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The optical tube is really the heart of your night time exploration. Sizes range from 50mm to 20" in diameter as well as f/ratios from f/2.2 to f/15. The optical designs range from simple doublet refractors to complex cassegrains with built-in field flatteners. There is literally something for everyone here, you just have to decide what path you want to walk down. We are always here to help with any questions you have.
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Original price $979.99 - Original price $979.99Original price$979.99$979.99 - $979.99Current price $979.99Explore Scientific AR152 6" f/6.5 Achromatic Doublet Refractor Optical Tube
Explore ScientificMore on the wayThis 6" Explore Scientific AR152 achromatic refractor optical tube is a sensational value - a big 6" (152mm) and fast f/6.5 refractor that's priced...
View full detailsOriginal price $979.99 - Original price $979.99Original price$979.99$979.99 - $979.99Current price $979.99 -
Original price $2,999.99 - Original price $2,999.99Original price$2,999.99$2,999.99 - $2,999.99Current price $2,999.99Explore Scientific 127mm f/7.5 Carbon Fiber FCD100 ED Triplet Refractor
Explore ScientificIn StockThis big 127mm (5") Explore Scientific Carbon Fiber air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at a su...
View full detailsOriginal price $2,999.99 - Original price $2,999.99Original price$2,999.99$2,999.99 - $2,999.99Current price $2,999.99 -
Original price $749.99 - Original price $749.99Original price$749.99$749.99 - $749.99Current price $749.99Explore Scientific AR127 5" f/6.5 Achromatic Doublet Refractor Optical Tube
Explore ScientificIn StockThis 5" Explore Scientific achromatic refractor optical tube is a big performer, both inside the solar system and out in the realm of the nebulas a...
View full detailsOriginal price $749.99 - Original price $749.99Original price$749.99$749.99 - $749.99Current price $749.99 -
Original price $599.99 - Original price $599.99Original price$599.99$599.99 - $599.99Current price $599.99Explore Scientific AR102 4" f/6.5 Achromatic Doublet Refractor Optical Tube
Explore ScientificIn StockThis Explore Scientific 4" refractor has: Big 4" aperture fully multicoated achromatic doublet refractor optics Collimatable objective lens cell ...
View full detailsOriginal price $599.99 - Original price $599.99Original price$599.99$599.99 - $599.99Current price $599.99 -
Original price $1,099.99 - Original price $1,099.99Original price$1,099.99$1,099.99 - $1,099.99Current price $1,099.99Explore Scientific 102mm f/7 "Essential Series" FCD-1 ED Triplet Refractor
Explore ScientificIn StockThis 102mm (4") Explore Scientific Essential Series air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at a su...
View full detailsOriginal price $1,099.99 - Original price $1,099.99Original price$1,099.99$1,099.99 - $1,099.99Current price $1,099.99 -
Original price $2,499.00 - Original price $2,499.00Original price$2,499.00$2,499.00 - $2,499.00Current price $2,499.00Explore Scientific 127mm f/7.5 Classic White FCD100 ED Triplet Refractor
Explore ScientificIn StockThis big 127mm (5") Explore Scientific Essential Series air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at ...
View full detailsOriginal price $2,499.00 - Original price $2,499.00Original price$2,499.00$2,499.00 - $2,499.00Current price $2,499.00 -
Original price $2,249.99 - Original price $2,249.99Original price$2,249.99$2,249.99 - $2,249.99Current price $2,249.99Explore Scientific 102mm f/7 Carbon Fiber FCD100 ED Triplet Refractor
Explore ScientificIn StockThis 102mm (4") Explore Scientific Carbon Fiber air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at a surpri...
View full detailsOriginal price $2,249.99 - Original price $2,249.99Original price$2,249.99$2,249.99 - $2,249.99Current price $2,249.99 -
Original price $1,799.99 - Original price $1,799.99Original price$1,799.99$1,799.99 - $1,799.99Current price $1,799.99Explore Scientific ES127 127mm f/7.5 "Essential Series" FCD-1 ED Triplet Refractor
Explore ScientificIn StockThis big 127mm (5") Explore Scientific Essential Series air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at ...
View full detailsOriginal price $1,799.99 - Original price $1,799.99Original price$1,799.99$1,799.99 - $1,799.99Current price $1,799.99 -
Original price $1,799.00 - Original price $1,799.00Original price$1,799.00$1,799.00 - $1,799.00Current price $1,799.00Explore Scientific 102mm f/7 Classic White FCD100 ED Triplet Refractor
Explore ScientificIn StockThis 102mm (4") Explore Scientific Essential Series air-spaced ED triplet apochromatic refractor is loaded with quality optical performance at a su...
View full detailsOriginal price $1,799.00 - Original price $1,799.00Original price$1,799.00$1,799.00 - $1,799.00Current price $1,799.00 -
Original price $5,999.99 - Original price $5,999.99Original price$5,999.99$5,999.99 - $5,999.99Current price $5,999.99
Explore Scientific 140mm f/6.7 FPL-53 Carbon Fiber APO Triplet Refractor With 3" Hexagonal Focuser
Explore ScientificSold Out140mm has long been considered the perfect size for an APO refractor. Explore Scientific makes that size a reality with fantastic optics and mechan...
View full detailsOriginal price $5,999.99 - Original price $5,999.99Original price$5,999.99$5,999.99 - $5,999.99Current price $5,999.99Sold out -
Original price $4,499.99 - Original price $4,499.99Original price$4,499.99$4,499.99 - $4,499.99Current price $4,499.99Explore Scientific 152mm f/8 FCD-1 ED Triplet Refractor, Carbon Fiber, 2.5" Hex Rack And Pinion Focuser
Explore ScientificIn StockThis big and optically excellent 152mm (6") Explore Scientific air-spaced ED triplet apochromatic refractor has a carbon fiber body and a 2.5" Hex ...
View full detailsOriginal price $4,499.99 - Original price $4,499.99Original price$4,499.99$4,499.99 - $4,499.99Current price $4,499.99 -
Original price $11,999.99 - Original price $11,999.99Original price$11,999.99$11,999.99 - $11,999.99Current price $11,999.99
Explore Scientific 165mm f/7 FPL-53 Carbon Fiber APO Triplet Refractor With 3" Hex Focuser
Explore ScientificSold OutEnjoy serious observation with Explore Scientific's flagship telescope, the 165mm FPL-53 refractor. Reveal celestial wonders like the desolate beau...
View full detailsOriginal price $11,999.99 - Original price $11,999.99Original price$11,999.99$11,999.99 - $11,999.99Current price $11,999.99Sold out
