Olympus HI M100 question

A forum to ask questions, post setups, and generally discuss anything having to do with photomacrography and photomicroscopy.

Moderators: MacroMike, nzmacro, Ken Ramos, twebster, S. Alden

Locked
User avatar
wilash
Posts: 104
Joined: Wed Apr 13, 2005 4:43 pm
Location: Japan

Olympus HI M100 question

Post by wilash »

I found an Olympus HI M100 objective. With a NA of 1.30, I am sure it requires an immersion liquid to work. What would I need, how would I handle it, and what would I use to clean the objective. All my objectives are dry and so this is new to me.
Last edited by wilash on Sun Apr 30, 2006 9:27 pm, edited 1 time in total.
Will

User avatar
wilash
Posts: 104
Joined: Wed Apr 13, 2005 4:43 pm
Location: Japan

Post by wilash »

OK. I think I can answer a few of my questions:

HI = Homogeneous Immersion

The objective has a black band which indicates oil. But which oil? I take it Castrol GTX, while being liquid engineering, is not the stuff. Or does all oil used in microscopy have the same refractive index?

Any tips about using oil is welcome.
Will

User avatar
wilash
Posts: 104
Joined: Wed Apr 13, 2005 4:43 pm
Location: Japan

Post by wilash »

(Please excuse me while I have this conversation with myself.)

Here is a good article that may help:

http://www.cargille.com/immersionoilmicroscope.shtml
Will

rene
Posts: 125
Joined: Thu Mar 17, 2005 4:14 am

Post by rene »

Funny conversation :wink:

Some oils can be removed with alcohol, but I really would recommend pure white cleaning petrol. Most scope manufacturers would recommend against alcohol! Use little on a soft tissue and wipe the oil off. Saliva works very well also. It is not really necessary to keep the lens spotless, but don't let the oil get contaminated with dust etc. Do not use ceder oil as in the good old times: it hardens!

Good luck, Rene.

Locked