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Condition:
This is a GSO 2.5x Barlow in excellent condition. This includes both the dust caps as well as the original box. The optics and the body are both clean and free of any marks.
Description:
Please note: Despite the product being specificed as a 2.5x barlow, a number of users have reported that this operates closer to 2.1 or 2.2x natively, although you can get close to 2.5x by sliding your eyepiece out of the holder a bit or adding a short extension.
Quick Overview
- GSO's 1.25" 2.5x fully apochromatic Barlow increases the magnification of each eyepiece and effectively doubles the number of eyepieces at your disposal
- Low profile maintains a comfortable viewing position
- Air-spaced, three-element, fully-multicoated ED lenses with excellent color correction, sharpness, and image brightness
- Precision-machined aluminum barrel with high-quality black-anodized finish and knurled ring to aid in handling
Product Details
If you need more power than your eyepieces alone can provide, we offer a new apochromatic 2.5x Barlow lens from GSO (Guan Sheng Optical) to give a big magnification boost to any 1.25" eyepiece it's used with.
Nothing has been compromised in GSO's latest and finest offering. This Barlow features an air-spaced, three-element, apo design with fully multicoated optics. The housing is precision machined from aluminum stock and black anodized to a hard finish. The lens edges and inner barrel are blackened to provide maximum contrast. The Barlow body includes a brass compression ring so that your eyepiece barrels are not marred by the captive set screw. The 2.5x model has a clear aperture of 23mm. For those who need a very high quality Barlow for all-round use, the 2.5x barlow is a very nice step up from the typical 2x achromatic barlows commonly found on the market.
Specifications:
- Barrel size = 1.25" (31.7mm)
- Magnification factor = 2.5x
- Weight = 3.5oz (99gm)
- Total height = 2.95" (75mm)
- End caps = 2
- 1.25" filter threads on bottom of barlow: No
- Made in Taiwan