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BT-82 SF Large Binoculars with 62 Degree LER Eyepieces

Explore Scientific BT-82 SF Large Binoculars with 62 Degree LER Eyepieces

by Explore Scientific
$1,799.99

Notify me when back in stock

Description

Features

  • Powerful large binoculars with a 82 mm objective diameter and 480 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. 
Observe the beauty of the starry sky at night and distant objects in nature during the day. Globular star clusters, glowing gas nebulae, the moon with its craters and even planets can be observed wonderfully on a clear night. But also all other distant things in nature and landscape, even ships and airplanes can be seen in detail. With the all-round binoculars of the EXPLORE SCIENTIFIC BT series, you can get up very close. Thanks to the large, light-gathering lenses and the professional coatings on all lens surfaces, these binoculars produce bright and brilliant images even at night and at twilight, providing a special viewing pleasure. The comfortable 45 degree viewing angle allows fatigue-free use even when the binoculars are tilted strongly.  

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-82 binoculars produce a 24x magnification. Thus these wide-angle eyepieces offer a very good overview (field of view 2.6 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 18x to 60x (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 available 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 axis 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.

Specs

Item Number 01-14210 Optical design Achromatic refractor Porro Mirror / lens diameter 82 mm Focal length 470 mm Focal ratio 5.7 Apparent Facial field 62 degrees Type of remuneration Enhanced Multilayer Desposition (EMD) Exit pupil min. 3.5 mm Field of view 2.6 degrees Waterproof Yes Water resistance protection level IPX6 Exit pupil distance 15 mm Total length 445 mm Total width 226 mm Total height 122 mm Total net weight 4300 g Housing material Magnesium

Warranty

Explore Scientific offers free collimation service for the Giant Binoculars for the lifetime of the product. The customer is responsible for shipping both ways. 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 

Manual

Download Manual Here

CA Residents: Prop 65 WARNING(S)

Free Shipping

Shipping is FREE on all orders to customers within the United States. We don't want to mess around with fine print and extra charges, we like things to be simple and easy. 

Want to know about our Returns Policy? Read more here.

Order Confirmation:
As soon as you place your order you will receive an order confirmation
e-mail.  This means that we have received your order in our system and
pre-authorized your credit card for the purchase.  

As soon as we receive your order we automatically check to confirm that
your order is in stock and available for immediate shipment.  If your item
is on back-order or unavailable we will void the pre-authorization and
reach out to you via e-mail to see if alternate arrangements can be
made.  

If your item(s) are available for immediate shipment (within 5 business
days) we will process the charges and get to work preparing your
order for shipment.

Order Shipment:
If your order is in stock and we process the charges to your credit card it
will ship within three business days from the date of your order.  
We will send you shipping confirmation within 24 hours of your order
leaving the warehouse to the e-mail address you provided when
checking out.  

If you do not receive shipping confirmation from us within four business
days of your order feel free to follow up with us at info@stargazeroptics.com.

International Orders:
Please be aware that our products are made specifically for the United States market. This means that they require a 110V
electrical system to function correctly. 

Our products have generally not been certified for use with other
countries electrical safety standards but all of our products are certified
to United States standards.

We will happily ship our fantastic products to international customers.
Due to the extremely wide variety of product dimensions we will provide
an up to date shipping price quote for you on request.

If you are happy with our shipping quote we will prepare an order and
payment though our ultra secure online payment gateway.

Damages:
Please inspect the packaging of your item(s) when they arrive, if you
notice any damage you should make note of it when signing for delivery
or do not agree to accept the delivery.

If you do accept delivery you are required to immediately take photos
using your smart phone or camera of the damaged packaging or
products inside the packaging. 

If your item(s) do arrived damaged please send photos to info@stargazeroptics.com, then visit our Returns page and lodge your return claim online.

Free Returns

While we fully stand by every product that we sell, we understand that
sometimes you might change your mind or realize the product you
ordered wasn't exactly what you were hoping for.

That's why we offer a 30 Day Return Policy.

