Skip to content
Price match 30-day returns* Talk to an astronomer before you buy
Starizona Canon RF Wide T-Ring
Starizona Canon RF Wide T-Ring
Starizona Canon RF Wide T-Ring

Starizona Canon RF Wide T-Ring

by Starizona
SKU STZ-TRING-RF-10
CA$70.00 - CA$70.00
CA$70.00
CA$70.00 - CA$70.00
CA$70.00
Price Match Policy!
  • Adapts Canon RF-mount mirrorless cameras to telescopes
  • Wide M48 (2-inch filter) thread connection
  • Ultra-thin 10mm "T-minus" profile
  • Ideal for short backfocus imaging trains
Backordered
Request Stock Alert
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Warranty

  • Canon RF Wide T-Ring

    The Canon RF Wide T-Ring adapts Canon RF-mount mirrorless cameras to your telescope using a wide M48 female thread, bypassing the narrower M42 "T-thread" to minimize vignetting. Its "T-minus" design is only 10mm thick, providing critical space savings for modern, complex imaging trains.

    A 10mm Profile for Short Backfocus Systems

    This T-ring's key feature is its slim 10mm optical thickness. This minimal profile is essential when building imaging trains with very little available backfocus, or when you need to insert additional accessories like a filter drawer. By consuming less of the precious backfocus distance, this adapter allows for the correct spacing of flatteners, reducers, and off-axis guiders, making it a crucial component for achieving a sharp, flat field with Canon RF cameras.

  • What is the telescope-side thread on the Canon RF Wide T-Ring?

    The Canon RF Wide T-Ring uses a wide M48 thread. This is larger than the standard M42 T-thread and is often preferred for full-frame and large-sensor cameras to prevent vignetting.

    How thick is the Canon RF Wide T-Ring and why is that important?

    The ring is only 10mm thick. This "T-minus" style is significantly thinner than standard T-rings, which is critical for imagers working with short backfocus requirements or needing to fit accessories like a filter slider into the optical path.

    Which cameras will the Canon RF Wide T-Ring fit?

    This T-ring is specifically designed to fit Canon RF-mount mirrorless cameras. It will not fit Canon EF or EF-S DSLR cameras.

  • Starizona Warranty