Canon 50mm 1.8f choices

[theshortstack]

I could do with a bit of help please.

I own a Canon 600D and have been tempted by the 50mm 1.8f as it seems to be very good value. Having had a look round a few shops though, I've also come across the Canon EOS50mm /f1.8EF Lens for around £20 more.

Can someone explain what the difference between the two lenses is please?

Thanks very much,

[donoreo]

Not sure. Any list of Canon lenses list two versions of the lens, the original from 1987 and the Mark II in production since 1990.

[alexharrison101]

isn't it the mount? EF as opposed to EF-S?

[wave01]

I can only see the mk1 and the mk2 they are both ef lenses. The mk2 nicknames the plastic fantastic is a good buy, it can be bought for under £100.