Barlow lenses and focal extenders for telescopes and astrophotography

Sky Rover 2x Barlow Extender Compared with the ordinary Extender, the telecentric Extender structure does not generate large angle extended beam, w...

Masuyama 1.25″ Barlow Lenses Japanese premium brand -MASUYAMA 1.25″ barlow lenses Fully designed and produced by MASUYAMA (Ohi Kohki Co., Ltd.) F...

Baader SolarSpectrum Research Grade 0.4x Telecompressor 2" Like the TZ-3 telecentric, the RG 0.4x Telecompressor features 46mm clear aperture thro...

Baader SolarSpectrum 0.7x Telecompressor 2" Mounted onto the eyepiece side of the SolarSpectrum filter and reduces the telecentric system extended...

Baader M68 Telecompendium for Telecentric Systems and FFC   Telescopes which are used for photography on a professional level need to avoid any de...

Daystar Combo Quark Accessories Bundle Daystar Filters is excited to announce a brand new Quark optimized accessory series designed to fit our clas...

Baader Carl Zeiss 1.25¨ Eyepiece Barlow Lens 2X Available again for a limited time: Carl Zeiss 1¼" Abbe Barlow lens with T-2 thread made in German...

Baader SunDancer II Telecentric System Achromatic 3x telecentric system Four-lens optical design, BBAR (Broad-Band Anti-Reflection) coating Anti-r...

Baader Research Grade TZ-3 Telecentric System (3x focal length) Baader Telecentric Systems for focal length extension for supplying a parallel opti...

Explore Scientific 1.25" 5X Focal Extender   A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it...

Explore Scientific 1.25" 3X Focal Extender   A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it...

Explore Scientific 2" 3X Focal Extender   The Explore Scientific 3X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. f...

Antares 2" 2x Barlow for Newtonians with Twist-lock  Antares 2" 2X Barlow for Newtonians, with Twist-lock. 2UB2N can be used in a refractor without...

Antares 3x 1.25" Barlow  1.25" 3X barlow, 27mm aperture doublet, Fully Multicoated Antares barlows will extend the focal length of y...

Orion Variable Projection Tele-Extender for LX Telescopes (07348) Meade brand tele-extender Tele-Extender for LX Models 15-22mm eyepiece Dimensio...

Takahashi Extender-CR  The Takahashi Extender-CR 1.5X is designed specifically for the CCA and Corrected Mewlon series of telescopes.  It incr...

Takahashi Extender 1.5x for EPSILON-130D The 1.5x extender for Takahashi Epsilon-130D telescope For Epsilon-130D users who want to shoot at longer ...

Takahashi Extender 1.5x for EPSILON-180ED The 1.5x extender for Takahashi Epsilon-180ED telescope For Epsilon-180ED users who want to shoot at long...

Takahashi 1.5X Extender for E-160ED The ε-Extender is a high performance extender, composed of 7 elements in 5 groups. Coma aberration is corr...

Takahashi 2x Barlow lens 2x Barlow 1.25" with Compression Ring In the Box Takahashi 2x Barlow lens  Manual & Warranty  Takahashi 5-Years ...

Takahashi Extender-Q 1.6x  The Takahashi Extender-Q 1.6X is designed to work with the FS and FC series of Takahashi telescopes.  It extends th...

Takahashi FOA-60 Extender 1.7 XR The Takahashi Extender 1.7XR converts the FOA-60 telescope to the FOA-60Q, resulting in a final focal length ...

Takahashi Extende-CQ 1.7x  FS-60CB to FS-60Q upgrade kit The Takahashi Extender-CQ 1.7X is designed specifically for the FS-60CB telescope.  ...

Shelyak Alpy DLSR Barlow Element  The mechanical backfocus of the Alpy 600 (distance between Alpy 600 and your camera CCD chip) has to be between 1...

Kowa 1.6x extender for TSN-660M/600/82SV series Compatible with: TSN-82SV, TSN-660, and TSN-600 series Also compatible with many historical spotti...

Antares 5x 1.25" Twist-Lock Barlow Antares Twist-lock barlows make for easy eyepiece in-out and work with any barrel format. These extend focal len...

Antares 5x 1.25" Barlow Antares barlows will extend the focal length of your telescope for greater magnification. By generating negative spherical ...

Antares 3x 1.25" Twist-Lock Barlow Antares Twist-lock barlows make for easy eyepiece in-out and work with any barrel format. These extend focal len...