Nikon +1 Diopter for FM2/FE2/FA

Nikon +1 Diopter for FM3A, FM2, FM, FE2, FE & FA

Nikon +1 Diopter for FM3A, FM2, FM, FE2, FE & FA

B&H # NIDP1FM2 MFR # 2932

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Nikon 2932 overview

  • 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: 018208029327
Table of Contents
  • 1Description

Nikon 2932 specs

Packaging Info
Package Weight 0.05 lb
Box Dimensions (LxWxH) 1.9 x 1.7 x 0.5"

Nikon 2932 reviews

+1 Diopter for FM2/FE2/FA is rated 4.9 out of 5 by 14.
Rated 5 out of 5 by from Viewfinder diopter for Fuji X-Pro 1 Unlike most other cameras with viewfinders, the Fuji X-Pro 1 does not come with a built in adjustable diopter. This is a problem for glasses wears, but is also a problem for anyone older than 45 due to senile presbyopia, even if they otherwise have perfect vision. There must be something about the 2-focal length viewfinder in the X-Pro 1 that does not allow for an adjustable diopter, as its sister camera has one (Fuji X100) and Fuji must know that the most likely consumer of this expensive retro camera will likely be in the age range affected by presbyopia. Like most folks, I know the presbyopia correction I need for reading glasses (+1.75 to +2.25), but I had no idea what I needed for the X-Pro 1. An internet search suggested that camera viewfinders have a built in diopter correction of -1.00, and so a user's reading prescription might not translate directly to the correct viewfinder adjustment. To make matters more complicated, the Fuji X-Pro 1 has a combination optical and electronic viewfinder, so any diopter correction has to allow for the short-distance EVF viewing while at the same time not blurring the long-distance OVF. It all sounded quite complicated, so I purchased both the +1 and +2 diopters by mail order. I found that both worked well for the EVF (+1 was very good for the EVF and the +2 was great for the EVF), but only the +1 was good for the OVF (+2 was blurry). Again, for me, the OVF is sharp without glasses, as I have only senile presbyopia and do not wear glasses for distance. My prescription is in the +2 range for reading, and the +1 Nikon diopter was the best compromise that allowed sharp viewing for both OVF and EVF. If I used only the EVF, I would install the +2 diopter, as this produced a WOW EVF image for me, but I wanted to preserve the use of the OVF, so I picked +1. The diopters are cheap enough, so I am keeping both, as they each has their own advantages, and who knows, I might need the +2 in a few years as my presbyopia worsens with age. I hope this helps prospective buyers.
Date published: 2012-06-20
Rated 5 out of 5 by from This also fits the Nikon F2 camera This lens works with your normal distance glasses use 1 diopter less than your reading script calls for. Example My near vision was a +2 so I just ordered a +1 for the camera and every thing is in good focus. If I had ordered the +2 it would be out of focus.
Date published: 2013-09-17
Rated 5 out of 5 by from Very useful If you need a +1 reading glass and your camera does not have diopter, you need it. Make sure the size is right. I use it for my Fuji X-Pro1 and it's perfect.
Date published: 2016-02-28
Rated 5 out of 5 by from No thanks to Fuji the X-Pro1... No thanks to Fuji the X-Pro1 does not have a diopter adjustment. The manual tells you to contact Cosina but in North America it's not a popular item. After searching a few blogs I found what I needed but e B A Y was no help for a +1.0 so I was glad to see that my friends @ B&H had stock and the service to Canada was very quick and it arrived in perfect condition.
Date published: 2012-07-02
Rated 5 out of 5 by from Relief for old eyes First, let me say that I bought this to use on a Nikkormat FT2, on which it fits perfectly. After reading reviews, one reviewer convinced me that this would work, as he noted his use of +2.0 or 2.5 diopters for his readers. Since I also use this correction, I went with +1 (+2 stronger than camera default of -1). Now I can see focus screen almost perfectly without glasses! It should be noted that the Nikon FM does not have a screw off eyepiece, but a permanently mounted eyepiece. I don't know about other FM's, FE's, etc.
Date published: 2018-09-01
Rated 5 out of 5 by from Just Perfect..Glad Still Available! Well, needed a a diopter (+1) for my Fuji XPRO1 in 19mm perfect and I am very happy! I understand Fuji is coming with there on series at a good price - kind of late...Any 19mm for your specific correction power will work on the Fuji. This Nikon series (NOS) are still available and they are great.
Date published: 2012-08-21
Rated 5 out of 5 by from Hens Teeth ............... I bought this lens and also a +2 D version ( to attempt future proofing ) for my Fuji X - Pro 1. Fuji no longer do these and it is impossible to find these new in New Zealand also Nikon lenses. Lucky for me that B.H. still had some Nikon FM2 lenses which are an exact fit. Saves me from having a NZ$3,500 paper weight. The +1D is just right at the moment and I have a +2D if my eyes change much in the future. Thanks B.H. Mike Cassidy
Date published: 2017-12-26
Rated 5 out of 5 by from A Necessary Aid This diopter is necessary in a camera that doesn't have autofocus or a viewfinder adjuster that matches your visual impairment. As I got older I found that I needed help from glasses for reading and distance. It's a pain to look through the viewfinder with glasses on - with this diopter everything is clear which makes focusing easier. I looked forward to receiving this and I have not been disapointed.
Date published: 2013-10-24
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