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Nikon DK-20C Correction Eyepiece for Rectangular-Style Viewfinder (-2.0)

BH #NIDM2N80 • MFR #2945
 13 reviews
Nikon DK-20C Correction Eyepiece for Rectangular-Style Viewfinder (-2.0)
Key Features
  • Fits Select Nikon SLR and DSLR Cameras
The DK-20C -2.0 Correction Eyepiece for Rectangular-Style Viewfinder from Nikon allows you to optimize your SLR/DSLR viewfinder's sharpness in conjunction with your individual eyesight. Nikon SLR/DSLR 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/DSLR 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.
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$14.95
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Nikon DK-20C Overview

The DK-20C -2.0 Correction Eyepiece for Rectangular-Style Viewfinder from Nikon allows you to optimize your SLR/DSLR viewfinder's sharpness in conjunction with your individual eyesight. Nikon SLR/DSLR 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/DSLR 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.

Compatibility
D750, D610, D600, D5300, D5200, D5100, D5000, D7100, D7000, D3300, D3200, D3100, D3000, D300, D300S, D200, D100, D90, D80, D70, D60, D50, D40, N80, N75, N70, N65, N60, N55, N50, Pronea, N2-4-5-6000 Series & FM/FE10 Cameras
UPC: 018208029457

Nikon DK-20C Specs

Packaging Info
Package Weight
0.05 lb
Box Dimensions (LxWxH)
4.5 x 2.8 x 0.02"

Nikon DK-20C Reviews

Correct My Eyesight.

By Brian
Rated 5 out of 5
Date: 2022-07-09

I have had to where glasses for 30 years. With the eyepiece diopter lens I can use the camera and not have to wear my glasses. Dose an excellent job.

Great price!!!

By victor n.
Rated 5 out of 5
Date: 2014-03-12

Great price! Fits my FM10 and D90 perfectly

Works great but not Nikon perfect

By Photo Eyes
Rated 4 out of 5
Date: 2014-03-05

It performs its function well, image clarity is excellent, but it does have a few issues one would expect to be absent from any kind of Nikon optics.First, the -2 diopter value seems is questionable, a little math puts it more at a -1 value than a -2. But since other factors could be just as questionable, the actual diopter value would have to be verified by calibrated equipment.Second, the plastic frame quality lacks the Nikon feel, instead it feels cheap in mechanical strength and surface texture.The biggest issue though, is that the rubber eyecup it replaced does not fit over this viewfinder. It goes in 2/3's of the way and no more by any means.The last issue was found instantly after pulling the viewfinder out of it's small plastic bag. A giant thumbprint covering nearly the whole lens was found on one side of the lens surface.In the end, after a few workarounds, this viewfinder worked as expected. The workarounds were:1) Set the camera's diopter adjustment to the min. of -1.7, instead of -0.7 as originally expected.2) Ignore the cheap plastic frame3) Don't use a rubber eyecup over it4) Clean the lens well before installationIt's clear & eyeglass-free camera viewfinding afterwards, as expected.

just the thing I needed

By Debasis
Rated 5 out of 5
Date: 2014-01-05

I did not even know that these existed for Nikon DSLRs, until I saw them accidentally at Nikon's website. I just thought that those minor dioptre adjustments in the camera were inadequate, and probably I have to wear contacts to use my camera properly!What a difference! I can now read the display at the bottom of the view-finder clearly without my glasses! I can view the display clearly, and actually use the manual focussing accurately!Two words of caution: (1) fit this slowly, firmly and properly the first time before putting in the rubber cup. Because they are so tight, you cannot make further adjustments later on. Remove the rubber cup by sliding up, Clean the channels on two sides, the glass on the camera-body before putting it on. Finally clean the rubber eyepiece, to be put on last. (2) Have your eyes checked at an optometrist recently, decide which eye you will be always using, then buy one (+3,+2,+1,-1,-2,-3) with the closest power. If your eyes have higher power, you might fit two, one after the other - it works! Finally, if you have high cylindrical, then contacts might be the only option for you.They are cheaper at B&H than at Nikon's website!

great product

By OTH
Rated 5 out of 5
Date: 2013-11-23

I used it with my Nikon D5100 and finally I can see all the settings clearly on my eye viewer..

Helps My Aging Eye

By Herman33
Rated 5 out of 5
Date: 2013-10-01

I use this product with my Cosina C1s and Voigtlander VSL43 single lens reflex cameras. (Viewfinder accessories that fit the Nikon FM10 camera also fit these cameras.) Due to my age (80 years) focusing a SLR camera is becoming increasingly difficult. This -2 diopter is just what I needed to help with that.

Worked perfectly

By Phil
Rated 5 out of 5
Date: 2017-01-22

Exactly the correction I needed to do photography without wearing my glasses.

Good quality

By Loren
Rated 5 out of 5
Date: 2016-12-04

Gets the job done.

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question

Following cataract surgery I am slightly near sighted in the eye is use for photography. I have a Nikon 5200 which has a small diopter adjustment wheel on the side of the eye piece but it doesn't go quite far enough. Should I get a plus 2 or a minus 2 correction eyepiece?
Asked by: Gilman
Depends on if you're near-sighted (you'll need minus) or far-sighted (you'll need plus). What I did in order to determine the strength I needed was go to an optometrist and tell them exactly what you need the prescription for. Tell them to test for one meter distance. It is going to be different than a prescription for regular lenses such as for driving or watching a movie. For instance, I have a different prescription for driving than for working at my desk on a computer. Get yourself tested for one meter distance. My prescription turned out to be minus 2 point something but I couldn't get one that specific so I rounded up to minus three and it's perfect. They don't cost that much, very well worth the expense. Also be sure it's designed to be compatible with your specific camera.
Answered by: Shari A.
Date published: 2018-08-28
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