Northmere Holm 8x42 ED binoculars, with parallelogram mount
8x magnification · 42 mm objectives · 7.4° field
$1,409
Catalog preview. Not available for purchase.
- Package
- With parallelogram mount
- Optics
- Fully multi-coated optics
- Armor
- Black rubber armor
- Edition
- 2026 edition
Specifications
| Magnification | 8x |
|---|---|
| Objective diameter | 42 mm |
| True field of view | 7.4° |
| Exit pupil | 5.3 mm |
| Dawes limit | 2.76 arcsec |
| Limiting magnitude | 10.1 |
| Eye relief | 17 mm |
| Close focus | 2.0 m |
| Prisms | Phase-corrected BaK-4 roof |
| Weather sealing | Fully sealed, nitrogen-purged |
| Weight | 880 g |
| Package | With parallelogram mount |
| Optics | Fully multi-coated optics |
| Armor | Black rubber armor |
| Edition | 2026 edition |
Description
The Holm 8x42 ED binoculars pair 42 mm objectives with extra-low-dispersion glass elements that reduce colour fringing around bright stars and the Moon. The 8x magnification gives an exit pupil of 5.3 mm, which suits most observers under moderately dark skies. The 7.4-degree true field produces an apparent field of about 59 degrees, enough to fit the Double Cluster in Perseus, the Pleiades, and a long stretch of the Milky Way in Cygnus into a single view.
Brace your elbows against your chest or rest the binoculars on a fence post or a car roof to hold the view steady. Use the central focus wheel to set sharpness on a distant star, then turn the right-eye diopter until that star is equally sharp with your right eye. The 17 mm eye relief lets you keep eyeglasses on and still see the full field, and the twist-up eyecups set the eye distance for both glasses and bare eyes. The phase-corrected roof prisms and multi-coated lenses keep star images round and contrast high across the field.
At 880 g, the Holm 8x42 is comfortable for hand-held sessions of an hour or more, and a parallelogram mount or tripod adapter reduces fatigue on longer sweeps. The fully sealed body is purged with nitrogen and resists fogging, so the binoculars can move from a warm room into cold night air without internal condensation. The 2.0 m close focus lets you view nearby foliage or a dew-covered garden, and the wide field helps when you follow a satellite pass or a comet across the sky. Observers whose maximum pupil is 5 mm or less may find that a higher-magnification binocular shows more detail under the same sky.
About this configuration
All configurations of the Northmere Holm 8x42 ED binoculars share the same magnification and objective size; the options below change the package and finish. The parallelogram mount keeps the binoculars at eye level while you move them across the sky in smooth arcs. A parallelogram mount lets observers of different heights share the same view without aiming the binoculars again. Fully multi-coated optics treat every air-to-glass surface, which raises light transmission and image contrast.
The black armor is the standard finish of the Holm line and matches its black lens caps. This is the 2026 edition, the most recent version of the Holm line in the catalog. The magnification, field, and exit pupil figures in the specifications table apply to every configuration of the Holm line.
What's in the box
- Binoculars with neck strap
- Objective and rain guard caps
- Padded carrying case
- Lens cleaning cloth
- Parallelogram mount with counterweight
- Tripod adapter
Compatibility notes
- The central tripod socket accepts a standard L-shaped binocular adapter with a 1/4-20 thread.
- Fits parallelogram mounts and harnesses rated for binoculars up to 1 kg.