SVBONY SV238 Off-Axis Guider
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The SVBONY SV238 is a compact off-axis guider designed for astrophotographers who want precise autoguiding without the added weight and alignment challenges of a separate guide scope. It features a large 8x14mm prism that captures bright guide stars even in dense fields, and its CNC-machined aluminum body ensures durability and minimal flexure. With included M54 and M48 adapters plus compatibility with filter drawers and filter wheels, it offers versatile integration into a wide range of imaging setups.
Key Features & Specs
| Prism Size | Large 8x14mm prism for improved guide star acquisition across a wide field |
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| Construction | CNC-machined aluminum body for rigidity, low flexure, and long-term durability |
| Adapters Included | M54 and M48 threaded adapters included for broad telescope and camera compatibility |
| Filter Compatibility | Designed to work with filter drawers and filter wheels for integrated narrowband or broadband imaging |
| Camera Port | Standard guide camera port accommodates most popular guide cameras via 1.25-inch barrel |
| Weight | Lightweight and compact form factor to minimize load on the focuser and mount |
| Use Case | Eliminates differential flexure associated with piggyback guide scopes by sharing the main optical train |
Best for: Intermediate to advanced astrophotographers using refractors or telescopes with M48 or M54 threads who want reliable, low-flexure autoguiding integrated directly into their imaging train.