The Microflex is a crank-wound 6×6 TLR made by Micro Precision Products, launched in 1958 and the last of MPP's medium-format cameras.
The Microflex has a pair of Taylor, Taylor & Hobson Micronar 77.5mm lenses; the taking lens is f/3.5, the viewing lens f/3.2. These had been designed by MPP, and they are therefore unique to the Microflex.
The lens elements were assembled and inspected by MPP. Optically, the Microflex is of excellent quality.