- Description
The new Sharpstar RC308 kit includes a 3inch R&P focuser and a 2.5inch 0.8x RC reducer, supports full-frame!
Suitable for RC systems above 10-inch diameter, can be used for GSO RC perfectly!
Specifications:
- Suitable models: 200mm-600mm RC system primary lenses
- Focal ratio range: F6-F9
- Defocus magnification: 0.8x
- Image circle: full frame 44mm
- Lenses: 3 pieces
- Outer diameter: 74mm (excluding outer ring)
- Backfocus: 55mm (M48 thread end to focal plane)
- Total length: 46.5mm
- Coating: fully-multi-coating
- Weight: 0.4kg
- Telescope connection: M117x1 female thread
Specifications
Video
You may also like
Recently viewed
Recent Blog Posts
View all
Your Guide Graph Is Lying to You
You drove ninety minutes to dark sky, PHD2 held 0.4 arcseconds all night, and half your subs still have eggs for stars. Here are the three things your
Read More
Read More
D-Size vs V-Size: A Complete Guide to Telescope Dovetail Systems
What's the difference between D-size and V-size telescope dovetails? Here's everything you need to know.
Read More
Read More
What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained
What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained
Back focus is one of those astrophotography terms that c
Read More
Read More