William Optics Guiding Scope 50mm f/4.0

The William Optics Guiding Scope 50mm f/4.0 is a compact 50mm doublet guide scope designed for astrophotographers who need reliable autoguiding for long-exposure imaging. With a 200mm focal length, fast f/4.0 focal ratio, and a broad 5.7-degree field of view, it helps guide cameras locate suitable guide stars and improve tracking accuracy.

Who Is This Product Best For?

This 50mm guide scope is best for beginner to intermediate astrophotographers using small to medium imaging telescopes who want a simple, reliable guide scope for deep-sky imaging. It is a good fit for customers who need a compact guider with more light gathering than a 32mm mini guide scope.

Why Choose This Product?

• 50mm doublet optics: Provides a bright guide image for autoguiding.
• 200mm focal length: Useful guiding scale for many portable imaging systems.
• Fast f/4.0 focal ratio: Helps guide cameras detect guide stars efficiently.
• 1.25-inch RotoLock adapter: Provides a secure and easy connection for guide cameras.
• Lightweight design: Adds only about 0.42 kg to the telescope setup.

Recommended Uses

• Autoguiding for long-exposure astrophotography
• Small and medium refractor imaging systems
• Portable deep-sky imaging rigs
• Tracking improvement for equatorial mounts

Compatibility and Accessory Notes

The 50mm guiding scope uses a 1.25-inch RotoLock adapter for guide camera connection. It is available in black and Space Grey and is designed to mount parallel to the main telescope using suitable guide-scope mounting hardware.

Important Limitations

This is a guiding accessory, not a primary imaging telescope. Customers should confirm their guide camera, mounting bracket, and telescope setup before purchase.

Frequently Asked Questions

Is this guide scope good for beginners?

Yes. It is a straightforward option for beginners adding autoguiding to a deep-sky imaging setup.

What type of camera works with it?

It is designed for common 1.25-inch astronomy guide cameras.

Is this better than a 32mm guide scope?

It provides more aperture and a longer focal length, making it better suited to somewhat larger imaging systems.

Our Recommendation

The William Optics Guiding Scope 50mm f/4.0 is a practical choice for astrophotographers who want a simple, compact 50mm guider with secure guide-camera connection. Choose it for small to medium imaging systems where reliable guide-star acquisition is important.