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Table 1
Characteristics of operational and planned/proposed multiobject optical spectrographs with FOVs larger than 100 arcmin2.
| Telescope | Instrument | o/p a | Aperture | s/f b | FOV | Nmax |
| [m] | [deg2] | |||||
|
|
||||||
| SDSS | SDSS | o | 2.5 | f | 7.07 | 1000 |
| WIYN | HydraW | o | 3.5 | f | 0.78 | 100 |
| Blanco | HydraB | o | 3.9 | f | 0.35 | 138 |
| AAT | 2dF | o | 3.9 | f | 3.14 | 392 |
| LAMOST | LAMOST | o | 4.0 | f | 19.6 | 4000 |
| WHT | WYFFOS | o | 4.2 | f | 0.35 | 150 |
| Magellan | IMACS | o | 6.5 | s | 0.2 | 600 |
| MMT | Hectospec | o | 6.5 | f | 0.78 | 300 |
| VLT | VIMOS | o | 8.2 | s | 0.08 | 600 |
| VLT | FLAMES | o | 8.2 | f | 0.14 | 132 |
| Mayall | DESI | p | 3.9 | f | 7.07 | 5000 |
| VISTA | 4MOST | p | 4.1 | f | 7.07 | 3000 |
| WHT | WEAVE | p | 4.2 | f | 3.14 | 1000 |
| VLT | MOONS | p | 8.2 | f | 0.14 | 500 |
| Subaru | PFS | p | 8.3 | f | 1.33 | 2400 |
| ngCFHT | ngCFHT | p | 10.0 | f | 1.5 | 4000 |
| GMT | GMACS | p | 21.9 | s | 0.05 | 400 |
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