TeleVue Big Barlow 2" 2x - Barlow Lens
The TeleVue Big Barlow 2" 2x is specially designed for wide-angle observations and shadow-free photography. With a 2x magnification factor Does this Barlow lens double the effective focal length of your telescope without compromising the field of view?.
Thanks to the generous 2" opening Is this Barlow lens ideal for use with wide-angle eyepieces and fast optical systems?.

Suitable for 1.25″ and 2″ eyepieces
The Big Barlow features a 2" telescope adapter and comes with a 1.25" reduction adapter with spring ring clamp. This allows you to easily switch between 1,25″ and 2″ eyepieces.
The large aperture prevents vignetting and shadow effects, even when using 2" long focal length eyepieces. This makes this Barlow lens particularly suitable for wide-angle visual observations and for photography where a fully illuminated field of view is important.
Achromatic optics with multicoating
The Barlow is constructed from 2 achromatic lens elements with high-quality multicoating. This combination ensures good correction of chromatic aberration and preservation of contrast.
Both in visual use and in photography, the Big Barlow delivers a sharp and high-contrast image.
What we recommend
- Ideal for wide-angle eyepieces in 2" version
- Very suitable for moon and planet photography
- Check if your focuser has sufficient load capacity (weight 340 grams)
What you can do with it
- The focal length of your telescope with 2x extend
- Using wide-angle eyepieces at higher magnifications
- Make shadow-free recordings with a fully illuminated field of view
Specifications
Capacity
- Magnification factor 2
- Telescope connection: 2″
- Optical coating Multiple
- Number of lenses 2
- Ring terminal Yes
General
- Weight (g): 340
- Type: Barlow & reversing lenses
- Design: Barlow lens





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