Pentax Optio T20 — early touchscreen digital compact from Pentax's T-series, late 2000s.
The Pentax Optio T20 is a touchscreen digital compact from Pentax's T-series, one of the first camera ranges to bring touch control to a mainstream point-and-shoot when it launched in the mid-to-late 2000s. It followed the pioneering Optio T10 in the range.
The T20 combines a small CCD sensor with a 3x optical zoom lens, operated through a touch-sensitive rear LCD screen used for both menu navigation and shooting settings. It runs on a rechargeable lithium-ion battery and stores images on SD memory cards, with automatic exposure control.
The touchscreen interface set the T-series apart from Pentax's button-driven Optio models, though the resistive-style screen technology of the period requires firmer presses than modern capacitive touchscreens. Exposure remains fully automatic, with the camera aimed at ease of use rather than manual control.
Used Optio T20 examples are inexpensive today, though buyers should pay close attention to touchscreen responsiveness, as ageing units can develop dead zones or drift. Also check the lithium-ion battery for charge retention and confirm the zoom lens operates smoothly before purchase.