Holmes Stereoscope by redbeardmathpirate

Last crawled date: 3 years ago

Enjoy your collection of stereoviews with this stereoscope that has interchangeable holders for several sizes of stereocards!
There are four holders available.
7in (18cm): Standard size, holds most stereocards, like Keystone, Underwood, Ingersoll, etc. It can even accommodate taller cards like the Edinburgh Anatomy sets.
5.75in (15cm): This size is for Whiting's Sculptoscope views.
5in (13cm): This size works for Keystone Junior cards as well as for the recent Black Dog & Leventhal books. (I think Raumbild views might be this size, but I don't have any to confirm.)
Cavanders: This one fits 1.5" wide image pairs, like the Cavander's "Peeps Into Many Lands" series.
And yes! This viewer can even handle the curve of a typical Keystone View!
To use the viewer, you will need to print EyePiece, StereoscopeBar, and one of the card holders. Slide the big blocky end of the bar into the notch on the eyepiece, then slide the card holder onto the bar. The handle is optional, but makes the viewer easier to hold. BarCatch is a small piece that snaps into a hold at the end of the bar to prevent the card holder from sliding off the end of the bar.
I printed most of my parts in PETG. The pieces fit together somewhat tightly, so any warping or bumps might make it tough to use.
You will need some lenses to fully enjoy the viewer. I used a pair of 37mm +4 macro lenses, which you should be able to get from any place that sells photographic equipment.
Additionally, for the optional tripod stand, you'll need a 1/4-20 lock nut or tee or something similar. (Or you could just glue a standard 1/4-20 hex nut on the bottom.)