Quillon Pennant 10x50 binoculars
10x magnification · 50 mm objectives · 6.0° field
$419
Catalog preview. Not available for purchase.
- Package
- Binoculars only
- Optics
- ED glass, fully multi-coated
- Armor
- Black rubber armor
- Edition
- 2025 edition
Specifications
| Magnification | 10x |
|---|---|
| Objective diameter | 50 mm |
| True field of view | 6.0° |
| Exit pupil | 5.0 mm |
| Dawes limit | 2.32 arcsec |
| Limiting magnitude | 10.5 |
| Eye relief | 15 mm |
| Close focus | 3.5 m |
| Prisms | BaK-4 roof |
| Weather sealing | Water resistant, nitrogen-purged |
| Weight | 880 g |
| Package | Binoculars only |
| Optics | ED glass, fully multi-coated |
| Armor | Black rubber armor |
| Edition | 2025 edition |
Description
The Pennant 10x50 is a roof-prism binocular with 50 mm objectives and 10x magnification. The 5 mm exit pupil matches the dark-adapted pupil of many adult observers, so the view stays bright while the magnification separates close pairs and shows the larger star clusters clearly. The 6.0-degree true field gives an apparent field of 60 degrees, which keeps a wide sweep of the Milky Way in view. Exit pupil and field size together set the balance between brightness and sweep speed.
The 10x50 suits targets that reward steady magnification, including the Double Cluster in Perseus, the Beehive in Cancer, the Pleiades, and the globular cluster M13 in Hercules. At 880 g the binoculars show small hand movements at this power, so brace your elbows against your chest or rest them on a wall or car roof. Sweep slowly along the Milky Way from Cygnus toward Cassiopeia, and note which clusters resolve into individual stars.
The BaK-4 roof prisms are phase-corrected and fully multi-coated, which keeps star images sharp toward the edge of the field. The 15 mm eye relief lets you keep eyeglasses on, though observers with deep eye sockets may need to fold the eyecups down to see the full field. The central focus wheel moves smoothly, and the right-eye diopter compensates for differences between your two eyes.
The body is nitrogen-purged and sealed against moisture, so you can use it on damp nights and in cold air without internal fogging. The 3.5 m close focus lets you view nearby terrestrial subjects as well as the Moon, which shows crater detail along the terminator at 10x. Store the binoculars in the soft case with the caps fitted to keep the lenses free of dust.
About this configuration
The Quillon Pennant 10x50 binoculars comes in several configurations, and the notes below explain what this particular combination includes. This package contains the binoculars with their strap, lens caps, and case, without any mounting hardware. Binoculars alone suit hand-held scanning of the Milky Way, bright star clusters, and the phases of the Moon. The ED version adds low-dispersion glass and full multi-coating for sharper star images toward the edge of the field.
The black armor is the standard finish of the Pennant line and matches its black lens caps. This is the 2025 edition, which added a firmer diopter lock so the setting holds when you pass the binoculars around. The magnification, field, and exit pupil figures in the specifications table apply to every configuration of the Pennant line.
What's in the box
- Binoculars with neck strap
- Objective and eyepiece caps
- Soft carrying case
- Lens cleaning cloth
Compatibility notes
- The central tripod socket accepts an L-shaped binocular adapter with a 1/4-20 thread.
- Fits binocular harnesses and parallelogram mounts rated for 1 kg binoculars.