APS-C DSLR from 2005 built on the Pentax *ist DS platform, sold under the Samsung brand as GX-1L (kit) or GX-1S (body) with Pentax KAF mount.
The Samsung GX-1 (2005) is a Samsung-branded repackaging of the Pentax *ist DS 2 — an OEM arrangement where Samsung sold Pentax's DSLR body under the Samsung brand in certain markets, primarily South Korea. It is fully compatible with the Pentax K-mount lens ecosystem.
6.1MP APS-C CCD, Pentax K-mount (KF), 11-point AF, multi-mode AE, dust removal, 2.5-inch LCD, SD card. Mechanically and optically identical to Pentax *ist DS 2.
The Samsung GX-1 is functionally identical to the Pentax *ist DS 2 — same sensor, same AF system, same Pentax K-mount lens compatibility. The Samsung branding affects cosmetics and firmware language options; camera performance is identical. Full Pentax K-mount compatibility means all SMC Pentax A, F, FA, and D-FA lenses function. The dust removal system uses sensor vibration for cleaning.
Same checks as Pentax *ist DS 2: test AF across all 11 points, test dust removal, check SD card slot, test all exposure modes. Verify Pentax K-mount engagement with FA or A-series lenses. Check battery (D-Li50 or BP-DC5 compatible).