SVBONY SV130 M48 to M42 Knurled Telescope Adapter

Product Overview

The SVBONY SV130 is an adapter ring that joins M48 and M42 accessories in a telescope or imaging train. Its knurled body gives a firm grip for threading it on and off by hand. It is a mechanical adapter only, made by SVBONY as an official accessory for SV-series equipment.

Who It's For

This is a good match if part of your train uses the M48 thread — common on 2″ correctors, filter wheels and drawers — and another part uses M42 (T2), as many cameras, T-rings and smaller accessories do.

Key Features & Design

• M48 to M42 connection: bridges the two most common thread standards in astrophotography.
• Knurled body: easy to grip when threading.
• SVBONY SV-series accessory: intended for SVBONY telescopes and astrophotography trains.

Recommended Uses

• Connecting an M42 camera or T-ring to an M48 corrector, flattener or filter holder.
• Adapting accessories between M48 and M42 parts of an SVBONY imaging train.

Compatibility and Accessory Notes

• Threads: M48 on one side, M42 on the other.
• Not published: SVBONY does not publish the thread gender on each side, the thread pitch or the adapter's optical length. Before building it into a train with a fixed backfocus, send us your setup and we will confirm the fit and spacing.

Good to Know Before You Order

• Mechanical adapter only: no optics.
• Spacing: its length adds to the optical path; SVBONY does not publish the figure.
• Weight: not published by SVBONY.

Frequently Asked Questions

Is it difficult to set up?

No. It threads between the M48 and M42 components by hand; the knurled body makes it easy to grip.

What is it used for?

Joining an M48-threaded accessory to an M42-threaded one, typically a 2″ corrector or filter holder to a camera or T-ring.

Will it change my backfocus?

Yes — any adapter adds its own length. SVBONY does not publish this one's length, so ask us and we will help you plan the spacing.

Bottom Line

In short: a knurled SVBONY adapter ring for joining M48 and M42 components in a telescope or imaging train.