Question: Where can microscope lenses (objectives) be bought?

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warren asked on December 08, 2017 14:59
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The #microscopes project is moving along amazingly. I see that the raspberry pi microscope project uses a cheap lens (or objective) -- where can these be bought and for how much?

Do they need to be a certain type to fit the design posted by @partsandcrafts?



lenses microscopes sourcing objectives

question:microscopes question:sourcing question:basic-microscope



3 Comments

warren 2 months ago

@bmela @kgradow1 @wmacfarl is this already listed in the activities you posted? I just wanted a place to list links and prices and options. Thanks!

kgradow1 2 months ago

We got ours from Amscope: http://www.amscope.com/4x-100x-four-achromatic-objective-lens-set.html#product_tabs_description_tabbed. 20mm RMS-thread mounting size. (I'm not sure what RMS-thread is, but I'd assume it's standard). And really, the thread mounting doesn't really matter, because we're screwing it into a 3D printed piece with no threads.

kgradow1 2 months ago

We haven't tested a wide range of objectives -- that would be a great next step for this project

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2 Answers


stevie 26 days ago

Hi @kgradow1 wondering which lens you would recommend for a starter kit for imaging some of the PM materials we've been speaking about?

kgradow1 26 days ago

Do you mean which magnification? Either 40x or 100x are good. I think the 40x is slightly easier to start with, since it's easier to find your material in the field of view. At 100x, any slight vibration changes the view dramatically, and it requires a significantly lighter touch to get the hang of being able to focus on anything specific

stevie 26 days ago

ok great! we'll start with the 40x thanks!

kgradow1 26 days ago

I'd love to work through a build at 4x or 10x, which should a much simpler in terms of onboarding and just learning how to use the scope. At those magnifications you wouldn't be able to see PM, I don't think.

stevie 26 days ago

hmm maybe we could get 1 or 2 10xes. Any idea why the cost on the 10x ones here vary so much? http://www.amscope.com/accessories/objective.html?i_magnifying_power=1186 Have you tried the $15 one?

kgradow1 26 days ago

The cost of all of them actually vary a lot. We took a 40x apart at the barnraising and realized it only has two lenses inside of it, which seemed strange, but it still works. We weren't able to get the high right on the 10x to actually see anything, which seems weird and is a thing worth troubleshooting. I don't think it will work as-is if we just hook up a 10x on the current setup

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