2X Barlow for 1.25" eyepieces

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This 2-element Barlow has superb sharpness to match that of TeleVue eyepieces. Despite being “merely” an achromatic system, good design gives it better color correction at the edges of the field than some 3-element “apochromatic” Barlows.

It is fully multicoated, with blackened lens edges and internal antireflection threading for excellent contrast. Its barrel is threaded for standard 1.25" filters. There's an undercut safety groove in the barrel that helps hold the Barlow in place should the focuser thumbscrew accidentally loosen. A captive thumbscrew (that can't be lost in the field) holds your eyepieces in place. It has a 3.75" length that allows it to be used in star diagonals.

This TeleVue is parfocal with TeleVue Plössls below 32mm in focal length, so you won’t have to do any major refocusing as you change from an eyepiece alone to an eyepiece/Barlow combination. It is optically corrected down to f/4 for use with fast f/ratio reflectors, but will provide excellent performance with any scope type.

Barrel Size:
The industry standard diameter, as of 2011, is 1.25" and is the most common.  Other sizes available are .965" and 2".
1.25"
Weight:
The weight of this product.
5 oz
Warranty:
5 years
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Overall Product Rating: AstronomicsAstronomicsAstronomicsAstronomicsAstronomics(4.50)   # of Ratings: 2   (Only registered customers can rate)

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5 - Great (50.00%) (1 user)
4 - Good (50.00%) (1 user)
3 - OK (0.00%) (0 users)
2 - Bad (0.00%) (0 users)
1 - Very Bad (0.00%) (0 users)
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1. Brendan on 5/16/2013, said: AstronomicsAstronomicsAstronomicsAstronomicsAstronomics
Great piece for those with 1.25" EPs that need a push and can "double" your collection instantly. Typical TeleVue quality. Why 4 stars? My only concern is that the set screw is not "protected" as some others i.e. the screw impinges directly onto the barrel of your EP and WILL leave a scar. Other offerings have the screw impinging onto a collar that snugs up along a broad area of the EP barrel and will not scar. But the again, I'm anal, so this may not be an issue for some!!!
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2. Mike on 5/16/2013, said: AstronomicsAstronomicsAstronomicsAstronomicsAstronomics
I have owned 3 different barlows, including the Televue, and this one is easily the sharpest of the bunch. I've done side-by-side comparisons with the others, and there is a noticeable difference with the Televue barlow. The fit an finish are also very good.
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52mm x 80mm eyepiece container
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TeleVue - 2X Barlow for 1.25" eyepieces

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TeleVue - 2X Barlow for 1.25" eyepieces
 AstronomicsAstronomicsAstronomicsAstronomicsAstronomics (Average: 4.50 | Users: 2)  Only registered users can submit ratings - Register Here
Our Product #: 7620
Manufacturer Product #: BLW-2125
Price: $125.00  FREE ground shipping - Click for more info
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MSRP: $150.00
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This 2-element Barlow has superb sharpness to match that of TeleVue eyepieces. Despite being “merely” an achromatic system, good design gives it better color correction at the edges of the field than some 3-element “apochromatic” Barlows.

It is fully multicoated, with blackened lens edges and internal antireflection threading for excellent contrast. Its barrel is threaded for standard 1.25" fil . . .






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