Camera Exposure Helper
F-stop & Shutter Speed Exposure Calculator
Simply select the reference F-number and shutter speed to quickly check exposure combinations that maintain the same brightness.
Choose a reference exposure
Please select the F-number and shutter speed you want to use as the reference when shooting.
3 steps to get started
- Select the reference exposure from the two items above.
- Check the combinations with the same brightness on the result card on the right.
- Compare the entire exposure line using the correlation table below.
When you select an F-number and shutter speed, a list of settings that produce the same brightness will be displayed.
Reference exposure
Not selected/Not selected
The shutter speeds that produce the same brightness are listed for each different F-number.
F-stop & Shutter Speed Correlation Table
The selected exposure line is highlighted, so you can intuitively follow the relationships across the entire table. Horizontal scrolling is also supported.
Selected reference exposure
Exposure line with the same brightness
| F1.0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F1.1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 |
| F1.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 |
| F1.4 | - | - | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 |
| F1.6 | - | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 |
| F1.8 | - | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 |
| F2.0 | - | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 |
| F2.2 | - | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 |
| F2.5 | - | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 |
| F2.8 | - | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 |
| F3.2 | - | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 |
| F3.5 | - | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 |
| F4.0 | - | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 |
| F4.5 | - | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 |
| F5.0 | - | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 |
| F5.6 | 1/32000 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 |
| F6.3 | 1/16000 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - |
| F7.1 | 1/12000 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - |
| F8.0 | 1/10000 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - |
| F9.0 | 1/8000 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - |
| F10 | 1/6400 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - |
| F11 | 1/5000 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - |
| F13 | 1/4000 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - |
| F14 | 1/3200 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - | - |
| F16 | 1/2500 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - | - | - |
| F18 | 1/2000 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - | - | - | - |
| F20 | 1/1600 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - | - | - | - | - |
| F22 | 1/1250 | 1/1000 | 1/800 | 1/640 | 1/500 | 1/400 | 1/320 | 1/250 | 1/200 | 1/160 | 1/125 | 1/100 | 1/80 | 1/60 | 1/50 | 1/40 | 1/30 | 1/25 | 1/20 | 1/15 | 1/13 | 1/10 | 1/8 | 1/6 | 1/5 | 1/4 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.3 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6 | 8 | 10 | 13 | 15 | 20 | 25 | 30 | - | - | - | - | - | - | - | - | - | - | - | - |
Notes and supported range
- F-numbers and shutter speeds are both shown in 1/3-stop increments.
- The unit for shutter speed is seconds (s).
- The minimum F-number handled is 1.0 and the maximum is 22.
- The minimum shutter speed handled is 1/32000 (s) and the maximum is 30 (s).
F-stop & Shutter Speed Exposure Calculator
This is a simple exposure conversion tool that brings the result display and correlation table together on one screen for people who want to see a list of converted shutter speeds when changing the aperture.
This F-stop & Shutter Speed Exposure Calculator and correlation table is a camera tool that lets you quickly check the shutter speeds that keep the same brightness when you change the aperture from a reference exposure.
It is useful when you want to change only the look while maintaining exposure, such as portrait photography where you want to adjust background blur or scenes where you want to secure depth of field in landscapes.
- Supports 1/3-stop increments
- Check the correlation table below
- Also useful for learning exposure conversion
How to use
- Select the F-number and shutter speed you want to use as the reference in the select boxes at the top.
- Check the shutter speed for each F-number shown on the result card to confirm the combinations that keep the same brightness.
- Use the highlight in the correlation table to compare the entire exposure line across the table.
Why understanding exposure conversion makes shooting more consistent
When you understand the relationship between F-number and shutter speed, it becomes easier to control only the mood of a photo without changing its brightness. For example, when stopping down from F2.8 to F4, you need to make the shutter speed one stop slower to maintain the same exposure.
Even in situations where it is difficult to perform exposure conversion by feel alone, checking a table makes it easier to reduce setting mistakes. It is especially useful for photography where the balance between shutter speed and F-number is important, such as backlit portraits, night scenes, long exposures, and panning shots of sports or trains.
Useful for these kinds of shooting situations
- When you want to match exposure while adjusting background blur in portraits
- When you want to stop down the F-number in landscape photography while knowing the required shutter speed
- When you want to check how far you can stop down in situations where you want to avoid camera shake
- As practice for beginners who want to learn the concept of exposure