--- product_id: 45644094 title: "Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm" brand: "astromania" price: "Β₯5740" currency: JPY in_stock: true reviews_count: 10 category: "Astromania" url: https://www.desertcart.jp/products/45644094-astromania-m42x0-75-female-to-m42x0-75-female-thread-telescope store_origin: JP region: Japan --- # Precise 9mm optical length M42x0.75 female threads both sides Durable anodized aluminum build Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm **Brand:** astromania **Price:** Β₯5740 **Availability:** βœ… In Stock ## Summary > πŸ”­ Elevate your stargazing game with precision threading! ## Quick Answers - **What is this?** Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm by astromania - **How much does it cost?** Β₯5740 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/45644094-astromania-m42x0-75-female-to-m42x0-75-female-thread-telescope) ## 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 - β€’ **Lightweight & Portable:** At just 11.34g, it’s easy to carry without compromising durability. - β€’ **Premium Anodized Aluminum:** Robust all-metal construction ensures longevity and resistance to wear. - β€’ **Compact 9mm Optical Length:** Optimized length for maintaining perfect focus and image clarity. - β€’ **Seamless Thread Conversion:** Effortlessly connect M42x0.75 male threaded accessories with precision. - β€’ **Essential for Advanced Setups:** Crucial adapter for integrating double helical and R&P focusers flawlessly. ## Overview The Astromania M42x0.75 Female to Female Thread Telescope Adapter is a high-quality, anodized aluminum accessory designed to convert M42x0.75 male threads into female threads. With a precise 9mm optical length and durable all-metal construction, it enables seamless integration of advanced telescope focusers and accessories, making it a must-have for serious astronomy enthusiasts. ## Description desertcart.com : Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm | Aluminum Telescope Accessories, Slove Focusing Issues, For Astronomy Telescope, Convert Thread In Planetary Moon Observation : Electronics Review: It's a ring with threads on either side. - It excels at its job of being a ring with threads on either side. Review: Works well with ZWO cameras - Solid, well made and exactly 9mm as measured by my digital caliper. Works great as a way to shorten the backfocus of ZWO cameras. This is 9mm instead of the included 11mm. ## Features - M42X0.75 female thread on both sides - This is a very high quality anodized aluminum adapter; Optical Length: 9mm - Converts an M42X0.75 male thread to a M42X0.75 female thread - All metal construction and anodizing aluminium process; durable for long time use - Makes it possible to attach M42x0.75 male thread and M42x0.75 male thread accessories; if there is M42X0.75 male thread on R and P focuser; play very important part in connecting double helical focuser and R and P focuser it ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01NCS8RW6 | | Additional Features | Thread Conversion Capability | | Best Sellers Rank | #67 in Telescope Photo Adapters | | Brand | Astromania | | Compatible Devices | M42X0.75 Male Thread Accessories | | Customer Reviews | 4.7 out of 5 stars 56 Reviews | | Eye Piece Lens Description | Helical | | Finderscope | Reflex | | Focal Length Description | 9 millimeters | | Focus Type | Manual Focus | | Item Highlight | Aluminum Telescope Accessories, Slove Focusing Issues, For Astronomy Telescope, Convert Thread In Planetary Moon Observation | | Item Weight | 11.34 g | | Manufacturer | Astromania | | Manufacturer Part Number | SKU_AM_M42FTM42F9 | | Model Name | M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter | | Model Number | SKU_AM_M42FTM42F9 | | Number of Items | 1 | | Power Source | Manual operation | | Unit Count | 1 Count | ## Product Details - **Brand:** Astromania - **Compatible Devices:** M42X0.75 Male Thread Accessories - **Eye Piece Lens Description:** Helical - **Finderscope:** Reflex - **Focal Length Description:** 9 millimeters - **Focus Type:** Manual Focus - **Item Weight:** 11.34 g - **Model Name:** M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - **Power Source:** Manual operation ## Images ![Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm - Image 1](https://m.media-amazon.com/images/I/71eq3tx8u8L.jpg) ![Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm - Image 2](https://m.media-amazon.com/images/I/81OGjyITsdL.jpg) ![Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm - Image 3](https://m.media-amazon.com/images/I/71DrPHBd6LL.jpg) ![Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm - Image 4](https://m.media-amazon.com/images/I/71Hn6TPELDL.jpg) ![Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm - Image 5](https://m.media-amazon.com/images/I/81hHgC3zsjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It's a ring with threads on either side. *by C***E on July 11, 2024* It excels at its job of being a ring with threads on either side. ### ⭐⭐⭐⭐⭐ Works well with ZWO cameras *by R***O on January 22, 2020* Solid, well made and exactly 9mm as measured by my digital caliper. Works great as a way to shorten the backfocus of ZWO cameras. This is 9mm instead of the included 11mm. ### ⭐⭐⭐⭐⭐ Nice adapter *by S***E on March 4, 2021* Just what I needed for telescope and camera setup. Good value. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/45644094-astromania-m42x0-75-female-to-m42x0-75-female-thread-telescope](https://www.desertcart.jp/products/45644094-astromania-m42x0-75-female-to-m42x0-75-female-thread-telescope) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-27*