#185

[@photobobo]

Illumination from the top is called epi illumination, dark field is lit from the bottom using a stop patch that blocks direct light but allows oblique light,

[@IjazMuhammad-ey8qc]

This should be called smart man's dark field microscope. Excellent work.

[@t1d100]

A clever and industrious DIY solution, which took a good bit of non-electronics knowledge about microscopes = Kudos! Good on you = Atta-boy.

[@q12x]

very cool !

[@rob_pic]

Nice job, can you show us some sample footage with the 40x?

[@IMSAIGuy]

OK, when I get a chance

[@apostleofazathoth7696]

Very helpful!

[@tech29X]

We're not seeing it work. Show us how it performs in action and some pictures from the oculars.

[@IMSAIGuy]

it was used in this video kzbin.info/www/bejne/iGerd2ijpsmoY9k

[@IMSAIGuy]

kzbin.info/www/bejne/r5Kym62ofsmXhNk

[@IMSAIGuy]

kzbin.info/www/bejne/l6S8dISOmLqfhdE

[@disasterexperiments493]

Man I wish they sold those tiny little ring lights online

[@IMSAIGuy]

I've got a couple bare PC boards if you want one

[@uberscientist]

@@IMSAIGuy Do you still have extra PCBs? I just ordered an old darkfield objective off ebay and need to figure something out. I might just use thin wire and solder right to the LEDs

[@IMSAIGuy]

@@uberscientist www.pcbway.com/project/shareproject/Small_LED_Ring_Light.html

[@peterjf7723]

Do you need to use a dark field objective? Could you not just attach the mini ring light to a normal objective?

[@IMSAIGuy]

I'm sure that would work for low power objectives. It might be hard for objectives with vary small working distances.

[@caidenmartin1839]

Or you could make a dark field patch stop

[@disasterexperiments493]

@@caidenmartin1839 that's under not overhead darkfield illumination but it still works just not as well for higher magnification in particular

[@dzarren]

It's probably cheaper than a full compound microscope, but not poor man's really. Also you dont do any dark field microscopy in your videos.

[@THATHATSALLFOLKS]

UM

[@migranthawker2952]

Soooooo long-winded!!!