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Nikon -4 Diopter for FM3A, FM2, FM, FE2, FE & FA

B&H # NIDM4FM2 MFR # 2937
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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 .

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Nikon-4 Diopter for FM2/FE2/FA
 
5.0

(based on 1 review)

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Reviewed by 1 customer

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5.0

Good assistance

By Alvera

from Rep. of Georgia, Caucasus

Verified Reviewer

Pros

  • Solid

Cons

    Best Uses

    • landscape
    • Studio

    Comments about Nikon -4 Diopter for FM2/FE2/FA:

    The quality is out of question.
    But, before baying it, you need to decide what is more uncomfortable for you – vie to the viewfinder through the glasses, or take out your glasses each time you are making a shoot. Besides, you need remove diopter each time, you are asking somebody to make picture of you. Personally, necessity to change angel of vie to see exposure meter and aperture values and, thus, loosing concentration on the subject of picture, was very irritating for me. So, I'm using it with FM3A, and happier now.

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