Onion peel and insect parts

Projected on a wall
Ant’s leg projected on a wall

Ant's body

Onion peel projected on a wall
Onion peel projected on a wall.

Hi everyone,

First of all, thank you Manu for creating such a wonderful device. It would be very useful to use foldscope in diagnosing deadly diseases on-the-go.

Me and Shree are 2nd year MBBS students at ‘Sri Dharmasthala Manjunatheswara College of Medical sciences and hospital, Karnataka’.

We were very excited to receive our foldscope. We got it from Agastya Foundation, Kuppam, a special thanks to Chaya.

There was no light module so we had to use a LED torch to project the images. It was so fun assembling the foldscope. The interesting facts on the paper kept us thinking a lot about microscopy. Since we didn’t have any prepared slides we had to use some common items.

Even though a foldscope looks to be pretty easy, once we start using it we got to know the enormous amount of technology that it has gone through.

This was our start, we would come back tomorrow with lot more interesting work. Till then take care. “Happy Foldscope-ing”

11 Comments Add yours

  1. laksiyer says:

    Great Projections. Guru and Shree. Being MBBS students, you will encounter several parasites that are well within the realm of the foldscope. Further, the smallest human cells are also easily seen . I cant wait to see how you would use it in your own studies.

    BTW, you can easily work around the absence of a light source (Havent been using one for long). See this post by Manu which will give you a work around using a desk lamp. Also, if possible experiment with focus. lock


  2. Guru & Shree says:

    Thanks for the link and your appreciation Laks.
    Tomorrow we are planning to take foldscope to our histology lab to test the magnification of foldscope.

    Could you grossly tell me to what extent can a foldscope magnify.

  3. laksiyer says:

    140x for the lens that you have.

  4. Guru & Shree says:

    How can we increase the magnifying power?
    Coz I would need at least a 1000x for studying peripheral blood smears.

  5. Guru & Shree says:

    I’ve ordered these lens online. Would they help me magnify more?

    Insasta IN72354 Universal 3 in 1 Cell Phone Camera Lens Kit – Fish Eye Lens / 2 in 1 Macro Lens & Wide Angle https://www.amazon.in/dp/B01DDWHG1M/ref=cm_sw_r_cp_apa_i_Ylmjyb9DGF42B

  6. laksiyer says:

    You will have to try and see, A new lens will change the magnification but by how much is unclear. Actually, if you have a decent camera, digital zoom gives you about 4x magnification and you get ~500x. I tried some experiments combining the foldscope and a compound microscope… if you are interested in knowing what happens.. see

    Perhaps @Manu will give you a precise answer.

  7. Guru & Shree says:

    @Laks: How can I contact Manu?

  8. Manu Prakash says:

    Dear Guru and Shree;

    Sorry for the delay in getting back – I read all comments and I am excited about your ideas on peripheral blood examinations. We have some new lenses that we can share with you – specially for a 1000x magnifications.

    Before that though; it’s important for you to be come expert with the instrument. As you do more experiments – you will understand the depth of focus and back focal length; so make sure you take images of a lot of things. I am hear to answer your questions.


  9. Guru & Shree says:

    @Manu: Thanks in loads for your assurance.
    Firstly we would try out working on foldscope in learning how to focus correctly then we’ll combine foldscope with the lenses we ordered online and observe the magnification.

    The atmosphere here has filled with zeal.
    We introduced foldscope to our classmates and everybody is pretty much excited as we are now.
    We’ll post our second observation on #microcosmos today.I assure you that it would be worth the wait.

    “Happy Foldscope-ing”

  10. Guru & Shree says:

    @Manu: We would love to have those lenses .(1000x)
    Coz we’ve been given a time of 2 months by our college in upgrading foldscope’s magnification up to 1000x or more. After January 2017, the college management is gonna buy new compound microscopes for physiology laboratory. If we can show them that a foldscope can do the same magnification as a compound microscope then a lot of money can be saved and more foldscopes can also be bought and distributed to our Primary Health Centres where they lack good microscopes.

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