Highway 61
Revisited
Out of curiousity, do any of the older Nikon F Viewfinder accessories work on the S3?
Some older Plain Prisms had the square eyepiece, and I own a eyepiece magnifier attachment leftover from my days using/collecting NKJ F's, that would be great if it would carry over.
Are there any eyecups available? Or any that have been found to fit (possibly from another camera system?
I've also been looking into silly add on grips, nothing to be found.
To all of your three questions : no.
For making an eye cup, you'll have to play with some rubber rings from your plumbing store, which will have to be customized if you want to install them on the S3 rectangular eyepiece (this will be easier on the S2 round eyepiece).
There is no need of a grip to perfectly hold a Nikon RF camera.