Quote Originally Posted by Andrew K View Post
you can mount the slides in standard mounts, as the 2 images are shot side by side on a standard 35mm frame. As for a viewer you need a old Stlitz or Pentax slide viewer that views standard 35mm slides. You could also buy a Russian stereo viewer kit - these come with a attachment that lets you use the beamsplitter as a viewer - I've used one with good results before - http://www.ebay.com.au/itm/STEREO-Co...item5af2b9cc99



PS - I have no connection to the seller- its just the first listing I saw for one..
Interesting item. However, I am not familiar with helios-44. Upon googling I found the thread size is 58mm but not sure if the item is exactly 58mm. And the viewer description is said capable of 50mm X 50mm. Such an odd size.