Item No
Silver 08350A-4.5X
Red 08350B-4.5X
Features
Through the Lens (TTL) do not have the flip-up mechanism, Consequently they are lighter and the depth of field, the field of view is deeper and width than the flip-up system. So most of users are easily get used to the TTL loupes on the beginning. Since every TTL loupes needs to be custom-made based on the user's Pupillary Distance (PD) the cost is higher and also takes time. Thanks to the new revolution design. We now offer four different PD protective eyeglasses SS,S,R,L. (SS = PD 56mm, S = PD 58mm, R = PD 60m, and L = PD 64mm.) It's easy for customers to choose the right PD eyeglasses by PD meter. Put the right eyeglasses into the frame, screw in the desired loupes (4.5X), your TTL loupes is ready to use.