GSO 1.25 Inch 2X Achromatic Barlow Lens

• GSO's 1.25" 2x achromatic Barlow increases the magnification of each eyepiece and effectively doubles or triples the number of eyepieces at your disposal
• Full unit increases magnification of eyepiece by 2x
• Barlow element can be separated from main tube and threaded directly into a 1.25" eyepiece for approximately 1.5x increase in magnification
• Low "shorty" profile maintains a comfortable viewing position
• Two-element, fully-multicoated lenses with excellent color correction, sharpness, and image brightness

Specifications:

• Barrel Size: 1.25 inch (31.7mm)
• Magnification Factor: 2x
• TypGSO's 1.25" 2x "Shorty" achromatic Barlow is an excellent accessory that allows you to effectively double the number of eyepieces in your collection. This barlow uses two-element, fully-multicoated lenses with excellent color correction and sharpness. The lens edges are blackened to maximize image contrast. The body is precision CNC-machined from aluminum and sports a handsome finish.A really nice feature of this GSO barlow is that the barlow element is housed in a separate metal cell at the bottom that can be unscrewed from the upper tube (see photos). You can then screw the barlow cell directly into 1.25" eyepieces with a standard 1.25" filter thread to increase the magnification of that particular eyepiece while still maintaining a low profile. When screwed into an eyepiece, the barlow will yield approximately 1.5x of magnification. So, for example, a 30mm eyepiece can be used with the barlow element screwed on as a 20mm eyepiece, or with the complete barlow as a 15mm eyepiece. That's like having three eyepieces in one! You can also use the tube by itself without the barlow element as a 36mm (1.4") extension tube for 1.25" eyepieces and accessories.e: Achromatic
• Coatings: Fully multicoated, Blackened lens edges
• Weight: 3.3oz
• Height (Total): 78mm
• End Caps: 2
• 1.25" filter threads on bottom of barlow: No
• Made in Taiwan