Originally Posted by D-Hutt
Good thoughts. I actually know nothing about microscopes. What's a decent "entry level" like you stated?
That's a really difficult question to answer, as it's super subjective. I've personally never gone out and personally purchased a microscope, my experiance with them is in relation to the Labwork I do as an Undergrad in Biology.
But, to see bacteria as anything more than specs you pretty much need the 1,000X magnification and strong resolution.
Yeast can be anywhere between 4-40 micrometers long depending on the species, while bacteria are .1-1 micrometers long depending on the species.http://www1.fccj.org/dbyres/images/yeast100.jpg
That's an Image of baking yeast at 400X, they're small but visiblehttp://www1.fccj.org/dbyres/images/yeast1000.jpg
The same image at 1000X
The yeast look more or less the same, but looking at human (or other multicellular Eukaryote) cells at 1,000X is pretty cool as you can see the structures of the organelles.
Basically you need to do some serious research and decide exactly what is an appropriate cost/performance balance for your needs.