The TLb was marketed overseas in September 1974 as the cheaper version of the Ftb. It was later sold in Japan in April 1976. The basic specifications were the same as the Canon TX except for the hot shoe which was omitted. X-sync was possible only with the PC terminal.
| Shutter | Two-axis, horizontal-travel focal-plane shutter with cloth curtains. X, B, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500 sec. No self-timer. |
| Viewfinder | Fixed eye-level pentaprism. Microprism rangefinder at center of fresnel matte screen. Metering match needle, stopped-down metering needle, and incorrect exposure warnings provided. |
| - Magnification | 0.85x |
| - Coverage | 94% |
| Power | One 1.35 V HD mercury cell. |
| Size | 144 x 93 x 43 mm |
| Weight | 680 gr |