From the text:
"An OpenFlexure microscope can be constructed for as little as £15 or US$18
(this would cover the cost of the printed plastic, a camera and some
fastening hardware). A top-end version would cost a couple of hundred
pounds to produce, and would include a microscope objective and an embedded
Raspberry Pi computer."
There is no mention of the optics, and looking at the 3D render they are
using a standard microscope objective, and what appears to be an achromat
as a tube lens. You might be able to get those for $50 approx if you get
surplus and education grade optics.
On Mon, May 4, 2020 at 7:21 PM Arvydas Matiukas <[hidden email]>
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting.
> Hello Microscopists,
> did you see this article claiming $18 cost of 3D printed lab/research grade microscope:
> https://phys.org/news/2020-05-laboratory-grade-microscope-us18.html >
> To obtain research quality images you need quality optical parts that roughly cost few hundreds USD.
> Or I missed something? In the photo only 3D printed frame is shown.
> Best regards,
> Director of Microscopy Core
> SUNY Upstate Medical University
> CAUTION: This message originated from an external source
Julian P.S. Smith III
Director, Winthrop Microscopy Facility
Dept. of Biology
349 Columbia Ave
Rock Hill, SCÊ 29733
803-323-2111 x6427 (vox)
Research Website www.birdnest.org/smithj
Personal Website www.rociada-east.net