Re: Bausch & Lomb Balplan objectives

Kevin Cunningham wrote:
"Brad" <no.email.address@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:LFwAf.82$0s.20@xxxxxxxxxxx

Hello everyone!

I have three Balplan 50X flat field objectives (model number 31 12 25) that I intend to sell on ebay. I would like to know if these objectives work on any othe B&L scopes, or if they are Balplan only. I am certain that they don't work on any non-B&L scopes.


Brad, Brands of microscope objectives should stay with the frame of the maker. There are a whole bunch of things to be corrected either in the eyepiece or the objective. No maker corrects things the way the competitor does. B and L should stay with B and L.

While I've seen Balplan objectives on Dynazooms, in general it is not a good idea.

Thanks,

Kevin Cunningham
SMS


Thanks for the info Kevin. You've confirmed what I've suspected.
.

Relevant Pages

  • Re: AO Spencer Polarizing Microscopes
    ... Although there is more than one type of polarizing microscope, ... used for mineral analysis, and not incident-light metallurgical scopes, ... Objectives for polarizing work need to be strain-free, ... I don't know what the Smith-Baker option was. ...
    (sci.techniques.microscopy)
  • Re: AO Spencer Polarizing Microscopes
    ... Did AO/Spencer have specific eyepiece and objectives for polarizing ... Those scopes closely resemble my B&L petrographic scope of ... When it comes to literature on older microscopes, ...
    (sci.techniques.microscopy)
  • Re: so called new approach to design doublet APOs. ;>)
    ... Back are not now talking about scopes and other products they might have ... Bill asked me to post a review of it. ... not having proper objectives to replace them with. ... >> even the one that Bill's telescope tube manufacturer broke the front ...
    (sci.astro.amateur)
  • Re: New Televue Eyepice Design
    ... reasonable time frame) for pre-existing designs? ... Do these replace the existing scopes? ... The smaller objectives have less surface area to figure and polish, and he's gone back to an oil spaced design - so he's only got to work on two air to glass surfaces instead of the six on the 160. ...
    (sci.astro.amateur)
  • Re: How can I determine what objective is needed for my Bausch & Lomb.
    ... of AO objectives are infinity corrected, that is a huge difference over the ... Kevin Cunningham ... > The gray microscope has three objectives that can all focus while on ... >> bet the instruments are the old, black bodied ones but it would help to ...
    (sci.techniques.microscopy)