Help With Light
Help With Light
I am currently looking for micrometeorites. When I look at my samples under a microscope, they look black/dark, even where they are not. What can I do to fix this? I have tried the full range of brightness. I have also tried different surrounding lightings including pitch black. I will attach a picture of a sample under a microscope and from above.
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- unnamed.jpg (87.79 KiB) Viewed 2573 times
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- WIN_20210706_14_20_21_Pro.jpg (45.95 KiB) Viewed 2573 times
Re: Help With Light
You will need to use incident [epi] illumination, Keats
What you are using is only suitable for translucent specimens.
As a quick test, try holding a bright torch [flashlight] above the specimen stage.
MichaelG.
What you are using is only suitable for translucent specimens.
As a quick test, try holding a bright torch [flashlight] above the specimen stage.
MichaelG.
Too many 'projects'
Re: Help With Light
Look for goose neck lighting or LED ring lighting, or just use a flashlight somehow mounted to aim at the sample.
The LED ring light (example pictured here) can be found and not be as expensive as the gooseneck options.
More officially, an epi would be used for metallurgical microscopes. If goes above the objectives below the camera.
The LED ring light (example pictured here) can be found and not be as expensive as the gooseneck options.
More officially, an epi would be used for metallurgical microscopes. If goes above the objectives below the camera.
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- s-l1600.jpg (58.13 KiB) Viewed 2559 times
Re: Help With Light
Too many 'projects'
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apochronaut
- Posts: 6314
- Joined: Fri May 15, 2015 12:15 am
Re: Help With Light
Ringlights give a very flat quality of illumination. For many subjects, some shadowing improves the stereomicroscope's imaging ability. Usually a mix of lighting locations and types provide the best quality lighting..
I found these useful as fill lights and for adjustable shadowing when needed. Bright , portable and flexible.
https://www.ebay.ca/itm/223423992850?_t ... 7AwQgfNamp GE9AnK%252FzPNNobcaD%252ByoPpEAn2v2ITFxVF33cMc4fUYqb7as6FxpoVa3t%252FjtoYLDE2393uwZDTG%252FoR9XI7XeJL%252BCR%252Fn9n7o%252F0CTfHfL2N9B%252FOGqbZa1VQSmYfxo7Pml0JxfEFPUuBDfiSrMEGuKbR4GIDe9dX5H%252FW2fFEu8nSxjkmm1SlqTQ%252B5Dz%252BIVEU%252BDNWgMxTEqj50PAfDz6kgWQ%252F9ouGr1HmimP9RIwo9GsmNWf8Z8dRmX54QL2JHyjbiP4PuH66mvEkXSKShi1jbBDCl7%252FGGve2xPVFsZckMTNQ0r%252F%252Bwl27zP2RHPR1NxpFW8m%252BxqXz7sew9XrZZhrLKtArUy%252FO3Um47t1BcBiY38XYXLhMbeFj0w7Wz88SWp7d49q1bnnnyyM9hkKFSzihl8%252BLX8YxWx3pm%252FRmvfF4fg2uaRAHH6TnzP%252Blbn3U74V%252BG09s%253D%7Campid%3APL_CLK%7Cclp%3A2334524
I found these useful as fill lights and for adjustable shadowing when needed. Bright , portable and flexible.
https://www.ebay.ca/itm/223423992850?_t ... 7AwQgfNamp GE9AnK%252FzPNNobcaD%252ByoPpEAn2v2ITFxVF33cMc4fUYqb7as6FxpoVa3t%252FjtoYLDE2393uwZDTG%252FoR9XI7XeJL%252BCR%252Fn9n7o%252F0CTfHfL2N9B%252FOGqbZa1VQSmYfxo7Pml0JxfEFPUuBDfiSrMEGuKbR4GIDe9dX5H%252FW2fFEu8nSxjkmm1SlqTQ%252B5Dz%252BIVEU%252BDNWgMxTEqj50PAfDz6kgWQ%252F9ouGr1HmimP9RIwo9GsmNWf8Z8dRmX54QL2JHyjbiP4PuH66mvEkXSKShi1jbBDCl7%252FGGve2xPVFsZckMTNQ0r%252F%252Bwl27zP2RHPR1NxpFW8m%252BxqXz7sew9XrZZhrLKtArUy%252FO3Um47t1BcBiY38XYXLhMbeFj0w7Wz88SWp7d49q1bnnnyyM9hkKFSzihl8%252BLX8YxWx3pm%252FRmvfF4fg2uaRAHH6TnzP%252Blbn3U74V%252BG09s%253D%7Campid%3APL_CLK%7Cclp%3A2334524
Last edited by apochronaut on Tue Jul 06, 2021 9:51 pm, edited 2 times in total.
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Phill Brown
- Posts: 607
- Joined: Mon May 24, 2021 1:19 pm
- Location: Devon UK.
Re: Help With Light
Mobile phone flashlight are bright pinpoint LED.
Ok for 4x 10x test.
Ok for 4x 10x test.
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DonSchaeffer
- Posts: 3333
- Joined: Sun Mar 22, 2020 10:06 am
- Location: Winnipeg, Manitoba, Canada
Re: Help With Light
You might consider a stereo microscope for this kind of study.