---
product_id: 38932454
title: "Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube"
brand: "astromania"
price: "$57"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/38932454-astromania-bahtinov-mask-focusing-mask-for-telescopes-fm60mm-for-tube
store_origin: NZ
region: New Zealand
---

# Universal Fit Precision Focus Durable Design Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube

**Brand:** astromania
**Price:** $57
**Availability:** ✅ In Stock

## Summary

> 🔍 Focus Like a Pro with Astromania!

## Quick Answers

- **What is this?** Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube by astromania
- **How much does it cost?** $57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/38932454-astromania-bahtinov-mask-focusing-mask-for-telescopes-fm60mm-for-tube)

## Best For

- astromania enthusiasts

## Why This Product

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

## Key Features

- • **Gentle Grip:** Three metal posts with non-scratching sleeves protect your telescope.
- • **Built to Last:** Crafted from 2mm thick laser-cut plexiglass for durability.
- • **User-Friendly:** Simple installation ensures you can focus on the stars, not the setup.
- • **Effortless Focusing:** Eliminate guesswork with mathematical precision.
- • **Versatile Compatibility:** Fits a wide range of telescopes with an adjustable diameter of 65-100mm.

## Overview

The Astromania Bahtinov Mask is a precision tool designed for astronomers seeking effortless focusing for their telescopes. Made from durable 2mm thick laser-cut plexiglass, it features a universal fit for optical tubes ranging from 65mm to 100mm. With a gentle grip that protects your telescope's surface and a user-friendly design, this mask ensures you can achieve the best focus quickly and easily, regardless of your telescope type.

## Description

Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube

## Features

- Bahtinov masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task; the best focus for your telescope quickly and easily
- Suitable for use on all types of telescope; they are made from precision laser cut enforced plexiglass that is stiff and long lasting; they will never be brittle in the cold; unlike some other masks which are made from normal plastics
- The masks grip the telescope tube gently but firmly with three metal posts which have non-scratching silicon sleeves to protect valued telescope surface; mask remains centered since 3-post mounting; while fitting a wider range of telescopes
- Made from 2mm thick laser cut plexiglass and securing screws are capped with soft plastic so that do not damage telescope; They have adjustment latitude of about 65-100mm that adjustable to fit optical tubes unlike masks which only fit one telescope
- Please be assured these focusing masks will work excellently for both reflectors and refractors with whatever focal length; all you need to do is to measure telescope tube size and choose right size of mask contact us if not sure where to measure

## Product Details

- **Brand:** Astromania
- **Optical Tube Length:** 60 Millimeters
- **Eye Piece Lens Description:** NO
- **Objective Lens Diameter:** 100 Millimeters
- **Telescope Mount Description:** Equatorial Mount
- **Focus Type:** Center Focus
- **Item Weight:** 1.1 Ounces
- **Compatible Devices:** Camera, DSLR, Webcam
- **Lens Coating Description:** UV-Protective, Scratch-Resistant
- **Exit Pupil:** 3 Millimeters

## Images

![Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube - Image 1](https://m.media-amazon.com/images/I/618gIyeZNML.jpg)
![Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube - Image 2](https://m.media-amazon.com/images/I/61bjsfNQrUL.jpg)
![Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube - Image 3](https://m.media-amazon.com/images/I/611n8fZYi+L.jpg)
![Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube - Image 4](https://m.media-amazon.com/images/I/71X06Tx5tDL.jpg)
![Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube - Image 5](https://m.media-amazon.com/images/I/61thKFor1tL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Astromania Bahtinov Mask Focusing Mask for Telescopes - FM60mm for a Tube Outer Diameter (OD) from 65mm-100mm - can be Mounted with The Brass Screws Inside or Outside The drawtube
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**Shop now:** [https://www.desertcart.nz/products/38932454-astromania-bahtinov-mask-focusing-mask-for-telescopes-fm60mm-for-tube](https://www.desertcart.nz/products/38932454-astromania-bahtinov-mask-focusing-mask-for-telescopes-fm60mm-for-tube)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-23*