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Small rectangular eyepiece diopter with rubber coating

Nikon Inc

Nikon DK-20C +0.5 Diopter camera accessory

SKU CH-9FDC-AB7S7

A +0.5 diopter correction eyepiece that sharpens viewfinder focus for compatible Nikon SLR cameras

  • +0.5 diopter sharpens viewfinder for farsighted users
  • fits many Nikon digital SLR and film bodies
  • rubber coating protects eyeglasses from scratches
  • Nikon build quality ensures lasting reliability
  • corrects base minus-one value for personalised focus

Nikon DK-20C +0.5 Diopter for SLR cameras

The Nikon DK-20C is a +0.5 diopter correction eyepiece accessory designed for Nikon digital SLR and film cameras. It attaches to the viewfinder to sharpen the image for photographers with slight farsightedness. The accessory combines with the camera's base diopter value to deliver a customised focus correction. It is intended for users who find the standard viewfinder image slightly soft.

Who benefits and who should look elsewhere

This diopter suits Nikon SLR owners who need a modest positive correction to achieve critical focus through the optical viewfinder. It also helps spectacle wearers by providing a rubber coating that reduces lens scratching. Photographers requiring a stronger prescription, a negative diopter value, or a neutral correction will not be served by this specific +0.5 model and need a different diopter strength.

What the accessory changes

The DK-20C replaces the standard dust-cover eyepiece with a corrective optical element that adds +0.5 diopter to the camera's native setting. This adjustment brings the viewfinder image into sharp relief for the user's eyesight, enabling more precise manual focus and composition. The rubber eyecup improves comfort during extended shooting sessions and protects glasses from abrasion. The accessory does not alter any camera function beyond viewfinder optics.

How it compares

Measured against everything we stock in Camera Extras & Accessory Packs, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 69% of the 2,266 comparable items (median $39.99).

Specifications

No published specifications for this item yet.

Questions about this item

Which Nikon SLR bodies accept the DK-20C +0.5 Diopter eyepiece?

The DK-20C +0.5 Diopter fits many Nikon digital SLR and film SLR models, both autofocus and manual-focus, that use the standard DK-20 eyepiece mount.

How does the +0.5 correction combine with the camera's built-in −1 base diopter?

The camera's native −1 base value adds to the +0.5 correction, giving a final viewfinder diopter of −0.5 for the photographer.

How can I confirm the DK-20C +0.5 Diopter is delivering the correct correction after fitting it?

Look through the viewfinder at a high-contrast subject; the focus screen markings and image detail should appear sharp without eye strain when the diopter is correctly matched to your vision.

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