PF10000471846
In stock
Alstar 2X High Power Barlow Lens for Telescopes, 2 inch 4-Element Multi-Coated Telescope Accessory, Color-Free Planetary Photography Astrophotography Accessories
$152.99
- Zoom In Twice As Much: Without the barlow lens; the planets would appear so small that hardly any detail would be visible; This 2X Barlow Lens doubles the magnification of the telescope's eyepiece without any significant reduction in optical quality
- Fully Multi-Coating: This Barlow lens utilizes a four-lens design with multiple layers of coating to magnify magnification without reducing contrast; This means that your power-boosted observations will be optimized for sharpness; clarity and brightness
- Aluminum Case: The housing is machined from aluminium with a high grip rubber armored center section; This high-quality workmanship ensures the longevity of the lens; The interior is matte-finished to prevent light reflection from affecting the image
- Wide Range Of Use: The Barlow lens can be fitted with not only 2-inch eyepieces but also 1.25-inch eyepieces; Built-in brass ring provides optimal protection and reduces injury when mounting eyepieces
- 2-Inch Internal Thread: Two-inch internal threads designed to work with two-inch telescope accessories such as two-inch filters
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As its name implies, the High-Power 2" 2x Barlow doubles the magnifying power of any 2" eyepiece, essentially dividing the eyepiece's focal length by a factor of 2. For example: using a 42mm eyepiece in the High-Power 2x Barlow provides the same magnification you'd normally get from a 21mm eyepiece (42 / 2 = 21). Using this simple formula, you can easily determine how each of your 2" telescope eyepieces will perform when inserted in the High-Power 2x 4-Element Barlow Lens. An included 2"-to-1.25" step-down adapter allows use of both smaller 1.25" eyepieces and big 2" oculars with the versatile Orion High-Power 2" 2x Barlow Lens.
| Brand Name | A ALSTAR |
|---|---|
| Part Number | SKU_AM_BL2I2X4E |
| Magnification Maximum | 5.000000 |
| Zoom Ratio | 2 |
| Field of View | 26.000000 |
| Field of View Unit | Degrees |
| Minimum Focal Length | 21.000000 |
| Minimum Focal Length Unit | Millimeters |
| Objective Lens Diameter | 42.000000 |
| Objective Lens Diameter Unit | Millimeters |
| Optical Tube Length | 300.000000 |
| Optical Tube Length Unit | Millimeters |
| Item Depth Unit | Inches |
| Item Depth Front to Back | 5.000000 |
| Item Height Unit | Inches |
| Height Top to Bottom | 2.750000 |
| Item Width Unit | Inches |
| Item Width Side to Side | 4.900000 |
| Focal Length Description | 300 millimeters |
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