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  1. Troubador

    Diascope Generations

    Old Diascope Mine is an old Diascope 65, 15-45x, in silver, with two focusing knobs and looks like the pic below. Lee
  2. Troubador

    Diascope Generations

    Never mind the colour, look at the focusing knobs. The oldest models had two focusing knobs, one for fast focus and one for fine (slow) focus. Later models had only one focus knob but which combined both fast and slow focus depending how fast/forcefully you rotated the knob. Lee
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