Thank you so much enricosavazzi! I just bought one of the Mitutoyos with red text at a suspiciously low price, but maybe I just got lucky.

Are counterfeit Mitutoyo objectives a concern? I have noticed minor differences between used Mitutoyo objectives, mostly that some of them have red text, while new objectives have all black text. Here is a genuine 20x: http://www.photomacrography.net/forum/userpix/6479_1009329_2.jpg This one doesn't...