Stereo Butterfly Test by Stereo Optical
$460.00 Cdn.
Test book containing circles test (800 – 40 seconds of arc), animal test (400 – 100 seconds of arc) and butterfly (2,000 – 700 seconds of arc).
Stereo Optical Stereo Test books each includes one pair of testing goggles, a vinyl book to hold test plates and an instruction sheet with scoring information. Answer key is found on the back of each book.
