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Home Accessories Barlow Lenses Barlows 1.25 Inch Explore Scientific 3x Barlow - Focal Extender
This excellent 3x optical amplifier is a fully multicoated 4 element design, ideal for both visual and imaging use. The Explore Scientific 3x Barlow - Focal Extender's telecentric design retains the eye relief characteristics of any eyepiece used in conjunction with it - unlike conventional and less advanced true Barlow lens designs. This is an invaluable advantage for visual work - particularly for those who wear glasses for observing. The field characteristics of this design are extremely good - a boon for visual work and imaging alike, particularly on large well illuminated objects like the Sun (with appropriate filtration, of course) and the Moon. Blackened edges are found throughout the Explore Scientific 3x Barlow - Focal Extender, decreasing the likelihood of contrast-robbing light scatter.
Handily comes with 1.25" threads for filters - a rarity in focal extender designs. If you're looking for a versatile focal extender for both visual and imaging work alike - then look no further.Specifications:• Four-lens telecentric teleextender 3x• Multiplying the effective focal length by 3x• Fully multicoated design with four lenses• Telecentric optical design for excellent sharpness• All lens edges blackened for maximum contrast• Eyepiece and teleextender barrel size: 1.25"• Filter thread for colour, ND, polarising or nebula filters
first class barlow if you put quality before cost just bought explore scientific 3x barlow- focal extender and used it on my skywatcher ex150 to view Jupiter its amazing no darkening you get with some barlows like the kit one I got with the telescope only down side the barlow was £20 more than the review in mays issue of sky at night but worth it (28/05/2017) j gregory - newcastle
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