.5 cm | 50% / 50% | 13.30% |
| 15.0 m (49.2 ft) | 14.9 m | 15.1 m | 28.8 cm | 50% / 50% | 8.68% |
| 20.0 m (65.6 ft) | 19.7 m | 20.3 m | 51.7 cm | 49% / 51% | 6.44% |
| 30.0 m (98.4 ft) | 29.4 m | 30.6 m | 1.18 m | 49% / 51% | 4.25% |
| 50.0 m (164 ft) | 48.4 m | 51.7 m | 3.30 m | 48% / 52% | 2.53% |
| 100 m (328 ft) | 93.8 m | 107 m | 13.3 m | 47% / 53% | 1.26% |
Try other settings#
600 mm at other apertures (subject at 3 m)#
Other focal lengths at f/8#
Same lens settings on other formats#
When to use it#
At f/8, a 600 mm lens on full frame is a natural choice for landscapes and architecture where front-to-back sharpness matters. Focused at 3 m you get 1.0 cm of sharp zone; for maximum front-to-back sharpness focus at 1.5 km and everything from 750 m to infinity will be acceptably sharp.
See also the f/8 aperture guide.
Frequently asked questions#
What is the depth of field of a 600mm lens at f/8?
On full frame, focused at 3 m, it is 1.0 cm; at 1 m it is not applicable (inside minimum focus).
What is the hyperfocal distance for 600mm f/8?
1.5 km (4923 ft) on full frame. Everything from 750 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources