Explore Scientific BT Series SF Giant Binoculars
Unmatched 3D Views
Are you on the hunt for something that can match your enthusiasm for exploring the Earth and Heavens? But your telescope's chromatic aberrations and lens distortions always leave you with less-than-satisfying unnatural views?
Experience that famous "3D Feeling" only binoculars offer when you propel your nature observations and stargazing to new heights with the Explore Scientific BT Series Giant Binoculars.
Key Features
- View Moon Details, Airplanes, Planets, and Deep Sky Objects
- Comfortable 45 Degree Viewing Angle
- Interchangeable 1.25" Eyepieces
- Advanced Lens Coatings for Bright, Vivid Images Even in Low-Light Conditions
- Nitrogen-sealed for durability and reliability
- Built-in carrying handle for easy transportation
- Comes with two high-quality Explore Scientific 62-degree 20mm LER eyepieces
- Extendable dew caps to prevent condensation on the lenses
Versatile Day & Night Observations
See the wonders of the stars at night and distant natural marvels by day with Explore Scientific's BT Series Giant Binoculars. Reveal star clusters, nebulae, moons, and planets in stunning detail even at twilight.
These binoculars have big light-gathering lenses and professional coatings to bring you brilliant views at night and during the day.
Durable, Easy Maintenance
The Double Refractor Telescope Design means each eye has the power of a light-gathering telescope right in its lens. The BT Giant Binocular series is made with magnesium housing and nitrogen-filled seals for optimal performance in challenging outdoor conditions. Plus the waterproof design and argon filling make them long-lasting and easy to take care of.
33x Magnification
The BT-120 SF includes two Explore Scientific 20mm eyepieces that give you a wide 62-degree field of view and 33x magnification that feels like you're just inches away from observational wonders.
Interchangeable Eyepieces
Easily adjust magnification and field of view with interchangeable eyepieces thanks to the 1.25-inch plug-in diameter.
Compatible with All Explore Scientific Eyepieces
It's also compatible with Explore Scientific eyepieces of different series, allowing magnification variations from 25x to 75x. Pair them with color and nebula filters for even better contrast and clarity during your night sky astronomical observations.
Relaxed 45-Degree Viewing Angle
Enjoy a relaxed 45-degree viewing angle, adaptable interpupillary distance, and helical single focus for easy and precise viewings. The extendable dew caps and carrying handle makes these easy to take and use anywhere.
Vibration-Free Mount
The tripod connection via 1/4 or 3/8 inch threaded holes allows for sturdy mounting and vibration-free observations. For an ideal setup, add the optional Explore Scientific U-Mount with field tripod. It's designed specifically for the BT series binoculars. To give them secure support and smooth maneuverability even at high magnifications.
You Won't Believe Your Eyes
When stunning planets "POP OUT" at you through this rare Explore Scientific BT Series. Don't miss out on a viewing experience only available through Giant Binoculars.
Still have questions? Want to add the right mount and tripod?
Call to speak with an expert. We're here and happy to help.
854-777-0909 (M-F 9a-5p CST) or
email us at sales@lakehouseandcottage.com
Product Specifications
|
Specs
|
120mm |
100mm |
82mm |
70mm |
| Optical design |
Achromatic refractor Porro |
Achromatic refractor Porro |
Achromatic refractor Porro |
Achromatic refractor Porro |
Mirror /
lens diameter |
120 mm |
100 mm |
82 mm |
70 mm |
| Focal length |
660 mm |
550 mm |
470 mm |
400 mm |
| Focal ratio |
5.5 |
5.5 |
5.7 |
5.7 |
Apparent
Facial field |
62 degrees |
62 degrees |
62 degrees |
62 degrees |
Type of
remuneration |
Enhanced Multilayer Desposition (EMD) |
Enhanced Multilayer Desposition (EMD) |
Enhanced Multilayer Desposition (EMD) |
Enhanced Multilayer Desposition (EMD) |
| Exit pupil min. |
3.6 mm |
3.6 mm |
3.5 mm |
3.5 mm |
| Field of view |
1.8 degrees |
2.3 degrees |
2.6 degrees |
3.1 degrees |
| Waterproof |
Yes |
Yes |
Yes |
Yes |
Water resistance
protection level |
IPX6 |
IPX6 |
IPX6 |
IPX6 |
Exit pupil
distance |
15 mm |
15 mm |
15 mm |
15 mm |
| Total length |
654 mm |
520 mm |
445 mm |
370 mm |
| Total width |
290 mm |
270 mm |
226 mm |
213 mm |
| Total height |
156 mm |
155 mm |
122 mm |
122 mm |
Total net
weight |
8300 g |
6800 g |
4300 g |
3400 g |
Housing
material |
Magnesium |
Magnesium |
Magnesium |
Magnesium |
BT-120 SF Giant Binoculars with 62 Degree LER Eyepieces
- Large binoculars with a 120mm objective diameter and 660mm focal length
- Good for observing planets, the moon, deep sky celestial objects and terrestrial targets
- Nitrogen-sealed to last you a long time
- Features a convenient 45-degree view and individual focusing
- Equipped with a carrying handle for easy transport and secure tripod assembly
- Includes two premium waterproof Explore Scientific 62-degree 20mm LER eyepieces
- Interchangeable 1.25 inch / 31.7mm eyepiece holder
- Extendable dew caps to minimize lens condensation
- Tripod connection with 2 x 1/4 inch and 1 x 3/8 inch photo threads
BT-100 SF Giant Binoculars with 62 Degree LER Eyepieces
- Large binoculars with a 100mm objective diameter and 560mm focal length
- Good for observing the moon, planets, deep sky objects, and terrestrial targets
- Nitrogen-sealed to last you a long time
- Features a convenient 45-degree view and individual focusing
- Equipped with a carrying handle for easy transport and secure tripod assembly
- Includes two premium waterproof Explore Scientific 62-degree 20mm LER eyepieces
- Interchangeable 1.25 inch / 31.7mm eyepiece holder
- Extendable dew caps to minimize lens condensation
- Tripod connection with 2 x 1/4 inch and 1 x 3/8 inch photo threads
BT-82 SF Giant Binoculars with 62 Degree LER Eyepieces
- Large binoculars with an 82mm objective diameter and 480mm focal length
- Suitable for observing the moon, planets, bright deep sky objects, and terrestrial targets
- Nitrogen-filled for durability and robustness
- Offers a convenient 45-degree view and individual focusing
- Equipped with a carrying handle for easy transportation and secure tripod assembly
- Includes two premium waterproof Explore Scientific 62-degree 20mm LER eyepieces
- Interchangeable 1.25 inch / 31.7mm eyepiece holder
- Extendable dew caps to minimize lens condensation
- Tripod connection with 2 x 1/4 inch and 1 x 3/8 inch photo threads
BT-70 SF Giant Binoculars with 62 Degree LER Eyepieces
- Large binoculars with a 70mm objective diameter and 400mm focal length
- Suitable for observing the moon, planets, bright deep sky objects, and terrestrial targets
- Nitrogen-sealed for robustness and durability
- Offers a convenient 45-degree viewing angle and individual focusing
- Equipped with a carrying handle for easy transport and secure tripod assembly
- Includes two premium waterproof Explore Scientific 62-degree 20mm LER eyepieces
- Interchangeable 1.25 inch / 31.7mm eyepiece holder
- Extendable dew caps to minimize lens condensation
- Tripod connection featuring 2 x 1/4 inch and 1 x 3/8 inch photo threads
FAQ
What can I observe with the Explore Scientific BT Series Binoculars?
These binoculars allow you to explore a wide range of celestial wonders, including the moon, planets, star clusters, and distant nebulae. Additionally, they provide detailed views of terrestrial objects during daylight, such as ships, airplanes, and natural landscapes.
Are the Explore Scientific BT Series Binoculars durable for outdoor use?
Absolutely! Designed for rugged outdoor use, these binoculars boast a robust magnesium housing. Sealed and nitrogen-filled, they prevent fogging even under challenging weather conditions. Plus, the waterproof design ensures durability and easy cleaning.
What eyepieces are included with the Explore Scientific BT Series Binoculars?
Each pair of BT Series Giant Binoculars comes equipped with two premium waterproof Explore Scientific 62-degree 20mm LER eyepieces. These eyepieces offer a wide apparent field of view, enhancing the observing experience.
Can I interchange the eyepieces on the Explore Scientific BT Series Binoculars?
Yes, the binoculars feature an interchangeable eyepiece holder with a 1.25-inch / 31.7mm diameter, allowing users to adjust magnification and field of view according to their preferences.
Do the binoculars have protective features for lens condensation?
Indeed, the BT Series Binoculars are equipped with extendable dew caps that minimize condensation on the lenses, ensuring clear views even in varying atmospheric conditions.
Are these binoculars compatible with tripods?
Yes, the binoculars come with a carrying handle for convenient transportation and easy tripod assembly. They offer a tripod connection with two 1/4 inch and one 3/8 inch photo thread, allowing users to stabilize and enjoy steady observations.
Can I use filters with these binoculars for enhanced viewing?
Yes, the Explore Scientific BT Series Binoculars support the use of color and nebula filters with a 1.25-inch / 31.7mm diameter, enhancing contrast and visibility for specific celestial objects.
How can I minimize vibrations during binocular use?
For optimal stability and usage, we recommend using the EXPLORE SCIENTIFIC U-Mount with a field tripod specially designed for these giant binoculars, ensuring safe handling and minimized vibrations during observations. The advanced mechanism offers adjustable friction in both axes, ensuring smooth movements and accurate tracking. Depending on the friction settings, the binocular position remains stable, reducing vibrations to a minimum. The robust U-Mount construction and the large stainless steel tripod substantially minimize vibrations, enabling observation of even the finest details without disruption, even at high magnifications.
