Svbony SV198 50mm Mini Guide Scope Finder with Dual Helical Focuser

Svbony SV198 50mm Mini Guide Scope Finder with Dual Helical Focuser

Name: Svbony SV198 50mm Mini Guide Scope Finder with Dual Helical Focuser
Brand: Svbony
SKU: W9155A
Price: 146.99 USD
Availability: InStock
Rating: 4.8 (5 reviews)

5 | Reviews

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Key Features

Compact and Portable

The lightweight, compact design makes the SV198 a portable and convenient option for accurate star tracking during astrophotography.

50mm Aperture for Clear Views

Features a 50mm aperture that delivers clear, bright images for precise guiding, even in low-light conditions.

Precision Guiding

Ideal for long-exposure astrophotography, the guide scope ensures accurate star tracking to enhance image quality and reduce star trails.

Durable and Reliable

Built with high-quality materials to ensure long-lasting performance and reliability, even in outdoor, rugged environments.

Easy to Mount and Align

Simple to install on most telescopes, with quick alignment adjustments for a seamless integration into your astrophotography setup.

Style: W9155A

W9155A

W9155A-W2370A

W9155A-F9187A

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The 50mm aperture in SV198 guide scope significantly enhances their performance by improving light-gathering capability, resolution, contrast, and overall usability.

A 1.25" eyepiece holder with T2 thread enhances the flexibility and usability of SV198 guide scope by providing standardized compatibility, improved light paths, and secure connections for various accessories.

Guide scope with fine focusing enhances the overall effectiveness and accuracy of astronomical observations by providing clearer images, accurate targeting, and improved optical quality.

Featuring a 45mm extension, SV198 can work with insert guide cameras, such as SVbony SV905C, SV305 and etc. The compatibility enhances the focusing range, reduces vignetting, and provides convenience for astrophotography. Without an extension tube, the SV198 guide scope is compatible with standard 1.25inch eyepieces, meeting your various observation needs.

Without an extension tube, the SV198 guide scope is compatible with standard 1.25inch eyepieces, meeting various observation needs.

The design enhances observational performance by reducing reflective interference, improving image contrast, and lowering optical noise.

Realistic works captured with this device

Messier 42 (M42) The Orion Nebula

SV198 @Anthony Law

Messier 51 (M51) - The Whirlpool Galaxy

SV198 @Anthony Law

Ardsley Astro

SV198 @Anthony Law

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Model	SV198
Type of Optics	Achromat Refractor
Lens Structure	2-Elements/ 1Groups
Tube material	Aluminum
Aperture	50mm / 1.97in
Focal ratio	f/4.1
Focal Length	206.6mm / 8.13in
Coating	Fully multi-coated
Blackened Lens Edges	Yes
Focuser	Dual Helical + Telescopic Design
Focusing stroke	12mm
Connection thread to Eyepiece	1.25" and T2
Base installation type	Vixen standard interface
Net Weight	557g

The Parameter Comparison of SV198、 SV106and SV165

Model	SV198	SV106	SV165
Type of Optics	Achromat Refractor	Achromat Refractor	achromatic optics
Lens Structure	2-Elements/ 1Groups
Tube material	Aluminum	Aluminum Alloy	Aluminum
Aperture	50mm / 1.97in	60mm / 2.36in	30mm/1.18in
Focal ratio	f/4.1	f/4	f/4
Focal Length	206.6mm / 8.13in	240mm /9.45in	120mm
Coating	Fully multi-coated	Fully multi-coated	Fully multi-coated
Blackened Lens Edges	Yes	Yes
Focuser	Dual Helical + Telescopic Design	Helical Focuser with 8 mm Travel	Helical Focuser
Connection thread to Eyepiece	1.25" and T2	1.25inch	1.25in and M42*0.75
Base installation type	Vixen standard interface	Versatile	Vixen standard interface
Tube diameter	55.5mm	66mm	45mm
Dew cap diameter	58mm	69mm	48mm
Total Length	234mm	270mm	112mm
Net Weight	557g	790g	342g

Feature
1. The SV198 50mm small telescope is primarily intended as a guide scope for autoguiding. But it can also be used as a viewfinder or mini telescope.
2. Focusing is done using a precise helical focuser with a millimeter scale and 12mm focus path.
3. 1.25" eyepiece holder with T2 thread.
4. Position clamp screw.
5. Tube rings with Vixen compatible dovetail.
6. The 45mm T2-Extension Tube Male thread M42*0.75; Female thread M42*0.75; eliminates a range of focusing problems.