I am quite sure it would work but only in manual mode. No TTL of course because it's a Nikon and not a Pentax. The K2 has TTL meter for ambient light but not for flash. I would certainly think the LX is closer to the F3 than the K2. The K2 doesn't have motor drive (even if you have the K2KMD it's only 2fps), No interchangable viewfinder, no interchangable focusing screen, no 1/2000 shutter speed, no titanium shutter curtain.
Originally Posted by barzune