|The left window is for focusing, while the right is for composing|
The matched 35mm lenses provide a slightly wide field of view, and are pretty sharp! Apertures range from f/3.5 to f/22. Each lens has a leaf shutter, with speeds ranging from 1/2 to 1/200. 1/200 doesn't sound like much, but it's par for the course when it comes to stereo cameras. Most of the time you'll want as much depth of field as possible for your 3-D photos, so faster speeds aren't really necessary. Exposures with my particular camera aren't 100% matched (one negative always seems a little thinner than the other), but this is understandable for a 70-year-old camera, and it's easy enough to correct these slight differences in post. One extra feature that I love is the camera's ability to perform multiple exposures with a simple flick of a switch beneath the lenses. Multiple exposures in 3-D can look pretty trippy!
Unfortunately, the Revere Stereo 33 does not have a standard hot shoe, nor does it have a sync port for attaching a flash. My workaround is with a Vivitar 283 flash, which sets its flash output automatically based on your camera's aperture setting. I match the output level on the flash with the aperture setting on the camera (usually f/16 so not too much ambient light gets in), start a bulb exposure, fire the flash manually using the test button on the back, then finish the bulb exposure. It's a pain for sure, but it works.
But yeah, overall I love the Revere Stereo 33. I've yet to find a 35mm stereo camera that is easier to use, or one that has more precise focusing. I plan on doing a lot more stereo work with this camera over the summer. Below are some stereo pairs that I made documenting my brother's big bachelor weekend. Unfortunately it's very difficult to see the 3-D effect without a viewer, but if you stare past the center of the pair, you can sometimes trick your eyes into seeing a 3-D image. It's also somewhat effective if you flip rapidly between the left and right eye images using a GIF, but in my experience, this doesn't work with every stereo image. The film was bulk-loaded Ilford HP5+.