Up to 32GB (SDHC; older body, 16-32GB cards are the safe choice)
Battery
Pentax D-LI90
Size
156 x 117 x 119 mm
Weight
1480 g with batteries
Pentax 645D FAQ
What battery does the Pentax 645D use?
Pentax 645D uses Pentax D-LI90. When buying used, confirm the seller includes a working charger or plan to add one. See the battery guide for charger and spare-battery checks.
What memory card does the Pentax 645D take?
Pentax 645D uses SD/SDHC. The current buyer-facing maximum is Up to 32GB (SDHC; older body, 16-32GB cards are the safe choice); for older or unusual formats, stay within that limit and avoid oversized cards. See the memory card guide before buying cards for older cameras.
Is the Pentax 645D worth buying used?
It can be worth buying if you want a 40 MP Pentax digital camera from 2010 with Medium format CCD Processor Prime II. Check power, lens movement, screen condition, and storage access before paying. Run the used digital camera checklist before buying. For nearby Pentax options, compare Pentax *ist DS2 and Pentax 645Z.
How do you transfer photos from the Pentax 645D?
The simplest transfer path is usually to remove the memory card and use a compatible card reader. If the camera uses internal storage or a rare card format, confirm the cable or reader before buying. The card reader guide and photo transfer guide cover the common options.
Pentax 645D is worth judging as its own Pentax K-mount DSLR body, not just as a generic old compact. Start with condition, the exact battery/card setup, and whether its look fits what you want to shoot.
What owners like
Pentax 645D works best when you want simple snapshots, direct flash, and the relaxed character people look for in older digital compacts rather than a technically perfect modern camera; its Medium format (44 x 33 mm) CCD and interchangeable lens mount are the main character of the look.
Common complaints
Check the lens movement, flash, screen, buttons, and card door calmly before relying on it; older compact bodies can need a little patience without being a bad buy.
What to compare
Compare it with Pentax K200D, Pentax 645Z, Pentax Efina, Pentax Q to decide whether you want this exact body, a cheaper nearby compact, or a slightly more capable alternative.