Previous Canon cameras had been wholly in-house design projects. For the T90, Canon brought in German industrial designer See more

For the T90, Canon developed their most sophisticated light-metering system yet. Although it introduced no novel metering techniques, it assembled the majority of the metering techniques then developed into one easy-to-use system. First, it took the metering options … See more

The T90 was the first Canon camera to support through-the-lens (TTL) flash metering. This measures the actual light levels reaching the film by measuring reflected light off the film (OTF), shutting down the flash unit once the film is sufficiently exposed. … See more

A number of modifications to the T90 have been performed over the years, by Canon or third parties, in order to add features missing from the camera as-built:
• PC … See more

The T90 includes an integral motor driven film advance, focal plane shutter, mirror and aperture cocking and rewind functions. Canon broke new ground with the powered features of the camera. Previously, cameras used one powerful electric motor See more

Eight exposure modes are available. Program AE (Auto-Exposure) mode puts exposure control completely in the hands of the camera. Variable Shift Program AE allows the photographer to bias the camera towards narrow aperture with three Wide Angle … See more

While the T90 does not support the vast range of accessories available for Canon's F-1, F-1n or New F-1, a number of significant accessories are available. The pentaprism is not interchangeable, but the focusing screen is; eight different screens are available for … See more