Omegon Zoomstar 15-45×80: a viewer, three magnifications
The Zoomstar 15-45×80 is the only zoom binoculars in our Omegon range. At 15x, you have a field of view of 2.6 degrees and a exit pupil of 5.3 mm for star fields; at 45x, the moon fills the field with crater detail. All with central focusing and no need to change eyepieces.
A zoom is a compromise: at 45x the exit pupil is 1.8 mm and the image is noticeably darker and narrower. For the moon, Jupiter and daytime objects this is fine; for faint nebulae, you stay with 15x. The tripod adapter is built in, and at 80 mm and 45x a tripod is required.
Zoom range
From 15x to 45x in one turn. The apparent field of view is 37 degrees: narrower than a fixed binoculars, and that feels like looking through a tube. On the other hand, you get clear overview without the hassle of zooming in. Eyepiece distance 14 mm; wearers look at the field with the ocular shells folded over, but not completely.
Optics and construction
BaK-4 prisms, full multi-coated, central focusing with dioptre correction on the right. Splashproof, not waterproof. The light transmission varies from 35 at 15x to 60 at 45x.
Tripod
The built-in 1/4-inch connection fits directly onto any tripod. At 45x you can see every vibration; a tripod with a sturdy tilt head is the minimum; the binoculars mount with counterweight is the more comfortable alternative.
Included
- Binoculars with built-in tripod adapter
- Eyepiece caps and lens caps
- Carrying Strap
- Cup
Featured accessories
Omegon Titania 600 tripod set, Omegon eyepiece mount with counterweight. Filters do not fit: the Zoomstar does not have a filter thread.
For whom yes and for whom no
- ✓ Who wants a viewer for lunar and day objects with high magnification
- ✓ Boat, coast and landscape on a tripod
- ✗ Deep-sky: a fixed 15×70 or 20×80 gives a wider and brighter image
- ✗ Glasses wearers who want to see the whole field
- ✗ Off-hand at high magnification
Specifications
| Optical design | Porro, BaK-4 |
| Enlargement | 15x to 45x |
| Objective diameter | 80 mm |
| Exit pupil | 5.3 mm at 15x, 1.8 mm at 45x |
| Eye distance | 14 mm |
| Real field of view | 2.6 degrees at 15x |
| Apparent field of view | 37 degrees |
| Twilight Number | 35 to 60 |
| Focus | Center, dioptre to the right |
| Waterproof | No, splash-proof |
| Tripod connector | 1/4 inch, built-in |
You can find all binoculars, mounts, and accessories for this brand on the Omegon brand page.
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