Getting the correct hoods for the Minolta 35\'s is specifically tricky, even with the versions that use the 49mm filter thread. For instance, the slip-on Minolta hood for the last version of the MD (without any Rokkor in the name) will not properly fit the earlier MD versions that are marked MD Rokkor and MD Rokkor-X (the last MD only version has an indented ring on the barrel that this hood locks into, the earlier versions lack the indented ring!). Ask me how I know! The earlier MC 35 Rokkor-HG\'s use completely different hoods and filter thread sizes (52mm I believe). So, with the 35/2.8\'s, we have three different filter thread sizes - 49, 52 and 55.
I use the hood off my Minolta MC 28/2.5 on my late MC 35/2.8 (52mm thread) and sometimes this aftermarket hood with the 49mm versions (which seems like it should vignette slightly though I have not found that to actually be the case):
The earlier MC 35 Rokkor-HG\'s use completely different hoods and filter thread sizes (52mm I believe). So, with the 35/2.8\'s, we have three different filter thread sizes - 49, 52 and 55.