Sigma 135mm f/1.8 DG DN
| Example 1 | |
| Focal length | 82.96 |
| F value | 1.46 |
| Angle of view | 28.12 |
| Image height | 21.63 |
| full length | 109.35 |
| BF | 24.0375 |
| Example 8 | |
| Focal length | 131.00 |
| F value | 1.85 |
| Angle of view | 18.04 |
| Image height | 21.63 |
| full length | 129.50 |
| BF | 29.0000 |
Tamron 16-70mm f/4, 20-72mm f/4, 28-72mm f/4
Embodiment 1
Focal length (mm): 16.48 33.54 67.88
F number: 4.12 4.12 4.12
Half angle of viw (degree): 54.46 31.40 16.88
Image height (mm): 19.60 21.63 21.63
Lens length (mm): 147.00 136.83 170.00
Embodiment 2
Focal length (mm): 16.48 33.53 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 54.66 31.55 16.88
Image height (mm): 19.74 21.63 21.63
Lens length (mm): 140.00 125.98 145.07
Embodiment 3
Focal length (mm): 20.40 37.57 67.90
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.64 30.07 16.87
Image height (mm): 19.68 21.63 21.63
Lens length (mm): 147.00 133.51 147.05
Embodiment 4
Focal length (mm): 28.85 46.35 72.75
F number: 2.88 2.88 2.89
Half angle of view (degree): 38.09 25.02 15.79
Image height (mm): 19.89 21.61 21.63
Lens length (mm): 135.00 138.51 166.43
Embodiment 5
Focal length (mm): 28.86 46.17 72.73
F number: 2.88 2.88 2.88
Half angle of view (degree): 38.02 25.30 15.77
Image height (mm): 20.12 21.30 21.63
Lens length (mm): 140.00 133.82 144.20
Embodiment 6
Focal length (mm): 20.41 37.58 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.69 30.29 17.58
Image height (mm): 19.70 21.04 21.63
Lens length (mm): 147.00 140.98 152.83
via asobinet and hi-lows-note