Starizona M48-to-2" Nosepiece Adapter
- Connects M48-Threaded Accessories to 2" Focusers
- Male M48 Threads on Accessory Side
- Male 2" Nosepiece on Telescope Side
- Barrel is Threaded for Standard 48mm (2") Filters
Check which filter and adapter sizes clear the sensor with the Starizona M48-to-2" Nosepiece Adapter, and how much light the corners lose.
Check vignettingThe M48-to-2" Nosepiece Adapter provides a simple, secure way to connect any accessory with standard M48 threads directly into a 2" focuser drawtube. The 2" barrel also features internal threads, allowing you to mount a standard 48mm (2") filter within the adapter itself.
This adapter serves a critical dual purpose for astrophotography. Its primary function is to bridge the gap between accessories that use the common M48 x 0.75 "camera" thread and telescopes that have a standard 2" focuser. Simply thread your M48 accessory onto the adapter's male threads, and the entire assembly can then be inserted and secured in your focuser like a 2" eyepiece.
As an added benefit, the male 2" nosepiece is threaded to accept standard 48mm filters. This lets you place a light pollution, narrowband, or color filter into the light path without needing a separate filter wheel or drawer—a crucial capability for compact imaging setups.
The adapter has male M48 threads on one side for attaching accessories like cameras or field flatteners. The other side is a male 2" barrel (nosepiece) designed to slide into a standard 2" telescope focuser.
Yes. The 2" barrel of the adapter is threaded to accept standard 48mm (2") filters. This allows you to place a filter in the light path between the telescope and your M48-threaded accessory.
If your field flattener terminates in M48 threads, you would thread it directly onto the adapter. The entire assembly can then be inserted into your telescope's 2" focuser, allowing you to use the flattener in a standard drawtube.
| Accessory Connection | Male M48 Threads |
| Telescope Connection | 2" Nosepiece |
| Filter Compatibility | Threaded for 48mm (2") Filters |
M48-to-2" Nosepiece Adapter
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