TobyC, post 5,
I found the following mono's, but there are certainly more:
- Bynolyt 7x30 Super Mono, FOV 122m/1000m, eyerelief 16 mm, 250 gram, close focus 7,2 m, 239 euros
- Bynolyt Spotter 10x50, FOV 101m/1000m, eyerelief 17,5 mm, 420 gram, close focus 2,5 m, ??
- Leica Monovid 8X20 plus close up lens, 475 euro
- Minox 8x25 macroscope, close focus 35 cm, 179 euro
- Zeiss 6x18 mono, sliding focus mechanism with very short close focus, 310 euro
other Zeiss mono's 4x12, 295 euro, 8x20 330 euro and 10x25 370 euro
Used market: Asahi Pentax 8x30 with closefocus lens can it be used as a microscope, also available under other brand names
- Some Russian brands on the used market 8x30, 7x50 and 12x60
So nice research project, I wish yo a lot of success,
Gijs van Ginkel