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SV165 Mini Guide Scope Support sensitive auto guiding cameras for easy guide star acquisition
Getting this guide scope makes sense for most astrophotographers out there.
If you're just starting out, SV165 Mini Guide Scope is easy-to-use and performs well.
If you're at the other extreme, using SV165 Mini Guide Scope on your smaller imaging rigs is more practical than trying to mount a larger, more exotic guide scope.
If portability is important to you, SV165 Mini Guide Scope's compact size and relatively low weight will cooperate with your requirements.
Note:Back focus distance can stretch up to 45mm. Please pay attention to stretch to the end.

Features:

SVBONY Compact Ultra-Mini Guide Scope for Auto Guiding Cameras
Compact 4.4"mini guide scope with 30mm f/4 aperture optics
Support sensitive auto guiding cameras for easy guide star acquisition
Features precise helical focus adjustment with thumbscrew lock Ring
Designed for use with the Orion ZWO QYH and so on auto guiding cameras (1.25in or M42 mount interface)

Focal Length: 120mm

The objective lens diameter is 30mm. The focal length of the scope is 120mm. F4 aperture optics provides a wide field of view which will help to quickly find the target when performing astronomical observations.;
1.25-inch & M42*0.75

The 1.25-inch interface and M42*0.75 male threads allow to connect with SVbony SV305, ZWO, Orion, QYH and other auto guiding cameras.;
Fully Broadband Multi-Coated

Fully broadband multi-coated optics means the types of coating on all optical surfaces throughout the entire scope. And fully broadband multi-coated optics decreases surface reflectivity therefore allows greater optical through-put across the entire visible light spectrum, increases the light transmission and delivers bright, clear and high-contrast images.
Helical Focus Stroke: 45mm

The 45mm focusing stroke ensures enough focusing range for observing and focus lock ensures a stable focusing. The built-in helical focuser is better for precise focusing of potential guide stars.
Ultra-mini Optics
The guide scope is ultra mini and light, and won’t weight your telescope and mount much.;
High-quality Craftsmanship

High-level CNC machined & Sandblasting Oxidation

Buyer's Show

Imaging telescopes or lenses: AstroTech AT115EDT Scope
Imaging cameras: ZWO 294 MM PRO Imaging Camera
Mounts: Celestron AVX Mount
Guiding telescopes or lenses: SvBony 30 mm f/4 guidescope guide scope
Guiding cameras: asi zwo 120 MC-S Guide Camera
Focal reducers: Astro Tech 0.8x Reducer/Flattener AT0.8x
Software: NINA,PhD2,PixInsight,CPWI
Filters: Chroma O3 3nm filter · Chroma Ha 3nm 31mm filter · Chroma S2 filter
Accessory: ZWO EFW 2" Wheel · Thousand Oaks Dew Controller Heater · ZWO EAF Focuser


Model	SV106 50mm	SV106 60mm	SV165
Type of Telescope	Achromatic Refractor	Achromatic Refractor
Lens	Cemented	Cemented
Tube material	Aluminum Alloy	Aluminum Alloy
Aperture	50mm / 1.97in	60mm / 2.36in
Focal Length	190mm / 7.48in	240mm /9.45in	120 mm
Focal Ratio	F3.8	F4	F4
Coating	Fully multi-coated	Fully multi-coated	FMC
Best for imaging	Deep sky	Deep sky	Deep sky
User level	Intermediate	Intermediate
Rough Focusing Range	30mm	35mm
Focuser	Helical Focuser with 8 mm Travel	Helical Focuser with 8 mm Travel
Connection to eyepiece	1.25inch	1.25inch	1.25inch
Tube diameter	54.5mm
Dewcap diameter	61mm
Total Length	240mm
ncluded accessories:	Tube Rings and Dovetail Rail
Lens Diameter			30 mm
Support interface	1.25in Or M42*0.75 mount Camera	1.25in Or M42*0.75 mount Camera	1.25in Or M42*0.75 mount Camera
Focuser Type			Front Part Focuser
Back Focus			Adjustable
Dovetail includes			1/4″ screw hole
Tube Travel			45 mm
Body Size			92x56x78mm / 3.62x2.20x3.07 in
Surface technology			Aluminum Profile