-
Explore Scientific 2" 3x Focal Extender (Barlow)
$299.99Increase your eyepiece magnification by 3x
2" barrel diameter
Keeps eyerelief consistent
-
Tele Vue 2X Powermate image amplifier for 2" eyepieces, with 1.25" eyepiece adapter
$342.01If you need a very high quality 2x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction. Barlow lenses have a negative power that diverges field rays, lengthening the effective focal length of the telescope and increasing the magnification . . . -
Tele Vue 2X Big Barlow for 2" eyepieces, with 1.25" eyepiece adapter
$228.01This 2" 2x Clamp Ring Big Barlow can be used with any telescope using a 2" focuser. As it is only 4.5" long, it can also be used in most 2" star diagonals for 2x magnification.It can also be placed into a 2" focuser in front of a 2" star diagonal to give higher magnification than the nominal 2x. Some refractors might not have enough focuser travel to allow this directly, however. . . .
-
Tele Vue 4X Powermate image amplifier for 2" eyepieces, with 1.25" eyepiece adapter
$349.01If you need a very high quality, very high power 4x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction.Barlow lenses have a negative power that diverges field rays, lengthening the effective focal length of the telescope and increasi . . .
-
Tele Vue T-Ring adapter for 2" 2x Powermate
$60.00This threaded photographic adapter ring replaces the 2" eyepiece holder on the 2" 2x TeleVue Powermate Barlow. After unscrewing the black 2" eyepiece holder from the chrome barrel containing the optics of the Powermate, the adapter threads directly onto the chrome barrel in place of the eyepiece holder. The adapter has T-threads on the other end that allow a T-ring to be attached to the adapter so . . . -
2.4X Dakin Barlow for 1.25" eyepieces
$210.00This Ralph Dakin doublet design is considered by many professional astronomers to be the Rolls-Royce of 1.25" Barlows. It has a magnification of 2.4x for non-repeating eyepiece powers.
-
1.25" 1.6X Extender-Q for Takahashi refractors
$640.00This dual purpose Takahashi optical system is both a 2" 1.6x Barlow and a field flattening photographic tele-extender designed for use with Takahashi FSQ-106/Sky 90 refractors . . . -
Tele Vue T-Ring adapter for 2" 4x Powermate
$60.00This threaded adapter ring replaces the 2" eyepiece holder on the 2" 4x TeleVue Powermate Barlow and can only be used with the newest version of the Powermate (our part #9140C). After unscrewing the black 2" eyepiece holder from the chrome barrel containing the optics of the Powermate, the adapter threads directly onto the chrome barrel in place of the eyepiece holder. The adapter has T-threads th . . . -
2X 1.25" Barlow with compression ring
$204.00This quality 2x Barlow is designed to mount in front of your star diagonal and uses a non-marring compression ring to hold the diagonal in place, rather than an easily-lost metal thumbscrew . . . -
Tele Vue 5X Powermate image amplifier for 1.25" eyepieces
$228.01If you must wear glasses while observing, and you're looking for an ultra high power Barlow to get high magnifications from your favorite long focal length/long eye relief eyepieces, look no further than this 5x Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction.Barlow lenses have a n . . .
- Telescopes
- Shop by Category
-
By Manufacturer
- Astro-Tech
- Celestron
- Celestron Advanced VX
- Celestron AstroMaster
- Celestron CGEM II
- Celestron CGX
- Celestron CGX-L
- Celestron Cometron
- Celestron CPC
- Celestron EclipSmart
- Celestron EdgeHD Optical Tubes
- Celestron FirstScope
- Celestron LCM
- Celestron NexStar Evolution
- Celestron NexStar SE
- Celestron NexStar SLT
- Celestron Omni XLT
- Celestron Optical Tube Assemblies
- Celestron PowerSeeker
- Celestron RASA
- Celestron RASA Optical Tubes
- Celestron Refractor Optical Tubes
- Celestron SCT Optical Tubes
- Celestron SkyProdigy
- Celestron StarSense Explorer
- Celestron Travel Scope
- Meade LX600
- Explore Scientific
- iOptron
- Lunt Solar Systems
- Questar
- Sky-Watcher
- Takahashi
- TeleVue
- Unistellar
- ZWO
- By Aperture
- Eyepieces & Barlows
- Filters
- Mounts
-
Shop By Category
- Power Adapters And Cords
- Accessory Shelves
- Computers for Telescopes
- Optical Tube Rings
- Tube Rings
- Counterweights
- Declination Controls
- Dovetail Plates
- Drive Motors & Correctors
- Equatorial & Altazimuth Accessories & Adapters
- Equatorial Mounts
- Equatorial Wedges
- Rechargeable Portable Power Supplies
- Tripods
- Altazimuth Mounts
- Vibration Dampeners
- By Telescope Mounts
- By Telescope Mount Type
- By Manufacturer
-
Shop By Category
- CCD & Photographic
-
Shop By Category
- CCD Accessories
- Autoguiders
- CCD Cameras
- Camera Adapters
- Color Filter Wheels
- Coma Correctors
- T-Adapters
- Tele-Extenders
- T-Rings
- Field Flatteners
- Focal Reducer and Field Flattener Combos
- Focusing Aids
- Illuminated Reticle Eyepieces
- Off Axis Guiders
- Photoguide Rings
- Piggyback Camera Mounts
- Camera Tracking Platforms
- Extension Rings
- Photographic Guide Scopes
- By CCD Cameras
- By Manufacturer
-
Shop By Category
- Binoculars
- Spotting Scopes
- Shop By Category
-
By Manufacturer
- Celestron
- Celestron Luminos
- Celestron Omni Plössl
- Celestron X-Cel LX
- Celestron Zoom
- Celestron Advanced VX
- Celestron AstroMaster
- Celestron CGEM II
- Celestron CGX
- Celestron CGX-L
- Celestron Cometron
- Celestron CPC
- Celestron EclipSmart
- Celestron EdgeHD Optical Tubes
- Celestron FirstScope
- Celestron LCM
- Celestron NexStar Evolution
- Celestron NexStar SE
- Celestron NexStar SLT
- Celestron Omni XLT
- Celestron Optical Tube Assemblies
- Celestron PowerSeeker
- Celestron RASA
- Celestron RASA Optical Tubes
- Celestron Refractor Optical Tubes
- Celestron SCT Optical Tubes
- Celestron SkyProdigy
- Celestron StarSense Explorer
- Celestron Travel Scope
- Meade LX600
- Konus
- Pentax
- Questar
- Various Manufacturers
- Celestron
- By Spotting Scope Aperture
- By Spotting Scope Optical Design
- By Spotting Scope Body Style
- Telescope Accessories
- More
-
Brands