Nikon -3 Diopter for FM2/FE2/FA

Nikon -3 Diopter for FM3A, FM2, FM, FE2, FE & FA

Nikon -3 Diopter for FM3A, FM2, FM, FE2, FE & FA

B&H # NIDM3FM2 MFR # 2936
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  • 1Description

Optional Nikon eyepiece diopters allow you to optimize your SLR viewfinder's sharpness in conjunction with your individual eyesight. Nikon SLR cameras (without built-in adjustable eyepiece correction) have a base diopter value of minus one. Minus one is considered the optimum starting point for the majority of SLR users with normal vision. The combination of the camera's viewfinder components and a clear (standard) eyepiece form a virtual image of a subject on the camera's focusing screen that is the approximate equivalent of a viewing distance of one meter.

Each Nikon eyepiece diopter incorporates a numerical value, represented by a minus value (nearsighted) or a plus value (farsighted) number, enabling you to select the appropriate diopter for your vision and your camera model.

The eyepiece's diopter value is, when combined with the viewfinders minus one value, the end-result value. No combination of the camera's base value of minus one and a given accessory diopter's value is required to arrive at the final desired value. In other words, if you require a diopter of plus 3, simply add a plus 3 diopter to your camera.

Please click here for a Compatibility Chart


UPC: 018208029365
Table of Contents
  • 1Description
Packaging Info
Package Weight 0.01 lb
Box Dimensions (LxWxH) 2.0 x 2.0 x 0.7"
-3 Diopter for FM2/FE2/FA is rated 4.7 out of 5 by 3.
Rated 4 out of 5 by from Works Well! My left eye vision is -2.75 diopter...this -3.0 diopter works well on my Nikon FE. Useful if you remove your prescription eyeglasses due to fogging or simplyly wanting to see the entire frame for precise framing and focus. Great with K type screen. Such being the case, it is great for 24 mm to 135mm focal length lenses. Lenses greater than 135mm would give the black-out half-circle which makes focus slightly difficult. Not so ideal with the E screen. As such I give it 4 stars.
Date published: 2009-08-26
Rated 5 out of 5 by from It does the job! It fits well, the optical quality is excellent, easy to attach without instructions. The DK-3 rubber eyecup will also fit on top of this if you already own one. I use this diopter with the K-type screen, I have not tried it with other screens.I originally bought the -2 diopter and it wasn't quite strong enough...
Date published: 2010-10-03
Rated 5 out of 5 by from No more glasses Eliminates the need for wearing glasses when taking photographs; a whole lot simpler.
Date published: 2012-01-09
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