TeleVue Barlows and Powermates
TeleVue Barlows and Powermates are used to amplify or enlarge images in both visual and imaging applications. Barlows are powerful tools for extending an eyepiece collection at minimal cost, however; there are certain practical limitations to their application. The simple negative element Barlow increases eyepiece eye-relief. With short focal length eyepieces the effect is negligible. However, on long focal length eyepieces the exit pupil position moves well beyond the designer's intended position, resulting in vignetting with many eyepieces. This is why shorty Barlows in particular often vignette and degrade long focus eyepieces.
The 4-element TeleVue Powermate image amplifier picks up where the Barlow concept can go no further. Powermate is a technically universal solution, using a positive field lens to redirect field rays. The result is an exit pupil that stays where the eyepiece designer intended. With freedom from aberrations, greater magnification potential, and compact size, the 4-element TeleVue Powermates raise the bar for image amplification.
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TeleVue 2x Powermate 2"
- TeleVue 2x 2 inch Powermate is a compact, high power, fully corrected image amplifier providing a 2x amplification in a 2-inch format. read more...
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Our price: $310.00
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TeleVue 4x Powermate 2"
- The TeleVue 4X Powermate is very popular for imaging applications with short focal length refractors where significant image amplification is needed. read more...
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Our price: $320.00
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TeleVue 2.5x Powermate 1.25"
- TeleVue Powermate goes beyond the Barlow concept to achieve the goal of a compact, high power, fully corrected image amplifier. read more...
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Our price: $205.00
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TeleVue 5x Powermate 1.25"
- The 5x Powermate is TeleVue's most powerful tele-extender, and is most commonly used for planetary imaging applications. read more...
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Our price: $205.00
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TeleVue 2x Barlow 1.25"
- Features include parfocalization, 1.25 inch filter threads, captive lock screws that won't fall out and full multicoatings. read more...
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Our price: $120.00
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TeleVue 3x Barlow 1.25"
- The TeleVue 3x Barlow is a relatively inexpensive way to gain a lot of magnification, provided that your telescope is up to the task. read more...
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Our price: $120.00
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TeleVue 2x Big Barlow 2"
- The 2X Big Barlow is parfocal with both 2 and 1.25-inch eyepieces, is threaded for 48mm filters, and is ideal for use with Newtonian telescopes. read more...
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Our price: $210.00
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TeleVue 2x Powermate 2"
- TeleVue 2x 2 inch Powermate is a compact, high power, fully corrected image amplifier providing a 2x amplification in a 2-inch format. read more...
Our price: $310.00
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TeleVue 4x Powermate 2"
- The TeleVue 4X Powermate is very popular for imaging applications with short focal length refractors where significant image amplification is needed. read more...
Our price: $320.00
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TeleVue 2.5x Powermate 1.25"
- TeleVue Powermate goes beyond the Barlow concept to achieve the goal of a compact, high power, fully corrected image amplifier. read more...
Our price: $205.00
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TeleVue 2x Barlow 1.25"
- Features include parfocalization, 1.25 inch filter threads, captive lock screws that won't fall out and full multicoatings. read more...
Our price: $120.00
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TeleVue 2x Big Barlow 2"
- The 2X Big Barlow is parfocal with both 2 and 1.25-inch eyepieces, is threaded for 48mm filters, and is ideal for use with Newtonian telescopes. read more...
Our price: $210.00
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