Pentax's 2006 budget ultracompact — 7.1MP 1/2.5-inch CCD, 3x 38-114mm equiv zoom, 2.5-inch LCD, SD storage, AA power.
The Pentax Optio M20 was a budget ultracompact digital camera announced in August 2006, slotting into the affordable end of Pentax's Optio line below the style-led S and T series. It was the follow-up point in the M series that continued with the Optio M30, aimed squarely at casual snapshooters wanting simple automatic operation.
It pairs a 7.1-megapixel 1/2.5-inch CCD with a Pentax-branded 3x optical zoom (6.3-18.9mm, roughly 38-114mm equivalent). Framing is done entirely on the 2.5-inch, 115,000-pixel LCD — there is no optical viewfinder. Sensitivity reaches ISO 1600, the fastest shutter speed is 1/2000 sec, and it records VGA movies at 30 frames per second. Images are stored on SD cards, connectivity is USB, and power comes from two AA batteries rather than a proprietary pack.
The M20's appeal today is straightforward CCD-era snapshot imaging with zero battery anxiety: AA cells are available anywhere, and SD cards remain the standard format. It suits anyone after a cheap, pocketable digicam for casual or travel use. Expect noisy output above base ISO and a laggy interface by modern standards — this was entry-level even in 2006.
Condition checks are simple on this one. Alkaline leakage in the AA compartment is the most common killer, so inspect the contacts closely. Verify the lens extends and retracts without grinding, the LCD is free of bleed and deep scratches (it is the only viewfinder), and test a shot at base ISO for the CCD colour rendering these are increasingly bought for. SD compatibility usually tops out at 2GB non-SDHC cards on cameras of this era — confirm with a small card.