Corvane Lark 15x50 binoculars, with tripod adapter
15x magnification · 50 mm objectives · 3.0° field
$179
Catalog preview. Not available for purchase.
- Package
- With tripod adapter
- Optics
- Fully multi-coated optics
- Armor
- Olive rubber armor
- Edition
- 2026 edition
Specifications
| Magnification | 15x |
|---|---|
| Objective diameter | 50 mm |
| True field of view | 3.0° |
| Exit pupil | 3.3 mm |
| Dawes limit | 2.32 arcsec |
| Limiting magnitude | 10.5 |
| Eye relief | 15 mm |
| Close focus | 8.5 m |
| Prisms | BaK-4 Porro |
| Weather sealing | Not sealed |
| Weight | 1,100 g |
| Package | With tripod adapter |
| Optics | Fully multi-coated optics |
| Armor | Olive rubber armor |
| Edition | 2026 edition |
Description
The Lark 15x50 is a Porro-prism binocular with 50 mm objectives and 15x magnification. The pairing gives an exit pupil of about 3.3 mm and a true field of 3.0 degrees, which is an apparent field of about 45 degrees. At this power the view is closer to a small telescope than to a wide-field hand-held glass, and the 50 mm objectives collect enough light to show double stars and open clusters under a dark sky.
The higher magnification shows hand tremor more clearly than the lower-power models in this line. Rest the binoculars on a tripod through the central socket, or brace your elbows on a wall or a car roof. With steady support, the Double Cluster in Perseus, the Beehive Cluster in Cancer, and the star fields of Sagittarius along the Milky Way fill the narrow view. On the Moon, the crater rims and the shadow line along the terminator show clearly when the air is still.
The BaK-4 Porro prisms and the multi-coated lenses reduce light loss inside the barrels, but the bodies are not sealed. Keep the instrument dry and out of direct sun between sessions, and wipe the objectives after dew forms. The 15 mm eye relief is shorter than the 22 mm of the Lark 7x50, so observers who wear glasses may find that part of the field is blocked; fold the rubber eyecups down to hold the eye at the correct distance. The 1,100 g weight is manageable for short sessions, and the focus wheel and right-eye diopter adjust smoothly.
Begin with the Moon a few days after new, then move to the Double Cluster and the Beehive Cluster on a dark night. Note how many stars you can count in each cluster, and return on a later night to compare the results.
About this configuration
This listing covers one configuration of the Corvane Lark 15x50 binoculars, defined by its package, optical coatings, armor color, and edition year. The included tripod adapter lets you fix the binoculars to a photo tripod for steadier, more relaxed views. With the adapter on a tripod, hand shake disappears, which makes faint stars and close double stars easier to see. Fully multi-coated optics treat every air-to-glass surface, which raises light transmission and image contrast.
The olive armor has the same grip pattern and thickness as the other colors in the Lark line. The 2026 edition carries the optics over unchanged and updates small parts such as the caps and the case. Before you add a mount or adapter later, check the compatibility notes for the thread and fitting that this binocular uses.
What's in the box
- Binoculars with neck strap
- Objective and rain guard caps
- Soft carrying case
- Lens cleaning cloth
- L-shaped tripod adapter
Compatibility notes
- The central tripod socket takes a standard L-shaped binocular adapter with a 1/4-20 thread.
- Fits binocular tripod adapters rated for 1.2 kg.