Leica Trinovid 8x20 BCA specs and field of view
The Trinovid 8x20 BCA weighs 8.3 oz and has a 340 ft field, which is 6.4 degrees. The objective is 20 mm and the prism is roof.
- Field of view
- 340 ftat 1,000 yd
- Eye relief
- 14 mm
- Close focus
- 9.8 ft
- Weight
- 8.3 oz
- Exit pupil
- 2.5 mmcalculated
Why pick it
- Lightest of the 3: 8.3 oz
- Waterproof
Who the Trinovid 8x20 BCA suits
Pocket carrying suits the 8.3 oz weight, and eye spacing runs from 32 to 74 mm. Eye relief is 14 mm.
Close focus is 9.8 ft, the calculated exit pupil is 2.5 mm, and the housing is splash-proof.
Trinovid 8x20 BCA can be set against the most popular models of every size in the best binoculars list.
Trinovid 8x20 BCA specifications
Trinovid 8x20 BCA figures as Leica prints them; rows marked * are calculated from the 8x20 size.
| Magnification | 8x |
|---|---|
| Objective lens | 20 mm |
| Prism type | Roof |
| Field of view | 340 ft at 1,000 yd (113 m at 1,000 m) |
| Angular field of view | 6.4° |
| Apparent field of view | 52° * |
| Eye relief | 14 mm |
| Close focus | 9.8 ft (3 m) |
| Eye spacing range | 32 to 74 mm |
| Weight | 8.3 oz (235 g) |
| Length | 3.6 in (91 mm) |
| Width | 3.8 in (96 mm) |
| Waterproofing | Splash-proof |
| Focus system | Center focus |
| Exit pupil | 2.5 mm * |
| Twilight factor | 12.6 * |
| Relative brightness | 6.3 * |
* Calculated from the size, not printed by the maker.
Trinovid 8x20 BCA against other 8x20 binoculars
Trinovid 8x20 BCA shows 340 ft at 1,000 yd, below the 345 ft median of the 3 8x20 models in the chart. At 8.3 oz it is at or under the 9.5 oz median weight for the size.
Trinovid 8x20 BCA and its nearest rivals
Trinovid 8x20 BCA next to the 8x20 models closest to it in maker list price, with the best figure in each column in bold.
| Model | Field of view | Eye relief | Close focus | Weight | Exit pupil | Maker list price |
|---|---|---|---|---|---|---|
| Leica Trinovid 8x20 BCA | 340 ft | 14 mm | 9.8 ft | 8.3 oz | 2.5 mm | |
| Nikon 8x20HG L DCF | 357 ft | 15 mm | 7.9 ft | 9.5 oz | 2.5 mm | |
| Canon 8x20 IS | 345 ft | 13.5 mm | 6.6 ft | 14.8 oz | 2.5 mm |
Other sizes of the Trinovid BCA
Leica makes the Trinovid BCA in 2 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 |
|---|---|---|---|---|---|---|
| Leica Trinovid 8x20 BCA | 8x20 | 340 ft | 14 mm | 9.8 ft | 8.3 oz | 2.5 mm |
| Leica Trinovid 10x25 BCA | 10x25 | 273 ft | 14.6 mm | 16.5 ft | 9 oz | 2.5 mm |
Leica binoculars
Trinovid 8x20 BCA questions
Trinovid 8x20 BCA: does it work with glasses?
Trinovid 8x20 BCA has 14 mm of eye relief, under the 16 mm the RSPB advises for people who wear glasses, so the edge of the view may be cut off with glasses on.
Trinovid 8x20 BCA: what does 8x20 mean?
Trinovid 8x20 BCA magnifies 8 times through 20 mm front lenses, which works out to an exit pupil of 2.5 mm, the width of the beam of light that reaches each eye.