which cameras are compatible with sony alpha 100?

Answer 1

restate your question

Answer 2

Unfortunately fhotoace is mistaken in his reference to Minolta. When Minolta introduced the world's first AF SLR, the MAXXUM 7000, in 1985, they changed their lens mount. Those of us who were heavily invested in the manual focus MC/MD ROKKOR lenses were orphaned.

In 2003 Minolta and Konica formed Konica-Minolta. In 2006 they ceased camera production and Sony bought their (actually Minolta's) DSLR line and renamed it the Alpha (which is somewhat ironic since the MAXXUM 7000 was sold in Japan as the MAXXUM Alpha).

So all Minolta AF lenses designed for the MAXXUM line will work with the Sony Alpha. These AF lenses will NOT mount to the older Minolta SLR cameras such as the SRT-202 or XG-9 or X-700 or XE-7, etc. There is an adaptor -occasionally found on ebay - to mount the older MC/MD manual focus lenses to the MAXXUM/SONY.

I was saddened by the demise of Minolta. They designed and built some extraordinary cameras and lenses. When faced with falling behind in Auto exposure cameras, Leica came to Minolta for technological help. The result was the Minolta XE-7 which they then manufactured using Leica's metering system and lens mount and was sold by Leica as the R-3. (Leitz collaborated with Copal to design the shutter.) The later Minolta XD-11 (the world's first camera with both Aperture Priority and Shutter Priority and Manual metering) was sold by Leica as the R-4. Leica also sold the Minolta 16mm fisheye lens and the 35-70mm f3.5 and the 70-210mm f4 constant aperture zooms under their name.