The Nikon DK-17C +1.0 Correction Eyepiece is also known as a diopter - it functions in the same way a contact lens is used on your eye. Correction lenses provide near or far-sighted users a clear viewfinder image without the use of eyeglasses. It allows you to optimize your SLR viewfinder's sharpness in conjunction with your individual eyesight.
It is highly recommended to consult an eye professional to determine what strength diopter is correct for you. However, you can try different reading eyeglasses at your local pharmacy to get a "ballpark idea" of which one is right for you.
Please click here for a Compatibility Chart .
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Comments about Nikon DK-17C +1.0 Correction Eyepiece (Diopter):
I am in my mid-40's and have the same issue we all start getting....the eyes won't focus as quickly as we'd like. This really helps, especially for precision focusing such as macro work. I recommend this for anyone with the same issue.
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