Perhaps the best known Minox offshoot is the Yashica Atoron. The Japanese company Yashica first developed its own subminiature 16mm camera -- the Y16 -- and clip-load cassette. When that attempt failed to sell, they made a camera -- the 16EE -- that used the more popular Minolta cassette (9.55mm film). That also failed to sell well. They then attempted a subminiature that used the Minox cassette called the Atoron in 1965. It has a fixed-focus 18mm Yashinon f/2.8 lens (closes down to f/16), Shutter speeds of 1/45 to 1/250 of a second plus B, and a Built-in selenium meter (The meter provides a match-needle). It also has a programmed-type of exposure system which sets the f-stop and shutter speed in tandem (you dial in the film speed/Then you point the camera at the subject/then you match the meter needle with a follower needle by turning a dial) this makes the exposure settings from 1/45 of a second at f/2.8 to 1/250 of a second at f16. There are no manual settings for the aperture or the shutter speed, but the dial is marked in EV units. You can use a hand-held meter which reads out in EV (older ones do), or simply remember that EV 12 is approximately the same as sunny-16. The meter face is marked with a "sunny day" symbol at EV12 (some models) on the Built-in sliding yellow UV filter used primarily for B&W film. Other slip-on filters (80A and ND4) were available that covered the lens and the meter. Other accessories, such as a case and an AG-1 bulb flash unit were available that attached to the left side screw-in socket (3/8 inch 32 threads per inch) flash contact that used one Ever ready B154 (Maxell W10) 15v battery. The shutter lock ring surrounds the shutter release button and has two positions. The Atoron came in two body styles; one was smooth, the other had a waffled surface. The camera used a film-advance pull tab that also loaded the shutter and advanced the frame in a single pull. While the Atoron lens had a variable aperture (which Minox models lacked), the Atoron lacked a focusing lens (which the Minox had). The Atoron depended on depth-of-field to get everything in focus. It can use and has settings for ASA 25, 50, 100, 200, and 400 film. The camera was also known as the "Revue Mini-star" from 1968 to 1970 and was sold by Foto-Quelle Company of Nuremberg, Germany. Much of this information above was acquired from Subclub.org.