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What's the highest magnification you use on a microscope and why?

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jpanhalt:

--- Quote from: coppercone2 on April 19, 2024, 06:49:42 am ---what microscope can do like 100x without a white cloud starting to show up in the picture? its useful for various things like PCB sides, connectors, etc. but a electronics one needs a huge base to be useful at that range (rail system)

--- End quote ---

Do you mean 100X objective (resolving power) or 100X total magnification?  Presumably, you are asking about viewing opaque objects, not transmission microscopy.  The working distance for a 100X objective in a typical microscope is quite small, e.g., negative in air, which is why oil immersion is used.

For total of 100X magnification, you can use a 5X objective and 20X eyepiece.  Some dissection/inspection microscopes may do that.  Mine only goes to 4X objective.

coppercone2:
well maybe not 100x, but at high zoom, its usable but there is white fog. oil is not really practical in this situation. I figured its just a consequence of such high zoom. It stops being 'nice' at like 40x.

Say looking down from the top on a BNC connector center pin hanging in a arm off the side of a table (held in small helper hand), for microscopes on big articulating arm/rails (heavy, big and hard to adjust... you gently tap them to get the image centered after the screws are tightened lol)

actually better way to describe it might be a off blue/yellow haze, not white fog, and they are always stereo (for electronics)

Phil1977:
That may be a bad case of out-of-focus-chromatic-aberation. This frequently happens with optical systems that are better specified than they really are - like all these toy microscopes and telescopes with astronomic magnifications for little money.

I don't say that yours is *such* a bad design, but with a really good design a flat target (e.g. a money bill or better some IC die) stays sharp and crispy over all available magnifications.

coppercone2:
yeah its for 3d objects what I mean is if you use a stereo microscope and then you get a high zoom one (in the 1000$ range) it gets worse the more you go

I think its extremely useful. i mean you either can see it or not see it. with how small everything got, you basically won't say that its a waste of money

100x lets you look at 1 number on a penny. thats still not that small. for really looking at a 0402 part its not like its a bad buy

You just won't see the problems without zoom. see no evil there is no evil? ???


but there is a problem, the rail microscopes are god damn huge

also, even more zoom, maybe... for looking at glass diodes. just for diodes 200x :)

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