Watchmakers Hastings Triplet 10x...The same 15mm lens as in the Bausch & Lomb L602 above. This loupe has the best optical correction to make viewing free of distortion and color blurring. Working distance: 1”, power 10x. (applies to L599)
Watchmakers Single Lens Eye Loupe...These loupes have light frames and soft, non-glare surfaces. Their lenses are ground and carefully polished from the best optical glass.