| A | B |
| reflected light meter | meters the scene in middle gray |
| graycard | average reading |
| incident light | light falling on the subject |
| spot | exposure metering system |
| centre weighted | favours light at centre of an image |
| iso | film speed |
| high key | very bright scene, eg, snow |
| exposure | comination of fstop/shutterspeed/ISO |
| silhoutte | dark/low key area in an image |
| ttl | through the lens |
| fstop | aperture |
| exposure lock | locks shutter/aperture combinations |
| automatic | measures average light/dark |
| shutter proirity | you select shutter/camera selects aperture |
| viewfinder | you see details of the scene |
| programmed | camera adjusts both shutter and aperture |
| nikon | f60 cameras |
| manual mode | photographer has all control |
| builtin | light meters |
| under exposure | subject to dark |