Tele Vue 1.25" 2.5x Powermate
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Concept:
"While Barlows are powerful tools, the negative element defining them also limits their ability. 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, with their strong negative element often vignette and degrade long focus eyepieces. My 4-element form 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, I hope you'll agree Powermate raises the standard for image amplification." - Al Nagler
Pump up the power with Tele Vue Powermates. Powermates are ideally compatible with all eyepiece types, are optically "invisible" in the image, and are the best choice for photography when you want a larger image scale. They truly go where no Barlow has gone before.
Of course, Tele Vue touches such as full multi-coating, captive lock screw with brass clamp ring, complete baffling, and 100% quality control at f/4 ensure your satisfaction.
Tele Vue 1.25" Powermate in 2.5x Magnification
This 2.5x Powermate stands less than 3" out of your focuser and is parfocal in 1.25" diagonals and prisms. For this reason, this is highly recommended over standard Barlows for 1.25" refractors such as the Tele Vue-60. Weight = 0.45 lbs.
In addition to full multi-coating, Powermates include other Tele Vue special touches such as safety undercuts where practical on the chrome barrel, captive lock screws that can't fall out, and filter threads. Their 100% QC program at f/4 insures that Powermates will add dramatic power (and NOTHING ELSE) to your favorite eyepieces.
The 2.5x Powermate has a 4mm long female thread to accept stadnard 1.25" astronomy filters.
Other Information
- Country of Manufacture: Japan
Concept:
"While Barlows are powerful tools, the negative element defining them also limits their ability. 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, with their strong negative element often vignette and degrade long focus eyepieces. My 4-element form 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, I hope you'll agree Powermate raises the standard for image amplification." - Al Nagler
Pump up the power with Tele Vue Powermates. Powermates are ideally compatible with all eyepiece types, are optically "invisible" in the image, and are the best choice for photography when you want a larger image scale. They truly go where no Barlow has gone before.
Of course, Tele Vue touches such as full multi-coating, captive lock screw with brass clamp ring, complete baffling, and 100% quality control at f/4 ensure your satisfaction.
Tele Vue 1.25" Powermate in 2.5x Magnification
This 2.5x Powermate stands less than 3" out of your focuser and is parfocal in 1.25" diagonals and prisms. For this reason, this is highly recommended over standard Barlows for 1.25" refractors such as the Tele Vue-60. Weight = 0.45 lbs.
In addition to full multi-coating, Powermates include other Tele Vue special touches such as safety undercuts where practical on the chrome barrel, captive lock screws that can't fall out, and filter threads. Their 100% QC program at f/4 insures that Powermates will add dramatic power (and NOTHING ELSE) to your favorite eyepieces.
The 2.5x Powermate has a 4mm long female thread to accept stadnard 1.25" astronomy filters.
| Free Shipping Graphic | Free US Shipping | ||||||||||||||||||||||||||||||||||||||||||||
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| Special Text Below Specs |
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| Hide Found a better Shipped Price on Frontend? | No |
| Size Format | 1.25 inch |
|---|---|
| Magnification Factor | 2.5x |
| Number of Lens Elements | 4 |
| Lens Coatings | Fully multicoated |
| Total Length | 4.26 inches / 108.2 mm |
| Length of Nosepiece | 1.61 inches / 41 mm |
| Outside Length of Upper Body | 2.65 inches / 67.2 mm |
| Insertion Depth | 1.65 inches / 42 mm |
| Max Diameter Excluding Thumbscrew | 2.27 inches / 57.6 mm |
| Clear Aperture | 0.71 inches / 18 mm |
| Weight | 7.3 oz / 207 g |
| Barlow Lens Cell Removable | No |
| Filter Threads at Bottom of Barlow Cell | Yes - 1.25" (M28.5x0.6) Filter Threads |
| Filter Threads Between Barlow Cell and Tube | N/A |
| Barrel Type | Smooth-sided |
| Compatible Agena Bolt Case (with Screw Removed) | N/A |
| Compatible Bolt Case (with Screw Attached) | 65x80 |
| Number of Thumbscews | 1 |
| Thumbscrew Thread Specification | Coming Soon |
| End Caps (Subject to change without notice) | 2 |
| Compression Band/Ring in Eyepiece Holder | Yes |
| Country of Manufacture | Not disclosed by manufacturer |
Concept:
"While Barlows are powerful tools, the negative element defining them also limits their ability. 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, with their strong negative element often vignette and degrade long focus eyepieces. My 4-element form 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, I hope you'll agree Powermate raises the standard for image amplification." - Al Nagler
Pump up the power with Tele Vue Powermates. Powermates are ideally compatible with all eyepiece types, are optically "invisible" in the image, and are the best choice for photography when you want a larger image scale. They truly go where no Barlow has gone before.
Of course, Tele Vue touches such as full multi-coating, captive lock screw with brass clamp ring, complete baffling, and 100% quality control at f/4 ensure your satisfaction.
Tele Vue 1.25" Powermate in 2.5x Magnification
This 2.5x Powermate stands less than 3" out of your focuser and is parfocal in 1.25" diagonals and prisms. For this reason, this is highly recommended over standard Barlows for 1.25" refractors such as the Tele Vue-60. Weight = 0.45 lbs.
In addition to full multi-coating, Powermates include other Tele Vue special touches such as safety undercuts where practical on the chrome barrel, captive lock screws that can't fall out, and filter threads. Their 100% QC program at f/4 insures that Powermates will add dramatic power (and NOTHING ELSE) to your favorite eyepieces.
The 2.5x Powermate has a 4mm long female thread to accept stadnard 1.25" astronomy filters.
Other Information
- Country of Manufacture: Japan
| Free Shipping Graphic | Free US Shipping | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Special Text Below Specs |
|
||||||||||||||||||||||||||||||||||||||||||||
| Hide Found a better Shipped Price on Frontend? | No |
| Size Format | 1.25 inch |
|---|---|
| Magnification Factor | 2.5x |
| Number of Lens Elements | 4 |
| Lens Coatings | Fully multicoated |
| Total Length | 4.26 inches / 108.2 mm |
| Length of Nosepiece | 1.61 inches / 41 mm |
| Outside Length of Upper Body | 2.65 inches / 67.2 mm |
| Insertion Depth | 1.65 inches / 42 mm |
| Max Diameter Excluding Thumbscrew | 2.27 inches / 57.6 mm |
| Clear Aperture | 0.71 inches / 18 mm |
| Weight | 7.3 oz / 207 g |
| Barlow Lens Cell Removable | No |
| Filter Threads at Bottom of Barlow Cell | Yes - 1.25" (M28.5x0.6) Filter Threads |
| Filter Threads Between Barlow Cell and Tube | N/A |
| Barrel Type | Smooth-sided |
| Compatible Agena Bolt Case (with Screw Removed) | N/A |
| Compatible Bolt Case (with Screw Attached) | 65x80 |
| Number of Thumbscews | 1 |
| Thumbscrew Thread Specification | Coming Soon |
| End Caps (Subject to change without notice) | 2 |
| Compression Band/Ring in Eyepiece Holder | Yes |
| Country of Manufacture | Not disclosed by manufacturer |
Tele Vue 1.25" 2.5x Powermate