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Black rubber eyecup with asymmetrical shape and 360-degree rotating mount for EOS R1

Canon

Canon ER-i Eyecup for EOS R1 with 360-degree rotation

SKU CH-0F3H-5G8RX

Eyecup for the EOS R1 with 360-degree rotation and 90-degree click stops

  • Reduced eye strain during long shoots thanks to ergonomic, generously cushioned design
  • Clearer viewfinder image by blocking stray light and reflections with precise fit
  • Comfortable for both right- and left-eye shooters due to asymmetrical shape
  • Secure 360-degree rotation with 90-degree click stops for horizontal or vertical use
  • Protects viewfinder from daily wear with durable, high-quality construction

Enhanced comfort for EOS R1 shooters

The Canon ER-i Eyecup attaches to the EOS R1 Mirrorless Camera to reduce eye strain during long sessions. Its generous cushioning suits eyeglass wearers and the ergonomic shape supports both right and left eye use. The secure fit blocks stray light for a clearer viewfinder image.

Upgrade from the stock eyecup when glare

The standard eyecup can leak light and feel tight after hours of shooting. Switching to the ER-i is worth it when you need all-day comfort and a darker viewfinder for critical focus. The asymmetrical design solves the one-size-fits-none problem of the original part.

Tool-free snap-on with indexed rotation

The eyecup clicks onto the viewfinder and rotates 360 degrees with positive detents every 90 degrees. Alignment is intuitive — just turn until it locks for horizontal or vertical orientation. The only common issue is forgetting to seat it fully, which can let light creep in at the edges.

Highlights

  • Reduced eye strain during long shoots thanks to ergonomic, generously cushioned design
  • Clearer viewfinder image by blocking stray light and reflections with precise fit
  • Comfortable for both right- and left-eye shooters due to asymmetrical shape
  • Secure 360-degree rotation with 90-degree click stops for horizontal or vertical use
  • Protects viewfinder from daily wear with durable, high-quality construction

Specifications

No published specifications for this item yet.

Questions about this item

How does the ER-i eyecup attach to the EOS R1 viewfinder?

The eyecup slides onto the viewfinder eyepiece for a secure, precise fit that prevents light leakage.

What is the correct orientation when installing the asymmetrical eyecup?

Align the deeper cushion side with your shooting eye; the 360-degree rotation clicks at every 90-degree interval to lock horizontal or vertical positions.

How should the eyecup be cleaned or replaced if the cushion wears out?

Wipe the eyecup with a soft, dry cloth; if the cushion degrades, remove the old eyecup and slide on a new Canon ER-i unit.

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