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- Barlow Lenses
Product Description
3 | Magnification Factor | 2 |
1.25" | Connection | 1.25" |
Multiple | Coating | Multiple |
4 | Number of Lenses | 3 |
| Ring Clamp | |
| Filter Thread | |
3 | Magnification Factor | 5 |
1.25" | Connection | 1.25" |
Multiple | Coating | Multiple |
4 | Number of Lenses | 4 |
| Ring Clamp | |
| Filter Thread | |
Use this Barlow Where in Particular Where You Need a Shorter Length

It's an ideal accessory for high-power lunar and planetary observation, as well as lunar and planetary imaging when used with a solar system camera or webcam. Use this handy magnification-boosting Barlow for up-close views of Mars, ringed Saturn, or to study craters of the Moon in exquisite detail.
Very Short Construction
- The extra power boost provided by this Barlow Lens is especially helpful when used with short focal length telescopes that would otherwise not be able to achieve the desired magnification with very short focal length eyepieces.
- Use this Barlow where in particular where you need a shorter length. Sometimes the total accessory length with eyepiece, adapter or camera can be rather long. The optical path of Alstar 1.25" 4-Elements 3x Barlow Lens is only 43mm.

Insert the 1.25"4-Elements 3x Barlow Lens into your telescope's focuser or diagonal, and then insert any 1.25" eyepiece into the barlow lens, gently securing it in place with the knurled set screw grips. Then adjust the telescope's focus wheels to enjoy triple the magnification of the eyepiece used.

The 1.25" 4-Element 3x Barlow Lens triple the power of any 1.25" telescope eyepiece. The lens elements are fully multi-coated with anti-reflection coatings, and edge-blackened to provide maximum light throughput and optimal image contrast.

Eyepiece Holder Thumbscrew
A knurled thumbscrew for fixation, which can be easily fixed even in cold winter when wearing gloves.

All Metal Structure
The housing is made of anodized aluminum, which makes the product resistant and not easy to deform. It also adds luster to the product.

Brass Compression Ring
A built-in compression ring grips your eyepieces over a surface and not only at a point, as would be the case with unsophisticated models.

4-Element Design
The 3x Barlow features an enhanced 4-element lens design which preserves the sharpness and contrast of your telescope and telescope eyepieces.
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