is -1.50 diopters. Minus 4.50, 3.50, 2.50, 0.50, and
plus 0.50, and 1.50 are available. I see the waist
level finder has the same selection. They may
be one and the same.
You are farsighted with contacts. Years ago I wore
contacts and IIRC some time must pass after they are
removed before the eye adjusts; is back to normal. I'm
about 1 meter + farsighted and use the likely minus 1.5;
will check. I wouldn't bet on it but the minus 2.5 may be
what you need being more farsighted with contacts.
Plus 3 is a very strong reading glass and a world apart from
minus 1.5. I use a drugstore pair for close examinations.
BTW perhaps a nearby drugstore has a selection. Dan