Warranty
Lakehouse & Cottage is on a mission to make outdoor exploration accessible and easy. A major part of that is ensuring our customers have the experiences they desire by providing unwavering support and product protection.
Upon receipt of your product, we encourage you to thoroughly inspect it and familiarize yourself with the applicable warranty coverage. If you have any questions or concerns about your product and its warranty or if you need advice on getting started, please contact us at 854-777-0909.
Registering Your Product:
To maximize the warranty coverage on your EXPLORE SCIENTIFIC product, it is important that you promptly register your product. Instructions for how to do so will be included in your confirmation email. If you do not see them or if you have any questions, please email us at sales@lakehouseandcottage.com and we can assist you.
If registered within 60 days of purchase, your product will have additional warranty protection against manufacturer defects.
Anytime Free Service
Anytime an EXPLORE SCIENTIFIC product needs adjustments, cleaning, or collimation, we will do this service for free, even beyond the warranty period. Just reach out for instructions and our team will provide professional service at no additional cost to you.
Warranty Coverage for Our Products:
Lakehouse & Cottage ensures that EXPLORE SCIENTIFIC products are free from material and workmanship defects for a specific duration based on the product type. Should any such product or component be found defective in materials or workmanship upon inspection by EXPLORE SCIENTIFIC, we will repair or replace it accordingly. To avail of this service, the product must be returned to Lakehouse & Cottage along with proof of purchase and satisfactory product registration.
Warranty Period
Limited USA One Year Warranty (once registered within 60 days of purchase)
Through Lakehouse & Cottage, EXPLORE SCIENTIFIC owns, manages and holds responsibility for all USA warranties. Within the applicable warranty duration, they will undertake the repair or replacement of any product or part found to be defective upon inspection, provided that the defective item is returned to us with verified product registration and prepaid freight charges.
If it has been more than 30 days since the item was purchased, customers are responsible for shipping costs related to returning the product to our facility.
Shipping
We are pleased to offer you free shipping on all orders through Lakehouseandcottage.com
All orders are shipped within 1-2 business days. Product ETA 5-7 business days.
Please note, we do not process shipments on weekends or public holidays. During high order volumes, there may be a slight delay; please allow extra transit time. If a significant shipping delay occurs, we'll notify you via email.
Shipping Carriers
Lakehouse & Cottage uses USPS, FedEx, and UPS delivery services.
Available Shipping Areas
Orders are shipped within the contiguous United States, excluding outlying islands and overseas territories.
Shipping Information Responsibility
Ensure accurate shipping details when placing an order. We're not liable for losses due to incorrect shipping information.
P.O. Box or APO/FPO/DPO addresses are not accepted.
Shipping Tracking Information
You will receive shipment confirmation and tracking information via email.
You will receive confirmation once your order has been received and is being prepared to ship.
After your order has been packaged, tracking will be added and sent to you. You will receive tracking information to the email address you provided.
Check the Status of Your Order
Your confirmation email will have a link to check the status of your order.
You will also receive notifications when your order ships with tracking information provided through the shipping carrier.
For additional help checking the status of your order or if you have not received your confirmation email within 48hrs, please contact us at
sales@lakehouseandcottage.com
Damaged or Missing Items
Report any damage or missing packages within 7 business days to sales@lakehouseandcottage.com. While we don't assume responsibility for shipping carrier errors, we'll assist in contacting them and making things right. Keep packaging and damaged items for potential claims.
Refunds and Returns
We know you'll love your order! But just in case you're not fully satisfied, we've streamlined an easy return process.
Our return policy covers a 30-day period. Unfortunately, if 30 days have passed since your purchase, we can't provide a refund or exchange.
For a return to be eligible, the item must be unused and in its original condition and packaging. Please note that a 20% restocking fee applies to all returned products.
To process your return, we require a receipt or proof of purchase.
There are instances where only partial refunds are granted:
- Items not in their original condition, damaged, or missing parts for reasons not due to our error.
- Items returned beyond the 30-day delivery period.
Refunds
Upon receiving and inspecting your return, we'll send an email confirming its arrival and notify you of the approval or rejection of your refund. If approved, a refund will be processed, excluding the 20% restocking fee, and credited to your original method of payment.
Exchanges
We only replace items if they are defective or damaged. If you need to exchange an item for the same product, please email us at sales@lakehouseandcottage.com.
Shipping
To initiate a return, please email us at sales@lakehouseandcottage.com for shipping instructions. You are responsible for paying the shipping costs for returning the item. Shipping fees are non-refundable, and any refund processed will deduct the return shipping cost.
The duration for the exchanged product to reach you may vary based on your location.
For items over $75, consider using a trackable shipping service or purchasing shipping insurance. We cannot guarantee receipt of your returned item without these measures.
