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

50mm aperture; large diameter objective lens collects more light; the target in the field of view is clearer; convenient to find a target in the sky
Connect telescope camera; as a guide scope can be used with other accessories to easily achieve automatic star guidance
Connect Eyepiece; as a right-angle correct-image optical finder scope (Eyepieces and Prism Diagonal sold separately)
Fully multi-coated glass; multi layer broadband anti reflection coating double glue lens; well made edge coating; higher contrast and clearer field of view
Fine focusing; double spiral fine focusing and pull out coarse focusing structure; simple structure and convenient operation

Description

Specifications

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
Dual Helical Focuser Focusing stroke	11mm
Focusing seat accuracy (Dual Helical Focusing)	0.1mm
Rough Focusing stroke	38mm
Focusing seat accuracy (Rough Focusing)	1mm
Connection thread to Eyepiece	1.25" and T2
Base installation type	Vixen standard interface
Tube diameter	55.5mm
Dew cap diameter	58mm
Total Length	223mm
Net Weight	770g / 28.1oz

What's included

Reviews

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