If you decide you want to return an item for any reason within 30 days
after receipt of your order, please email us at info@stargazeroptics.com with your order number and we will provide detailed instructions on how to
process the return.

Return shipping costs will be covered by Stargazer Optics.

Once your return item(s) have been received and inspected at our
warehouse(s), we will send you an email notification that we have
processed your return payment.

*Please note: In order to receive a refund for the item(s) ordered, the
item(s) must arrive back to our distribution center in "Like New" condition
and must contain all original packaging and accessories.

"Like New" means that the items you ordered must not show any visual
signs of wear.  Opened products will be accepted, as long as the above criteria are met.

If items are returned with visual signs of wear, or have any issues due to
use will not be accepted and no refund will be given.

If you decide you want to return your order, please email us at info@stargazeroptics.com with your order number and we will assist you. We want to make this as simple of a process as possible for you.

Damages
If the product is damaged, you must make note of it immediately when
signing for delivery and send photos to info@stargazeroptics.com the day of delivery.

Stargazer Optics will pay for shipping defective, damaged, or
incorrect merchandise at our cost.

Remember to keep all the original packaging for any items that need to
be returned. All returns need to be authorized by our customer service
department prior to being processed. 

We will ensure you get the product you ordered, undamaged, as soon
as possible. Items that become damaged after use are non-refundable
unless specified under warranty.

Cancellations
If you would like to cancel an order, please email or call our customer
service team immediately.

Cancellations received before shipment will receive a full refund.

Orders canceled after items have shipped will follow our 30 Day Return
policy.

Other Return Policy Notes:
If a certain vendor or product does not support the return policy stated
above, this will be noted in the product descriptions or in the product-
specific return information.

Products that are specified as certified pre-owned or used are ineligible
for a return

Stargazer Optics only sells to purchasers who intend to use the
item(s) for the duration of its economic life. Orders purchased for the
specific purpose of a "one time use or temporary use" are not eligible for
return under any circumstances. This includes but is not limited to;
orders intended for use in a trade show or a conference venue, orders
that are purchased by promotional companies, and orders that are
purchased by trade show facilitators.

For more information on Shipping & Returns see our FAQ page.

Description

Features

  • Powerful large binoculars with a 82 mm objective diameter and 480 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. 
Observe the beauty of the starry sky at night and distant objects in nature during the day. Globular star clusters, glowing gas nebulae, the moon with its craters and even planets can be observed wonderfully on a clear night. But also all other distant things in nature and landscape, even ships and airplanes can be seen in detail. With the all-round binoculars of the EXPLORE SCIENTIFIC BT series, you can get up very close. Thanks to the large, light-gathering lenses and the professional coatings on all lens surfaces, these binoculars produce bright and brilliant images even at night and at twilight, providing a special viewing pleasure. The comfortable 45 degree viewing angle allows fatigue-free use even when the binoculars are tilted strongly.  

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-82 binoculars produce a 24x magnification. Thus these wide-angle eyepieces offer a very good overview (field of view 2.6 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 18x to 60x (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 available 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 axis 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.

Specs

Item Number 01-14210 Optical design Achromatic refractor Porro Mirror / lens diameter 82 mm Focal length 470 mm Focal ratio 5.7 Apparent Facial field 62 degrees Type of remuneration Enhanced Multilayer Desposition (EMD) Exit pupil min. 3.5 mm Field of view 2.6 degrees Waterproof Yes Water resistance protection level IPX6 Exit pupil distance 15 mm Total length 445 mm Total width 226 mm Total height 122 mm Total net weight 4300 g Housing material Magnesium

Warranty

Explore Scientific offers free collimation service for the Giant Binoculars for the lifetime of the product. The customer is responsible for shipping both ways. 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 

Manual

Download Manual Here

CA Residents: Prop 65 WARNING(S)

Free Shipping

Shipping is FREE on all orders to customers within the United States. We don't want to mess around with fine print and extra charges, we like things to be simple and easy. 

Want to know about our Returns Policy? Read more here.

