Váha těla digitální zrcadlovky Nikon D3100 včetně baterie je cca 500 g
| Sestava Nikon D3100 | hmotnost (gramy) | celkem (gramy) |
|---|---|---|
| Fotoaparát bez objektivu | 500 | 500 |
| 10-24mm F3.5-4.5G AF-S DX | 460 | 960 |
| 12-24mm F4 G IF-ED AF-S DX ZOOM | 485 | 985 |
| 14-24mm F2.8G ED AF-S | 970 | 1470 |
| 17-55mm F2.8 AF-S DX ZOOM IF-ED | 755 | 1255 |
| 16-35mm F4G AF-S VR ED | 685 | 1185 |
| 16-85mm F3.5-5.6G AF-S DX VR ED | 485 | 985 |
| 17-35mm F2.8 AF-S IF-ED | 745 | 1245 |
| 18-35mm F3.5-4.5D IF-ED AF ZOOM | 370 | 870 |
| 18-35mm F3.5-4.5 G AF-S | 385 | 885 |
| 18-105mm F3.5-5.6G AF-S DX VR ED | 420 | 920 |
| 18-200mm F3.5-5.6G AF-S DX VR II ED | 565 | 1065 |
| 18-300mm F3.5-5.6G AF-S DX VR ED | 830 | 1330 |
| 24-70mm F2.8G AF-S ED | 900 | 1400 |
| 24-85mm F3.5 - 4.5G ED VR AF-S | 465 | 965 |
| 24-85mm F2.8-4 AF ZOOM D | 545 | 1045 |
| 24-120mm F4G AF-S VR ED | 710 | 1210 |
| 28-300mm F3.5-5.6G AF-S VR ED | 800 | 1300 |
| 55-200mm F4-5.6G AF-S DX | 255 | 755 |
| 55-200mm F4.0 -5.6G AF-S DX VR ZOOM IF-ED | 335 | 835 |
| 55-300mm F4.5-5.6G AF-S DX VR ED | 530 | 1030 |
| 70-200mm F2.8G AF-S VR II ED | 1540 | 2040 |
| 70-300mm F4.5-5.6G AF-S VR ZOOM IF-ED | 745 | 1245 |
*váha je pouze orientační