Binoculars with 56 mm Objective
Pro Class for Dusk & Long-Range

A 56 mm binocular is the pro class for maximum dusk performance and Long-Range observation. Classic as 8x56 (hunting standard), 10x56, 12x56 and 15x56 (match shooting).

What does 56 mm objective mean?

Pro and dusk class: typically 1.0-1.4 kg
Exit pupil at 8x56 = 7.0 mm (dusk maximum)
At 10x56 = 5.6 mm, at 12x56 = 4.67 mm, at 15x56 = 3.73 mm
Typical configurations: 8x56, 10x56, 12x56, 15x56, 16x56
Maximum light gathering in classic binocular format

What does 56 mm mean for light gathering?

The objective diameter determines light gathering. With an 8x56 binocular, the exit pupil is 7.0 mm – dusk maximum for hunters. With 10x56 still 5.6 mm, with 12x56 = 4.67 mm, with 15x56 = 3.73 mm. This means 56 mm delivers about 26 % more light area than a 50 mm binocular – the absolute maximum among classic binoculars.

8x56, 10x56, 12x56 or 15x56 – which configuration?

On a 56 mm binocular, several magnifications are classic:

8x56 – dusk and hunting classic with 7.0 mm exit pupil. More on 8x magnification.
10x56 – dusk all-rounder with 5.6 mm exit pupil – ideal for stalking in deep dusk. More on 10x magnification.
12x56 – Long-Range with 4.67 mm exit pupil – dusk with reach. More on 12x magnification.
15x56 – Long-Range maximum with mandatory tripod (e.g. Bushnell Match Pro 15x56 ED). More on 15x magnification.
16x56 – Long-Range tripod. More on 16x magnification.

56 mm binocular: What to look for when buying?

On a 56 mm binocular it is about pro optics. ED or HD glass is mandatory (any optical weakness becomes visible due to the large objective). Full multi-coating (FMC), BAK-4 prisms with phase coating and IPX7 waterproofness are standard. For 12x56 and larger, tripod adapter (1/4" thread) is mandatory. General buying criteria on the main category Binoculars & Field Glasses.

✓ Hunters stalking in deep dusk (8x56 classic)
✓ Long-Range observers (12x56, 15x56)
✓ Astronomy enthusiasts (15x56 with tripod)
✓ Match shooting marksmen (15x56 with mil reticle)
✓ Pro nature observers with maximum demands

Frequently asked questions – 56 mm binoculars

Why is 8x56 the hunting classic for dusk?

Because the exit pupil of 7.0 mm is the maximum for dusk observation – the human eye cannot utilise more light in this class. In deep dusk the absolute standard.

56 mm or 50 mm binocular – which is better?

56 mm delivers 26 % more light area but is about 200 g heavier. For pure dusk and astronomy clearly 56 mm; for more model selection and all-round the 50 mm.

How bright is a 56 mm binocular at dusk?

Maximum. At 8x56 with 7.0 mm exit pupil usable deep into the night – an 8x56 binocular is the professional standard for hunters.

Is a 56 mm binocular suitable for astronomy?

Very good. 15x56 and 16x56 with tripod deliver usable images of moon, star clusters and bright Deep-Sky objects.

Which magnification suits a 56 mm objective?

8x56 for dusk all-round and hunting, 10x56 for stalking, 12x56 for Long-Range, 15x56 for match shooting and astronomy.

Do I need a tripod with a 56 mm binocular?

At 8x56 and 10x56 freehand-suitable. From 12x56 recommended, from 15x56 mandatory.

Is ED glass worthwhile on a 56 mm binocular?

Mandatory. The large objective makes any optical weakness visible – ED or HD glass is essential in this class for good image quality.