These are the best general purpose magnifiers for use in all areas of graphic arts production from pre-press to press.
Both feature achromatic lens systems which can be focused for individual eyesight and also have fully color corrected lenses.
The lens folds into a sturdy base, and has a lock-ring on lens which maintains focus.
Comes with a protective pouch.

10X - 1/4" Field of View (OPT-LM10) is Temporarily Unavailable
Click For Closest Replacement: Paragon Fold-Out Loupe 10X

12X Wide Field - 5/16" Field of View (OPT-LM12) Has Been Discontinued
Click For Closest Replacement: Betamag Folding Loupe 12X Wide Flat Field - 5/16" Field of View (OPT-BM12WF)