Phase contrast setup in Vickers M15 (not M15C)
Posted: Tue Jan 12, 2021 5:46 pm
I have recently bought a Vickers M15 part of a batch which belonged to a biological science university department. All microscopes in the batch come with 40x and 100x phase contrast objectives, which suggests those objectives are there by design rather than chance.
Yet, the condenser (see picture) seems to be the apochromatic or aplanatic one in the Vickers literature, rather than the phase contrast one (the latter has a rotating disc holding the annuli).
I am wondering how the lab used those phase contrast objectives. As you may see from the picture the condenser has a slot which suggests it could house a sliding holder for the annuli. Yet, there is no trace of such a condenser in the Vickers literature (neither https://groups.rifeforum.com/Files/Micr ... 204-65.pdf nor https://groups.rifeforum.com/Files/Micr ... ctions.pdf)
Would anybody have an idea of what I am dealing with? Is it the case that the lab had installed non-Vickers condensers or is that a phase contrast Vickers condenser I am not aware of. In the latter case, I'd like to be able to get hold of the annuli holder or get some information to diy it.
Many thanks in advance.
Yet, the condenser (see picture) seems to be the apochromatic or aplanatic one in the Vickers literature, rather than the phase contrast one (the latter has a rotating disc holding the annuli).
I am wondering how the lab used those phase contrast objectives. As you may see from the picture the condenser has a slot which suggests it could house a sliding holder for the annuli. Yet, there is no trace of such a condenser in the Vickers literature (neither https://groups.rifeforum.com/Files/Micr ... 204-65.pdf nor https://groups.rifeforum.com/Files/Micr ... ctions.pdf)
Would anybody have an idea of what I am dealing with? Is it the case that the lab had installed non-Vickers condensers or is that a phase contrast Vickers condenser I am not aware of. In the latter case, I'd like to be able to get hold of the annuli holder or get some information to diy it.
Many thanks in advance.