Nikon F Eye Level Finder Glass

<p>The last piece of glass in mine is broken / missing. (The lens nearest the eye piece). Anyone have any ideas where to find one of these? It came this way years ago (c 1980's) at a yard sale for about $5.</p>

<p>I have a few old F's and many broken metered heads. It would be nice to be able to shoot w/o the bulk of the broken meters.<br /> The finder is useless w/o this too. It produces a sort of backwards binocular effect.</p>

<p>Does anyone have a damaged unusable finder? But with a good rear lens?</p>

<p>Amazingly someone has already emailed.(less than 30 minutes). And they have one to trade with a good glass. BTW, mine has the round eye piece. thanks.</p>

<p>You mean the little glass screw-in cover?<br /> If so, it's called the "Viewfinder Eyepiece" and there is a pdf that shows all the variants for all models if you search for "Nikon Viewfinder Eyepiece Application Reference".</p>

<p>In it, it says</p>

<blockquote>

<p>Standard eyepieces supplied with Nikon SLR cameras have no corrective value and are for dust protection only. Select eyepieces are supplied with a rubber coating designed to lessen scratching of a photographer’s<br />eyeglasses.<br />• Nikon SLR cameras (without built-in adjustable eyepiece correction) have a base diopter value of minus one.<br />This is why you won’t find an accessory Nikon eyepiece diopter valued at minus one. Minus one is considered<br />the optimum starting point for the majority of SLR users with normal vision. The combination of the camera’s<br />viewfinder components and a clear (standard) eyepiece form a virtual image of a subject on the camera’s<br />focusing screen that is the approximate equivalent of a viewing distance of one meter.<br />• Each Nikon eyepiece diopter incorporates a numerical value, represented by a minus value (nearsighted) or a<br />plus value (farsighted) number, enabling you to select the appropriate diopter for your vision and your camera<br />model. The eyepiece’s diopter value is, when combined with the viewfinder’s minus one value, the end-result value. No combination of the camera’s base value of minus one and a given accessory diopter’s<br />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.<br />• Neutral correction eyepieces do not replace the supplied standard eyepiece. The use of a neutral correction eyepiece will change the diopter value of the camera from minus one to zero.</p>

</blockquote>

<p>The vast majority of Nikon Fs are missing this little item since rubbing against clothing seems to loosen it and it falls off easily.</p>

<p>The original item in a plastic box is available fairly widely - the replacement number is 2923 for the Nikon F, other numbers are for correction diopters...<br /> I think I paid over $20US the last time I bought one.</p>

<p>http://www.photo.net/nikon-camera-forum/00ZLss also</p>

<p>Actually I was missing the piece after the screw in part.</p>

<p>While you're in there, if there's ANY rotting foam in contact with the prism, remove it, and replace it with neoprene foam. You don't want the acidic foam decay gunk ruining the silvering of the prism.</p>