I have been reading the manual in Module 1 you talk about immersion oil that is needed to do Darkfield. I’m not finding anymore information about the oil in the manual. So i looked it up on the internet on eBay, they have 2 different types, Type A and Type B and the brands names are Cargille and AmScope. Which type or brand is better to use?
We usually recommend type A as it has a lower viscosity than type B, and it’s more ideal because there is a small gap between the condenser and slide (type B is recommended where the gap is larger). Type A is also less likely to get air bubbles in the oil.