The Nikon Eyepiece Correction Lens with 2.0D HP Diopter is designed specifically for Nikon film SLR cameras, such as the N90. Manufactured in Japan in 1993, this high-quality eyepiece lens corrects the viewfinder's focus to provide a more accurate and precise viewing experience for photographers. Compatible with Nikon cameras, this eyepiece is a reliable accessory for improving the functionality and performance of your camera setup.