EYSDON 50mm Telescope Guide Scope 180mm Focal Length Fully Coated Finder Eyepiece with 1.25" Ports Duable Helical Focuser
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Specifications
- Brand Name
- EYSDON
- Focal Length
- 180mm
- Type
- Monocular
- Lens Diameter
- 50mm
- High-concerned chemical
- None
- Focus Type
- NA
- Material
- Metal
- Tube Travel
- 218mm
- Model Number
- 90861
- Origin
- Mainland China
- Back Focus
- NA
- Choice
- yes
- semi_Choice
- yes
Product Description
Product Description:
50mm guide scope with bright, wide-field optics puts numerous potential guide stars in view so you'll never have to search for one!
Objective Lens diameter: 50mm
Objective Lens Hood: 58mm
Lens Material: Optical Glass
Focal length: 180mm
Lens Structure: One Set of 2 Bonded Lenses
Lens Coating: FMC-Green
Main Tube Material: Metal-Aluminum
Guide Hoop Material: Metal-Aluminum
Interface size: 1-1/4"(About 31.7mm)
External Threads: T2 Male Threads (M42*0.75mm)
Focusing System: Stretch Type Quick Focus + Rotary Fine Focus
Color: As Shown
Package Include:
1 x 50mm Guide Scope
1 x Guide Hoop
Note:
Please allow 0-2mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
If you really care about these details, pls DO NOT order.
Pros & Cons
Pros
- 50mm objective lens delivers bright, wide-field views for easy guide star location
- Includes a durable helical focuser for precise focus adjustments
- Compatible with standard 1.25" eyepieces for broad accessory support
- Metal construction for long-lasting outdoor use
Cons
- No included eyepieces are provided with the guide scope kit
- Physical weight and full size details are not listed in the product specification
- Only compatible with 1.25" eyepieces, limiting accessory options
- No focus type specifications beyond the helical focuser are provided
Common Questions
What materials is this telescope guide scope constructed from?
The main tube of the guide scope is constructed from metal for durability.
What are the key dimensional specifications of this guide scope?
It has a 50mm objective lens diameter, 180mm focal length, and 218mm tube travel.
What devices or setups is this guide scope compatible with?
It features 1.25" eyepiece ports and is designed for use with astronomical telescope and astrophotography setups.
What is the primary usage of this guide scope?
It provides a bright, wide-field view to easily locate guide stars for precise astrophotography focusing.
Where is this product shipped from?
This product originates from Mainland China.
Product information last updated on November 20, 2025