This Right-Angle Viewing Attachment can be attached to the finder of Nikon SLR cameras. With this attachment, the viewfinder image is viewed at right angles (via the built-in roof prism) to the camera's optical axis - a feature that is very convenient when shooting from low (or high) viewpoints, or when normal finder viewing is proving difficult, as can be the case in close-up work or photomicrography.
The DK-17A minimizes eyepiece fogging in low temperatures and/or high humidity conditions.
The DK-17M increases viewfinder magnification by approximately 1.2x.
The DK-19 minimizes the amount of stray light that enters the viewfinder and enables more comfortable viewing.
The DK-21 minimizes the amount of stray light that enters the viewfinder and enables more comfortable viewing.
The DK-21M increases viewfinder magnification by approximately 1.17x.
Eyepiece shield made from comfortable soft rubber, minimizes stray light.