L50/3xTTL Through The Lense loupes

3.0x TTL Loupes


Model Magnification Working distance Depth of Field Field of view Weight
300S/TTL 3X 340mm 60mm 60mm 69.5g
300R/TTL 3X 420mm 80mm 65mm 69.5g
300L/TTL 3X 500mm 90mm 70mm 69.5g
300XL/TTL 3X 550cm 100mm 75mm 69.5g

Interpupillary Distance:59-61mm; 61-63mm;63-65mm

color:black loupes, black frame, black fasten belt, black clean fabric, black eyeglass case.


Through The Lense loupes (TTL) do not have the flip-up mechanism. Consequently they are lighter than the Flip-Up system.Since every TTL system needs to be custom made based on the user's Pupil Distance (PD), the cost is higher than a Flip-Up. However, some loupe users prefer the lighter weight TTL system over the convenience of the Flip-Up system.