William Optics 48mm Wide T-Ring for Canon SLR/DSLR EOS Cameras - Black

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- T-Ring to convert your Canon camera EF/EF-S mount to a standard 48mm thread for attachment to various astronomy accessories
- Fits all Canon EOS SLR/DSLR cameras with EF/EF-S lens mounts
- Not for use with Canon EOS-R or EOS-M mount mirrorless cameras
- M48 female thread has a diameter of 48mm and a thread pitch of 0.75mm
- Compatible with wide format 48mm T-threaded accessories only
- NOT for use with the smaller, more common standard 42mm T-threaded adapters and accessories which have an M42x0.75 thread (42mm diameter x 0.75mm pitch)
- Optical path length: 11mm
- Perfect for use with M48-threaded corrective telescope optics (correctors and flatteners) that have a back focus requirement of 55mm. The Canon EF/EF-S camera's FFD (flange focal distance) of 44mm plus this T-ring's optical path length of 11mm will get you to 55mm without the need to any additional adapters.
- High-precision CNC-machined aluminum and black anodized
- Weighs 45g / 1.59oz
Other Information
- Country of Manufacture: Taiwan
- T-Ring to convert your Canon camera EF/EF-S mount to a standard 48mm thread for attachment to various astronomy accessories
- Fits all Canon EOS SLR/DSLR cameras with EF/EF-S lens mounts
- Not for use with Canon EOS-R or EOS-M mount mirrorless cameras
- M48 female thread has a diameter of 48mm and a thread pitch of 0.75mm
- Compatible with wide format 48mm T-threaded accessories only
- NOT for use with the smaller, more common standard 42mm T-threaded adapters and accessories which have an M42x0.75 thread (42mm diameter x 0.75mm pitch)
- Optical path length: 11mm
- Perfect for use with M48-threaded corrective telescope optics (correctors and flatteners) that have a back focus requirement of 55mm. The Canon EF/EF-S camera's FFD (flange focal distance) of 44mm plus this T-ring's optical path length of 11mm will get you to 55mm without the need to any additional adapters.
- High-precision CNC-machined aluminum and black anodized
- Weighs 45g / 1.59oz
- T-Ring to convert your Canon camera EF/EF-S mount to a standard 48mm thread for attachment to various astronomy accessories
- Fits all Canon EOS SLR/DSLR cameras with EF/EF-S lens mounts
- Not for use with Canon EOS-R or EOS-M mount mirrorless cameras
- M48 female thread has a diameter of 48mm and a thread pitch of 0.75mm
- Compatible with wide format 48mm T-threaded accessories only
- NOT for use with the smaller, more common standard 42mm T-threaded adapters and accessories which have an M42x0.75 thread (42mm diameter x 0.75mm pitch)
- Optical path length: 11mm
- Perfect for use with M48-threaded corrective telescope optics (correctors and flatteners) that have a back focus requirement of 55mm. The Canon EF/EF-S camera's FFD (flange focal distance) of 44mm plus this T-ring's optical path length of 11mm will get you to 55mm without the need to any additional adapters.
- High-precision CNC-machined aluminum and black anodized
- Weighs 45g / 1.59oz
Other Information
- Country of Manufacture: Taiwan

William Optics 48mm Wide T-Ring for Canon SLR/DSLR EOS Cameras - Black
