A friend is willing to give me (as a gift) a set of close-up lenses (A.K.A diopters or macro filters) and he has two such sets, One is 58mm and the other is 72mm, which coincidentally are the ones needed for the two zoom lenses I already have.
Which one should I choose and why?
Would the size of one of the sets be better than the other? Would the effect be more noticeable in one size than in the other? Is one size more prone to aberrations and other distortions?
Please note I'm not asking whether they are good or not, or if there are other alternatives (Dedicated macro lens, extension tubes, lens reversal) nor the pros and cons between them. These questions are very well covered in this site already.
If needed: My current lenses are Canon EF 28-138 and EF-s 18-55. Also, I have used hollow macro extension tubes before and know their usability drawbacks. I don't do a lot of macro work but sporadically a practical solution is needed. (Wich normally I resolve using an Olympus XZ-1 which can have a very short focusing distance near 2cm)