Steiner M1580rc specs and field of view
Sharing the 216 ft field of view of the M1580, the M1580rc prints no weight figure in the makers' documents.
- Field of view
- 216 ftat 1,000 yd
- Eye relief
- 13 mm
- Close focus
- 197 ft
- Exit pupil
- 5.3 mmcalculated
Why pick it
- Waterproof
Who the M1580rc suits
A calculated exit pupil of 5.3 mm and a twilight factor of 34.6 suit distant targets at dusk, and it is waterproof to 16 ft. It lists at over $2,000.
Eye relief is 13 mm, close focus is 197 ft, and the missing weight figure means you cannot judge its carry load from the figures.
M1580rc is one choice among many, and the top binoculars compared covers the most popular ones. Steiner lists it in the over $2,000 price band, alongside the models in best binoculars over $1,000.
M1580rc specifications
M1580rc figures as Steiner prints them; rows marked * are calculated from the 15x80 size.
| Magnification | 15x |
|---|---|
| Objective lens | 80 mm |
| Field of view | 216 ft at 1,000 yd (72 m at 1,000 m) |
| Angular field of view | 4.1° |
| Apparent field of view | 62° * |
| Eye relief | 13 mm |
| Close focus | 197 ft (60 m) |
| Eye spacing range | 56 to 74 mm |
| Waterproofing | Submersion to 16ft. |
| Fog-proofing gas | Nitrogen |
| Maker list price | over $2,000 |
| Exit pupil | 5.3 mm * |
| Twilight factor | 34.6 * |
| Relative brightness | 28.4 * |
* Calculated from the size, not printed by the maker.
Other sizes of the M-Series
Steiner makes the M-Series in 7 sizes; a larger front lens adds brightness and weight, and more magnification narrows the view.
| Model | Size | Field of view | Eye relief | Close focus | Weight | Exit pupil |
|---|---|---|---|---|---|---|
| Steiner M1580rc | 15x80 | 216 ft | 13 mm | 197 ft | 5.3 mm | |
| Steiner M830r | 8x30 | 390 ft | 20 mm | 66 ft | 18.7 oz | 3.8 mm |
| Steiner M750r | 7x50 | 390 ft | 22 mm | 66 ft | 36.9 oz | 7.1 mm |
| Steiner M750rc | 7x50 | 392 ft | 22 mm | 66 ft | 39.7 oz | 7.1 mm |
| Steiner M1050r | 10x50 | 300 ft | 15.8 mm | 66 ft | 35.3 oz | 5 mm |
| Steiner M1580 | 15x80 | 216 ft | 13 mm | 197 ft | 68.1 oz | 5.3 mm |
| Steiner M2080 | 20x80 | 160 ft | 197 ft | 68.1 oz | 4 mm |
Steiner binoculars
M1580rc questions
M1580rc: does it work with glasses?
M1580rc has 13 mm of eye relief, well short of the 16 mm the RSPB advises for people who wear glasses.
M1580rc: what does 15x80 mean?
M1580rc magnifies 15 times through 80 mm front lenses, which works out to an exit pupil of 5.3 mm, the width of the beam of light that reaches each eye.