Svbony SV216 1.25 inch 2x/3x Barlow lens for astronomical telescope

Barlow lens for telescope — The Svbony SV216 Barlow lens is a high-quality optical accessory designed for astronomical telescopes, helping to increase the magnification of the observed image without losing its clarity. This Barlow lens is perfect for both visual observations and astrophotography, as it provides high image contrast and minimal optical aberration. Suitable for users who wear glasses.

Barlow lens for telescope: Svbony SV216 Barlow lens - key features

• Four-element optical system — all four lens elements feature multi-layer coating, ensuring a bright and clear image without distortion.
• Blackened lens edges — reduces internal light scattering and increases contrast when observing celestial objects.
• Reduced chromatic and spherical aberration — compared to standard Barlow lenses, the field of view remains flatter and more accurate.
• Eye relief maintained — even with increased magnification, the user can still use a lower-power eyepiece for comfort, which is especially beneficial for people who wear glasses.
• Flexible mounting position — the lens can be inserted into any position in the optical chain between the eyepiece and the camera, without changing the final magnification.
• Additional equipment — a dust cap and end cover are included to protect the lens from dust and damage.

Technical specifications

• Brand: SVBONY
• Model: SV216
• Tube diameter: 1.25 inches
• 3x Barlow lens:
• Magnification factor: 3x
• Number of lens elements: 4
• Lens coating: full multi-layer coating
• Length of upper body: 63.5 mm
• Insertion depth: 32.5 mm
• Maximum diameter (without locking screw): 44 mm
• Net weight: 173 g
• Filter thread: M28.5x0.6
• Tube type: straight tube
• Compression ring in eyepiece holder: yes
• Tube material: aluminum
• Number of securing screws: 3 pcs.
• 2x Barlow lens:
• Magnification factor: 2x
• Number of lens elements: 4
• Lens coating: full multi-layer coating
• Length of the upper body: 59.5 mm (2.34 inches)
• Insertion depth: 39.5 mm (1.55 inches)
• Maximum diameter (without securing screw): 44 mm (1.73 inches)
• Net weight: 219 g (7.72 oz)
• Filter thread: M28.5x0.6
• Tube type: conical tube
• Tube material: stainless steel
• Number of securing screws: 3 pcs.
• Securing screw thread: M3x10
• Compression ring in eyepiece holder: yes

Who is it suitable for and how to use it?

The Svbony SV216 Barlow lens is suitable for both beginners and experienced astronomy enthusiasts who want to expand the capabilities of their telescope without purchasing additional eyepieces. It is useful for both visual observations and astrophotography with a camera. Simply insert the lens between the eyepiece and the telescope or in front of the camera - the magnification will depend on the distance of the selected lens.

Buyer questions

Question: What magnification does the SV216 Barlow lens provide?
Depending on the model, the lens provides 2x or 3x magnification. The final magnification depends on the position of the lens in the optical chain between the eyepiece and the camera.

Question: Is it suitable for use with glasses?
Yes, the lens maintains a large eye relief, making it comfortable to use for people who wear glasses or own telescopes with short focal lengths, without compromising viewing comfort.

Question: What is the material of the lens body?
The 3x version's tube is made of aluminum, while the 2x version is made of stainless steel. Both versions have a compression ring in the eyepiece holder for secure fixing.

The Svbony SV216 Barlow lens is a reliable choice for those who want to improve their telescope's capabilities while maintaining high image quality. This Barlow lens is perfect for both observation and photography.

Sources: Barlow lens | TopSmart store