---
product_id: 441487211
title: "ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120"
brand: "zwo"
price: "€ 366.08"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/441487211-zwo-30mm-f-4-mini-guide-scope-for-asi-cameras
store_origin: FI
region: Finland
---

# 120mm focal length 30mm aperture 500g weight ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120

**Brand:** zwo
**Price:** € 366.08
**Availability:** ✅ In Stock

## Summary

> 🌌 Capture the cosmos with precision!

## Quick Answers

- **What is this?** ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 by zwo
- **How much does it cost?** € 366.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/441487211-zwo-30mm-f-4-mini-guide-scope-for-asi-cameras)

## Best For

- zwo enthusiasts

## Why This Product

- Trusted zwo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Mounting:** Includes Vixen/Synta style bracket for quick setup.
- • **Adjustable Focus:** Tailor your setup with 0-20mm back focus adjustment.
- • **Compact & Lightweight:** Perfect for on-the-go astrophotography enthusiasts!
- • **Universal Compatibility:** Seamlessly integrates with all ZWO cameras for effortless guiding.
- • **Astrophotography Essential:** Elevate your stargazing game with precision guiding.

## Overview

The ZWO 30mm f/4 Mini Guide Scope is a lightweight and compact solution for astrophotography, featuring a 30mm aperture and 120mm focal length. It is compatible with all ZWO cameras, offers adjustable back focus, and includes a mounting bracket for easy installation.

## Description

ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120

## Features

- Lightweight and compact ZWO Mini Guide Scope with 30mm aperture and 120mm focal length for autoguiding during astrophotography with telescopes of <1200mm effective focal length
- Works with all ZWO cameras including the ASI120-series and 'Mini-series' autoguiding cameras; standard-sized ZWO cameras mount directly with M42x0.75 threads, while smaller ZWO 'Mini' cameras or any camera with a 1.25" nosepiece can be inserted into the tube and held in place with locking screws, just like an eyepiece
- Adjustable objective lens cell enables 0-20mm of back focus for a variety of cameras and accessories
- Weighs just 500g (1.1 lbs) and has length of 4.8" (about 123mm)
- Includes Vixen/Synta style mounting bracket and guide rings (camera not included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ZWO Optical |
| Color | black |
| Style | compact, durable |
| Sport | Hunting |
| Item Weight | 10.6 Ounces |
| Material | Metal |
| Objective Lens Diameter | 50 Millimeters |
| Compatible Devices | Camera |
| Mounting Type | Dovetail Mount |
| Night vision | No |
| Field Of View | 34.3 Degrees |
| Manufacturer | ZWO |
| UPC | 607467927989 |
| Item Package Dimensions L x W x H | 5.47 x 5.43 x 2.4 inches |
| Package Weight | 0.33 Kilograms |
| Brand Name | ZWO Optical |
| Part Number | OFIN-ZW-30F4 |

## Product Details

- **Brand:** ZWO
- **Colour:** black
- **Sport:** Airsoft
- **Item weight:** 10.6 Ounces
- **Material:** Aluminum

## Images

![ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 - Image 1](https://m.media-amazon.com/images/I/51kojtmpJkL.jpg)
![ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 - Image 2](https://m.media-amazon.com/images/I/61YsjxE66XL.jpg)
![ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 - Image 3](https://m.media-amazon.com/images/I/51oBEaMEeeL.jpg)
![ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 - Image 4](https://m.media-amazon.com/images/I/51Zc72EgdrL.jpg)
![ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120 - Image 5](https://m.media-amazon.com/images/I/51Ns+aATKIL.jpg)

## Questions & Answers

**Q: How do you mount this to the top of a celestron c6 ota?**
A: I don’t know how to mount it to a Celestron.  I have a large dovetail bar on the top of my Ritchey that I connect accessories to, like guide scopes.  My recommendation would be to not use a Celestron product unless it’s an eyepiece. 🤷🏻‍♂️

**Q: Will this guide scope work for a c8 ota at f6.3 (1250 mm fl) on an avx gem?**
A: Most Astrophotography with C8 will use 60mm guide scope that is a starting point for guiding C8 with 6.3 reducer.

**Q: Will the zwo asi120mm mini work ok with this scope?**
A: Yes

**Q: Would this scope be a good match with the skywatcher evostar 72ed focal length of 420mm?**
A: Yes

## Frequently Bought Together

- ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120
- ZWO ASI120MM-Mini 1.2MP Monochrome Astronomy Camera, Compact, 1280x960 CMOS Sensor, USB2.0 Type-C, ST4 Port, Black
- SVBONY Universal Dovetail Base, Finderscope Mount Bracket, for Installation of Finder Scope for Optical Telescope

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-03*