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Mariash's Avatar
Canada
49 Posts
 Posted 04/27/2017  8:08 pm Show Profile   Bookmark this topic Add Mariash to your friends list Get a Link to this Message Number of Subscribers
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*** Edited by Staff to add YouTube tags. [youtube][/youtube] Please use them in the future. We prefer embedded video. ***

How to use a laser pointer to make an adapter lens for your smartphone, turning it into a homemade microscope!

(Just in case you don't have a microscope yet)
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Crazyb0's Avatar
10197 Posts
 Posted 04/27/2017  8:22 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
Neat idea, now I gotta get a smartphone...really, last Nokia cell phone I had since 2003 took a toilet dump in 2010.
Edited by Crazyb0
04/27/2017 8:22 pm
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Debrajc's Avatar
United States
4211 Posts
 Posted 04/27/2017  8:46 pm  Show Profile   Bookmark this reply Add Debrajc to your friends list Get a Link to this Reply
WoW!! That's pretty cool!

Thanks.
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BigSilver's Avatar
United States
2843 Posts
 Posted 04/27/2017  8:53 pm  Show Profile   Bookmark this reply Add BigSilver to your friends list Get a Link to this Reply
There have been threads here in the past discussing this.
I personally use this and share it with everyone who will listen to me.
Here is one of my favourite examples.

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BrianLikesCoins's Avatar
United States
152 Posts
 Posted 04/27/2017  10:41 pm  Show Profile   Bookmark this reply Add BrianLikesCoins to your friends list Get a Link to this Reply
Well I just bought a microscope... I wish I saw this before I bought it...

Edited by BrianLikesCoins
04/27/2017 10:42 pm
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Mariash's Avatar
Canada
49 Posts
 Posted 04/27/2017  11:39 pm  Show Profile   Bookmark this reply Add Mariash to your friends list Get a Link to this Reply
Just tried it and for 1.50, it works better than the 2MB USB Microscope I bought (for 60$, and had to return...). It's quite sensitive to movement though so it was hard to keep the focus with only my hand, until I found a way to prop the phone and have the coin at the perfect distance (about 2cm or max 1/2 inch from phone lens). It's not perfect in that because it's so close to the subject it's easy for it to cast a shadow on itself and the focused zone is small considering the space... Will post pics in a few minutes as soon as my phone has finished transferring photos to my laptop.
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spru's Avatar
United States
12477 Posts
 Posted 04/28/2017  02:28 am  Show Profile   Check spru's eBay Listings Bookmark this reply Add spru to your friends list Get a Link to this Reply
Very interesting. I know I have a laser pointer around here somewhere...

I have to try this.
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Mariash's Avatar
Canada
49 Posts
 Posted 05/01/2017  4:10 pm  Show Profile   Bookmark this reply Add Mariash to your friends list Get a Link to this Reply
I said I would post pictures of results. It's amaziiiing!!!

Pictures with super duper best cheapest microscope for 1.50$:

Note: pictures look even better than this, since they had to be modified to fit this forum...

I'm-Trying-This-Next...

I'm-Trying-This-Next...

So greatest difficulty is finding a way to have proper lighting without the phone creating shade on subject, and you need to figure a way to stabilize the thing without using your hands. I would not say that it's better than a 5MP microscope, but it's definitely better than a 2MP...

As opposed to pictures taken with 2MP USB microscope (UFO green spots are lights of the microscope):




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BigSilver's Avatar
United States
2843 Posts
 Posted 05/01/2017  4:17 pm  Show Profile   Bookmark this reply Add BigSilver to your friends list Get a Link to this Reply
Excellent.
I also have trouble with stabilizing the phone. BTW I use adhesive putty (aka tack) to stick the lens on the phone camera.
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Mariash's Avatar
Canada
49 Posts
 Posted 05/03/2017  11:52 pm  Show Profile   Bookmark this reply Add Mariash to your friends list Get a Link to this Reply
OK, so I went and bought a 5MP USB Microscope (Celestron Handheld Digital Microscope Pro) which promised " 5MP Sensor! Clear, crisp hight resolution snapshots and 30fps video images!" Hum. No. Just no. Again, the image was so pixelated. The 1.50$ "homemade poor man's microscope" did a better job, where I could actually zoom in. Also, big issue with the led lights. I bet USBs are better with non-reflective surfaces.

As I am not ready to pay for a 400$ microscope, I will get out adhesive putty, my glue gun, some tape, some cardboard and a box cutter and make myself an "iPhone Microscope" studio...

Here a pic taken with the 5M Celestron Pro:

The B is broken at the bottom, but you can hardly tell and no positioning, refocusing or zooming in with Photoshop made it clearer...


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