Order Confirmation:
As soon as you place your order you will receive an order confirmation
e-mail.  This means that we have received your order in our system and
pre-authorized your credit card for the purchase.  

As soon as we receive your order we automatically check to confirm that
your order is in stock and available for immediate shipment.  If your item
is on back-order or unavailable we will void the pre-authorization and
reach out to you via e-mail to see if alternate arrangements can be
made.  

If your item(s) are available for immediate shipment (within 5 business
days) we will process the charges and get to work preparing your
order for shipment.

Order Shipment:
If your order is in stock and we process the charges to your credit card it
will ship within three business days from the date of your order.  
We will send you shipping confirmation within 24 hours of your order
leaving the warehouse to the e-mail address you provided when
checking out.  

If you do not receive shipping confirmation from us within four business
days of your order feel free to follow up with us at info@stargazeroptics.com.

International Orders:
Please be aware that our products are made specifically for the United States market. This means that they require a 110V
electrical system to function correctly. 

Our products have generally not been certified for use with other
countries electrical safety standards but all of our products are certified
to United States standards.

We will happily ship our fantastic products to international customers.
Due to the extremely wide variety of product dimensions we will provide
an up to date shipping price quote for you on request.

If you are happy with our shipping quote we will prepare an order and
payment though our ultra secure online payment gateway.

Damages:
Please inspect the packaging of your item(s) when they arrive, if you
notice any damage you should make note of it when signing for delivery
or do not agree to accept the delivery.

If you do accept delivery you are required to immediately take photos
using your smart phone or camera of the damaged packaging or
products inside the packaging. 

If your item(s) do arrived damaged please send photos to info@stargazeroptics.com, then visit our Returns page and lodge your return claim online.

Free Returns

While we fully stand by every product that we sell, we understand that
sometimes you might change your mind or realize the product you
ordered wasn't exactly what you were hoping for.

That's why we offer a 30 Day Return Policy.

If you decide you want to return an item for any reason within 30 days
after receipt of your order, please email us at info@stargazeroptics.com with your order number and we will provide detailed instructions on how to
process the return.

Return shipping costs will be covered by Stargazer Optics.

Once your return item(s) have been received and inspected at our
warehouse(s), we will send you an email notification that we have
processed your return payment.

*Please note: In order to receive a refund for the item(s) ordered, the
item(s) must arrive back to our distribution center in "Like New" condition
and must contain all original packaging and accessories.

"Like New" means that the items you ordered must not show any visual
signs of wear.  Opened products will be accepted, as long as the above criteria are met.

If items are returned with visual signs of wear, or have any issues due to
use will not be accepted and no refund will be given.

If you decide you want to return your order, please email us at info@stargazeroptics.com with your order number and we will assist you. We want to make this as simple of a process as possible for you.

Damages
If the product is damaged, you must make note of it immediately when
signing for delivery and send photos to info@stargazeroptics.com the day of delivery.

Stargazer Optics will pay for shipping defective, damaged, or
incorrect merchandise at our cost.

Remember to keep all the original packaging for any items that need to
be returned. All returns need to be authorized by our customer service
department prior to being processed. 

We will ensure you get the product you ordered, undamaged, as soon
as possible. Items that become damaged after use are non-refundable
unless specified under warranty.

Cancellations
If you would like to cancel an order, please email or call our customer
service team immediately.

Cancellations received before shipment will receive a full refund.

Orders canceled after items have shipped will follow our 30 Day Return
policy.

Other Return Policy Notes:
If a certain vendor or product does not support the return policy stated
above, this will be noted in the product descriptions or in the product-
specific return information.

Products that are specified as certified pre-owned or used are ineligible
for a return

Stargazer Optics only sells to purchasers who intend to use the
item(s) for the duration of its economic life. Orders purchased for the
specific purpose of a "one time use or temporary use" are not eligible for
return under any circumstances. This includes but is not limited to;
orders intended for use in a trade show or a conference venue, orders
that are purchased by promotional companies, and orders that are
purchased by trade show facilitators.

For more information on Shipping & Returns see our FAQ page.