Explore Scientific BT-100 SF Large Binoculars with 62 Degree LER Eyepieces

FEATURES:

• Powerful large binoculars with a 100 mm objective diameter and 560 mm focal length
• Observe the moon, the planets and bright deep sky objects in the night sky as well as terrestrial targets
• Extremely robust binoculars, sealed and filled with nitrogen
• Convenient 45-degree view and individual focusing
• Carrying handle makes it easier to transport the binocular and ensures a secure hold during tripod assembly
• Includes two premium waterproof Explore Scientific 62 degree 20mm LER eyepieces
• Eyepiece holder 1.25 inch / 31.7mm, interchangeable eyepieces
• Extendable dew caps minimize condensation on the lenses
  
• Tripod connection: 2 x 1/4 inch and 1 x 3/8 inch photo thread
• Optional accessories: Item 01-14300 U-mount with field tripod

DESCRIPTION:

Giant binocular for observing the starry sky, nature and landscape. 
Through the use of EXPLORE SCIENTIFIC BT series binoculars, one can observe the stunning beauty of the night sky as well as distant objects in nature with a high level of detail and clarity. These binoculars feature large lenses and professional coatings, providing bright and brilliant images during both day and night. The 45 degree viewing angle ensures comfortable use, even when the binoculars are tilted at extreme angles. Additionally, objects such as globular star clusters, glowing gas nebulae, the moon, planets, ships, and airplanes can all be observed with great detail, making for a truly immersive viewing experience.

A large binocular can also be called a double refractor telescope 
One complete lens telescope with the full light gathering power is available per eye. Experience a whole new dimension of observing. Objects are reproduced almost vividly in these binoculars and observing with both eyes is basically very relaxed. Last but not least, this comfortable way of observation increases the recognition of the finest details and effectively prevents rapid eye fatigue. 

Extremely robust binoculars with magnesium housing, sealed and filled with nitrogen  
The BT series binoculars are designed for tough outdoor use. The IPX6 sealed and nitrogen-filled design effectively prevents fogging of the internal optics even under difficult weather conditions. The very light magnesium housing saves weight and makes it easy to handle. Two EXPLORE SCIENTIFIC 20mm eyepieces of the 62 degree LER series already included. EXPLORE SCIENTIFIC is an established manufacturer of extremely high-quality eyepieces in the astronomy scene. An optical system is only as good as its weakest component. Therefore we have decided to deliver these giant binoculars with a pair of quality eyepieces of the 62 degree LER series. With an apparent field of view of 62 degrees and a focal length of 20mm, the BT-100 binoculars produce a 28x magnification. Thus these wide angle eyepieces offer a very good overview (field of view 2.3 degree) at moderate magnification. The large interpupillary distance of these LER (long eye relief) eyepieces of 15mm and soft silicone eyecups, which can be turned inside out, also guarantee a comfortable and relaxed view. For astronomy, a flat and sharp image field is advantageous and offers a particularly impressive viewing experience even during the day. Due to the waterproof design and the argon filling, these eyepieces are absolutely durable and easy to clean.

Interchangeable eyepieces with 1.25 inch / 31.7mm plug-in diameter 
Adjust the magnification and field of view to your individual needs and choose from a wide range of available eyepieces. All eyepiece types with a plug-in diameter of 1.25 inch / 31.7mm can be used with the binoculars of the BT series. Especially recommended are EXPLORE SCIENTIFIC eyepieces of the 62 and 82 degree series with focal lengths from 8 to 26mm (see item No. 02188xx and 02196xx). The magnification can be varied from 21x to 70x (focal length binoculars : focal length eyepiece = magnification). The eyepieces are held in the binoculars by a precise brass compression ring clamp and guarantee a tilt free position.  

Use of color and nebula filters for astronomical observations 
Increase the contrast and visibility of objects and details by screwing the corresponding filters directly into the thread of the eyepiece sleeves. The use of color and nebula filters must of course always be done in pairs. Suitable are all EXPLORE SCIENTIFIC screw filters with 1.25inch / 31.7mm diameter (see item No. 03102xx)  

Comfortable 45 degree view and helical single focus 
The 45-degree viewing angle allows a relaxed observation position even when the binoculars are tilted strongly. Also the individual interpupillary distance can be adjusted in a range from 54 to 76mm. With the fine helical individual focusing, precise focusing is achieved effortlessly. Extendable dew caps The integrated dew caps can be removed in high humidity and cold conditions. This avoids fogging of the outer objective lenses and effectively shields additional control light coming in from the side. 

Integrated carrying handle 
A metal carrying handle located at the center of gravity facilitates transport and ensures a secure hold during tripod assembly. 

Suitable tripods and tripod connection
When using these large binoculars, a sturdy photo tripod with an appropriate load capacity is highly recommended. The connection is made via two 1/4 inch or one 3/8 inch threaded holes (standard photo tripod thread) in the tripod adapter of the binoculars. The ideal solution is to use the optional availlable EXPLORE SCIENTIFIC U-Mount with field tripod (item No. 01-14300). This is specially designed for the large binoculars of the BT series and carries these devices absolutely safely. The excellent mechanism with adjustable friction in both axes allows easy moving and tracking. The binocular position is kept stable depending on the adjusted friction intensity. Vibrations are reduced to a minimum by the massive construction of the U-Mount and the large stainless steel tripod. Even at high magnification there are no vibrations and the finest details can be observed.

CA Residents: Prop 65 WARNING(S)

SPECIFICATIONS:

WARRANTY:

Explore Scientific Giant Binoculars come with a 1-year warranty when registered within 60 days of purchase.

The Explore Alliance membership program offers Extended Care for all Explore Scientific products with a paid membership. For more information on the Explore Alliance Click Here