





- Brand: Celestron
- Model: HM02ULT1050
- UPC: C009
Ultima 20x50mm Porro Binocular
Item #: 72255
- Porro
prism binoculars
- Large
50mm objective lensesare ideal for viewing in low light conditions
- High
powered 20x magnification for up-close views of distant subjects
- BaK-4
prisms and fully multi-coated optics deliver maximum light
transmission through the optical path
- Ergonomic
body with synthetic rubber armor and a non-slip grip
- Tripod
adaptable for extended viewing sessions
- Eyeglass
friendly with generous eye relief and comfortable rubber eyecups
Enjoy up-close views wherever you are. The
Ultima 20x50 binocular gives you a major boost in magnification that will
make you feel like you’re a part of the action. It’s the perfect choice for
amazing views of faraway subjects when you need to keep your distance—as in
wildlife observation or surveillance.
These classically styled binoculars use their Porro
prism optical design to provide optimal image clarity and depth of field. Their
widely spaced objective lenses enable enhanced triangulation between binocular
and subject, presenting the observer with a rich, three-dimensional image that
only traditional Porro prism binoculars can offer.
Coatings and Prisms
Ultima binoculars feature fully multi-coated
optics. A binocular can be considered “fully multi-coated” when all glass
surfaces are coated with multiple layers of anti-reflectivity coatings so that
the maximum amount of light passes through the glass to the eye. The prisms
inside Ultima binoculars are made of high quality BaK-4 glass so that more
light is reflected off their internal faces and passes through to the eye.
Taken together, the fully multi-coated lenses and BaK-4 prisms maximize light
transmission for the remarkably bright, highly detailed images.
The Body
A durable, synthetic rubber-armored, aluminum
housing protects your Ultima binoculars from damage without weighing you
down. Viewing through Ultima binoculars is comfortable for both eyeglass
wearers and non-eyeglass wearers, thanks to the synthetic fold-down rubber
eyecups. What’s more, the binocular is fully waterproof and filled with dry
nitrogen gas to prevent internal fogging of lenses. Ultima binoculars can
stand up to even the toughest outdoor conditions.
Powerful Magnification
The Ultima 20x50 binoculars feature an
ultra-powerful 20x magnification with a sizable 50mm objective lens. It’s a
great choice for observing whale watching from the shore, searching for
wildlife in an open field, viewing distant objects on the horizon, and getting
close to the action at a sports game.
Ways to Observe
Keep your Ultima binocular at the ready with
the comfortable included neck strap. It’s also tripod-adaptable, so you can
mount it on any standard photographic tripod for extended viewing or
digiscoping (photography through the eyepiece). The tripod adapter is sold
separately. The binocular also includes a protective padded case for storage
and transport.
Accessories Included
Ultima includes an adjustable neck strap that
you can customize to be most comfortable for you. The binocular also includes a
protective soft case, and eyepiece and objective covers for storage and
transport, so you can take it anywhere with confidence.
General
Magnification: 20x
Objective Lens Diameter: 50mm
(1.97")
Angular Field of View: 3.1°
Linear Field of View (@1000 yds) / @1000 m): 162 ft (54 m)
Exit Pupil: 2.5mm
(0.1")
Eye Relief: 14.5mm
(0.57")
Close Focus: 22.9ft
(7m)
Interpupillary Distance (max): 74mm (2.91")
Interpupillary Distance (min): 50mm (1.97")
Diopter Adjustment Range: ±6
Twilight Factor: 31.62
Relative Brightness: 18
Lens Coatings: Fully
Multi-Coated
Prism Glass (Type): BaK-4
Prism Coatings: N/A
Weight: 26.8
oz (760 g)
Environmental Protection: Waterproof
Nitrogen Filled: Yes
Tripod Adaptable: Yes
Carrying Case: Black
woven fabric case with hook-and-loop closure flap
Dimensions: 170mm x
185mm x 60mm (6.7" x 7.3" x 2.4")
Included Items: Case
Neck strap
Eyepiece covers
Tethered objective covers
Solar Warning
Never look directly at the Sun with the naked eye or with
this optic. Permanent and irreversible eye damage may result.
Never use your optic to project an image of the Sun onto any
surface. Internal heat build-up can damage the optic and any accessories
attached to it.
Never leave your optic unsupervised. Make sure an adult who
is familiar with the correct operating procedures is with your optic at all
times, especially when children are present.