Binoculars with 30 mm Objective
Compact Classic with All-Round Character

A 30 mm binocular marks the entry to the real compact class: lighter than a 32 mm, noticeably more light gathering than 25-28 mm. Classic as 8x30 with a long tradition.

What does 30 mm objective mean?

Entry to the compact class: typically 450-550 g
Exit pupil at 8x30 = 3.75 mm
At 10x30 still 3.0 mm
Typical configurations: 8x30, 10x30
Classic with decades of tradition

What does 30 mm mean for light gathering?

The objective diameter determines light gathering. With an 8x30 binocular, the exit pupil is 3.75 mm; with 10x30 still 3.0 mm. Daytime-suitable and usable in early dusk. For even more light gathering at the same format, the 32 mm binocular is the close alternative.

8x30 or 10x30 – which configuration?

On a 30 mm binocular, two magnifications are classically common:

8x30 – classic all-rounder with 3.75 mm exit pupil. More on 8x magnification.
10x30 – more reach with 3.0 mm exit pupil. More on 10x magnification.

30 mm binocular: What to look for when buying?

On a 30 mm binocular, phase coating, BAK-4 prisms and full multi-coating (FMC) pay off. Waterproof (IPX7) and nitrogen-filled should be standard today. General buying criteria on the main category Binoculars & Field Glasses.