Objective wanted

[apochronaut]

I am looking for a 50X( or close to; not 40 but I might consider a 60x) non-immersion, either Hacker or C. Beck and sons( CBS) objective. I might also consider another 37mm parfocal lens such as Leitz . I honestly don't know if Hacker and CBS made such an objective but they both made some unusual magnifications, such as 30x and 80x, so I am hoping a 50 is out there somewhere.

thanks to anyone who can help or offer information.

[exmarine]

Sorry i can not help you but you mentioned 'odd' objectives well just a bit of information for you I have a X45 and a X75 objectives plus a X50 o.i. objective. I am not selling any of them at present. Good luck with your quest.

[Yann E.]

Hello Apo,

I have 2 45x, a Leitz (170mm) and a BBT-Krauss (presumably 160mm, I will check). I'm willing to part with both the Leitz and the set of 3 (9.5x, 45x, 100x oil) to which the BBT belongs.

Best,
Yann

[apochronaut]

Hello Apo,

I have 2 45x, a Leitz (170mm) and a BBT-Krauss (presumably 160mm, I will check). I'm willing to part with both the Leitz and the set of 3 (9.5x, 45x, 100x oil) to which the BBT belongs.

Best,
Yann

Thanks for the offer.
I can't use the set but I might consider the Leitz, if nothing else shows up.
I'm building up a 4 objective dry field microscope. 10x .30, 30x .55, ? and 80x .90, so I would prefer a 50x, in order to keep the spacing . The existing objectives are all 160mm, so the Leitz would be reduced down to 42.3x. I'll let you know.