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Compatibility of a Zeiss 20x objective
Posted: Tue Jul 27, 2021 11:32 pm
by andyman9277
Im wondering if anyone would know if this Zeiss ACHROSTIGMAT 20x objective:
https://www.ebay.com/itm/265183549477?m ... nl%3Dmkcid
is compatible with this Zeiss AXIOLAB microscope?:
https://imgur.com/a/MOxF4IZ
The objectives on my microscope say ACHROMAT, not ACHROSTIGMAT like in the eBay link. Appreciate the responses.
Re: Compatibility of a Zeiss 20x objective
Posted: Wed Jul 28, 2021 12:20 pm
by apochronaut
Achrostigmats were similar to CP Achromats( clinical plan achromats). They are not as flat over as wide a field as plan achromats, something similar to Neoplan or semi-plan objectives.
They were a briefly sold budget line that Zeiss sold back in the early days of their entry into an infinity optical system.
They would not be as good an objective as what you already have.
Re: Compatibility of a Zeiss 20x objective
Posted: Thu Jul 29, 2021 12:44 am
by andyman9277
Thanks for the response! But do you think it would fit?
Re: Compatibility of a Zeiss 20x objective
Posted: Thu Jul 29, 2021 1:44 am
by apochronaut
As long as the threads are good. It is R.M.S. and infinity corrected for the German made Zeiss system ( 165.4mm reference length). I can't comment about parfocality but since it is a 20X , it has a slightly longer w.d. than a high dry or oil immersion objective, so would not be too far off. Sometmes one has to focus down a bit ftom a 20X.