1.5X Came on a CD with the telephotolens.
It adjust the autofocus for minolta fisheyes and telephotolens. It has also correct the bad autofocus( not precise or slow) probleme,I had with the original firmware( 1.02u). It replace the firmware 1.01e/u and 1.02 e/u.
Probleme that as been discuss on some camera site.
This is not a regular upgrade that you will find on Minolta site since it came with Minolta Telephotolens
Maybe with the telephotolens? I didn't check.
I strongly suggest that you upgrade to this version if you have similar problem with your autofocus even if you don't have a telephoto lens.
North America only , other country
ask: available A1 A2 7H1 and 7i
those are different f