Binokulární dalekohled Bresser Spezial Astro SF 20x80 ED

Dalekohledy SPEZIAL ASTRO od společnosti BRESSER jsou ideální pro astronomické a krajinářské pozorování.

Jedná se o profesionální velký dalekohled s objektivy z ED skla, který splňuje nejvyšší nároky na věrnost barev a brilanci. Nabízí nejlepší pozorovací vlastnosti, robustní námořní verzi a pevný stativový adaptér.

Díky plně vícevrstvému povlaku ze skla Bak-4, extra velkému průměru objektivu a vysoce korigovaným okulárům s pěti čočkami ve třech skupinách poskytují tyto dalekohledy jasný a ostrý obraz od okraje k okraji. Vysoké 20x zvětšení je vhodné nejen pro pozorování astronomických objektů, ale také pro sledování vzdálených pozemských objektů. Díky velmi vysoké redukci parazitního světla poskytují dalekohledy nejlepší možný obraz a dokonalý výhled. Po individuálním zaostření okulárů můžete dosáhnout ostrého obrazu na všech astronomických vzdálenostech. Sklopné gumové očnice umožňují nositelům brýlí maximálně využít zorné pole těchto optik.

Dalekohledy jsou vodotěsné a naplněné ARGONEM, aby se zabránilo vnitřnímu zamlžování. Ergonomické pogumování zajišťuje dobrý úchop a chrání dalekohled před nárazy.

S přiloženým stativovým adaptérem pro těžká fotozařízení může být dalekohled SPEZIAL ASTRO ED namontován na jakýkoli fotostativ se standardním závitem 1/4 palce nebo 3/8 palce. Použití stativu je vysoce doporučeno při vysokém zvětšení 20x, aby byl obraz stabilní.

Vlastnosti:
- Dalekohled pro astronomická a krajinářská pozorování
- Extrémně vysoká světelná kapacita
- Vysoké zvětšení pro vzdálené objekty
- Plně vícevrstvá optika
- Vodotěsnost a naplnění ARGONEM proti zamlžování
- Zvětšení: 15x / průměr objektivu: 70 mm
- Individuální zaostření okulárů a sklopné gumové očnice
- Vysoce korigované okuláry pro ostrý obraz od okraje k okraji
- Ergonomické pogumování - ochrana proti nárazům
- Rozměry: 310x250x100 mm / hmotnost: 2700 g
- Součástí je stativový adaptér pro těžká fotozařízení

Obsah balení:
- Dalekohled
- Foto stativový adaptér
- Popruh na krk
- Krytky proti prachu
- Pouzdro 

Capacity Capacity X Performance data enables binoculars to be compared with one another. Click to read more...
Type of build  Type of build X Describes the internal structure of a pair of binoculars, thereby further subdividing the different types. Click to read more...	Porro prisms  Porro prisms X A classic binoculars design, in which the objective lenses are slightly further apart than the eyepieces. Click to read more...
Magnification  Magnification X The first number in the binoculars’ model number represents the magnification. It specifies how much larger an object appears compared to when viewed with the naked eye. Click to read more...	20
Front lens diameter (mm)  Front lens diameter X The second specification in the binoculars’ model number is the front lens diameter. The larger it is, the more light the binoculars collect. Click to read more...	80
Exit pupil (mm)  Exit pupil X Relates to the beam of light emitted by the eyepiece. The exit pupil is closely associated with the brightness of a pair of binoculars. Click to read more...	4
Glass material  Glass material X A distinction is made between different glass materials. Through the use of special types of glass, the optical image can be optimized. Click to read more...	BaK-4  BaK-4 X A binoculars prism made of Barium Crown glass that is commonly used in high-quality binoculars. It is a byword for bright neutral images and high resolution. Click to read more...
Lens coating  Lens coating X Coatings on optical surfaces have the job of minimising annoying reflections. In this way light transmission and contrast is increased. Click to read more...	fully, multiple
Focusing system  Focusing system X Binoculars are focused by focusing on the object, or rather the eyes of the observer. Click to read more...	Single focusing
Eye relief (mm)  Eye relief X The eye relief specifies the maximum distance from the eyepiece at which the entire field of view can still be seen. A suitable distance for spectacles wearers is >16mm. Click to read more...	16
Interpupillar distance (mm)  Interpupillary distance X The interpupillary distance indicates how far the eyepieces or tubes can be pushed together or pulled apart. This is an important indication, since each person has a different interpupillary distance. Click to read more...	56-74
Eyepiece cups  Eyepiece cups X The eyecups are located on the eyepieces and protect they eyes from stray light. Click to read more...	folding
Special features Special features X Binoculars can be equipped with additional functions such as an image stabilizer or a zoom. Click to read more...
Protection bag	yes
Threaded tripod connector  Threaded tripod connector X A 1/4" thread for connection to a photographic tripod. Most binoculars require an additional tripod adapter. Click to read more...	yes
Lens cover	yes
eyepiece cap	yes
Diopter compensation	yes
inert gas charge	yes
Carrying strap	yes
dust-proof	yes
Field of view Field of view X Information about the field of view enables binoculars to be more easily compared with one another. Click to read more...
True field of view (°)  True field of view X The angular field of view visible with the binoculars. Click to read more...	3,3
Field of view at 1,000 m (m)  Field of view at 1,000 m X The visible field in meters, that can be seen from a distance of 1,000 meters. This information is often more easily visualised as an angular measurement. Click to read more...	58
Close focus limit (m)  Close focus limit X The shortest distance which can still be seen sharply through binoculars. Click to read more...	20
Twilight factor  Twilight factor X Used to compare binoculars’ performance in low light conditions. The higher the number, the more suitable it is for twilight. However, the value should always be considered in connection with the exit pupil. Click to read more...	40
General
Length (mm)	310
Width (mm)	250
Height (mm)	100
Weight (g)	2700
Series	Spezial Astro  Spezial Astro X Binoculars for astronomy and landscape observation. Click to read more...
Outer material	Aluminium
Surface material  Surface material X Binoculars are usually equipped with a sleeve that protects the binoculars and makes them easier to grip. Click to read more...	Rubber armouring
Colour	black
Area of application Area of application X The areas of application help you to choose the right binoculars for your purpose. Click to read more...
Astronomy  Astronomy X You are fascinated by the stars, but don't want to set up telescope right now? You can immerse yourself in the world of astronomy using many binoculars. Click to read more...	very good
Hunting  Hunting X Do you want to stay in the hide until dusk, or do you prefer to stalk game? We have the right binoculars for you! Click to read more...	not recommended
Travel and sports	not recommended
Sailing  Sailing X Even the sailors of old used binoculars to orient themselves on the high seas. In some cases, modern binoculars even offer a built-in compass and a reticle for estimating distances. Click to read more...	not recommended
Theatre  Theatre X Whether it's serious opera, a romantic operetta, folk theatre or a musical; with opera glasses or small binoculars, you'll be part of the action. Click to read more...	not recommended
Bird watching  Bird watching X Blackbird, thrush, finch or starling? Binoculars helps to spot and identify the bird. Click to read more...	good