My understanding that A mount Sony and Zeiss lens will only work in late model Minolta bodies, the 3, and 5 and 7 and 9s that had been modified to work with micro motor lens. All the earlier bodies will only work with gear driven lens. You can get a solid Minolta 7 for under a few hundred bucks, A mount Zeiss lens are expensive but all are AF if that's important.
Minolta A-mount , Sony A-mount and Sony Zeiss A-mount lenses that are focussed via the screwdrive from the body work 100% with all Minolta A/F bodies back to the first 7000AF and 9000AF bodies .
Sony still sell screwdriven lenses .
Only the SSM and SAM lenses require a body from after 2000 to function with auto focus . Dynax/Maxxum 3,4,5,7 and updated 9's , as well as the Dynax 40 & 60 ( Maxxum 50 & 70 ) models .
Later lenses with 8 pins from 2000 ( with exception to the Xi zoom lenses where these are a power supply and command pins) are the "D" type that have a distance encoding chip in for ADI flash control .
Non SSM/SAM 8 pin lenses are fully backward compatible with the 5 pin 5/7000 AF and 9000AF camera bodies with auto focus working just fine .
They don't support ADI flash , so don't need information from the chip .
Flash metering is the then usual TTL OTF flash metering .
Hi Paul, my understanding is that any non-SSM A-mount lens will work on bodies as far back as the original Maxxum/Dynax 7000. This would include current production Sony A-mount lenses such as the Sony Sonnar T* 135mm f/1.8 ZA SAL135F18Z.
A-mount lenses such as the Sony Distagon T* 24mm f/2 ZA SSM SAL24F20Z are usable on bodies with SSM capability. There is quite alot written about this on photo.net and dyxum.com.
You quite right with this .
However , SSM and SAM lenses can still be used on earlier bodies but in manual focus only .
So for landscapes and portraits this is often not a problem .
I often use manual focus lenses on my auto focus bodies , film and digital .
Aperture works the same as another A-mount lens .