Quick answer

For Canon EOS R3 shooters who want maximum stray-light rejection and eyeglass comfort, choose the ER-hE. If you prefer a standard symmetrical eyecup at a lower cost, stick with the ER-h.

Why the shape matters

The ER-hE uses an asymmetrical design that blocks light from the side where it most often sneaks in. This makes a real difference when you shoot in bright sun or with a bright background. The ER-h keeps the traditional symmetrical shape, which works fine but lets in more peripheral light.

Comfort for eyeglass wearers

Both eyecups are made from silicone rubber, but the ER-hE's rotating design lets you position the cutout exactly where your glasses sit. This reduces pressure on the frames and keeps the view clear. The ER-h does not offer this adjustment, so it may push glasses against your face.

Price difference

The ER-hE costs about USD 32.97, while the ER-h is roughly USD 12.57. The extra cost buys the asymmetrical shape and 360° rotation. If you rarely shoot in harsh light or don't wear glasses, the ER-h gives you the same basic eye relief at a lower price.

Trade-offs at a glance

  • Stray-light rejection: ER-hE blocks side light with its asymmetrical shape; ER-h does not. Choose ER-hE if you shoot in bright or backlit conditions.
  • Eyeglass compatibility: ER-hE rotates 360° to align with glasses; ER-h stays fixed. Choose ER-hE if you wear glasses while shooting.
  • Cost: ER-hE is about USD 20 more than ER-h. Choose ER-h if budget is your primary concern.

Product facts

  • Canon ER-hE Eyecup: The Canon ER-hE Eyecup has an asymmetrical shape that blocks stray light, and a 360° rotating design that suits various ways of handling the camera. The rotating asymmetrical design lets you block side light and adjust the eyecup to fit your shooting style and eyeglass frames.

    Canon ER-hE Eyecup

    Canon ER-hE Eyecup

  • Canon ER-h Eyecup: The Canon ER-h Eyecup is a standard symmetrical eyecup for the Canon EOS R3 mirrorless camera. The symmetrical shape is simpler and costs less, but it does not offer the same stray-light blocking or rotation for eyeglass wearers.

    Canon ER-h Eyecup

    Canon ER-h Eyecup

Which one fits you?

Best for

  • Shooters who need maximum stray-light blocking
  • Eyeglass wearers who want a comfortable, adjustable fit

Not ideal for

  • Budget-conscious users who don't need the extra features