No High Mag Lens in Deluxe Kit? Would Love to Buy One!

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I just received my Foldscope Deluxe Kit a few days ago and I have not put it down! I assembled the Foldscope according to the instructions and it works great. I believe the two lenses that came with the kit are the 140x magnification lenses, which leads me to wonder where I can find a foldscope-compatible High mag lens? I must admit, I did think one would come included in the kit, but I am more than willing to purchase one separately because I am all about contributing towards the cause of putting a microscope in the hands of those who really need it, for cheap! I’ve been playing around with building other leeuwenhoek microscopes out of CD lenses and I will probably try making a lens using the butane torch and glass rod technique, just for fun. I am giddy with excitement for when I can view microorganisms with a handheld microscope!

The image is a fragment of roasted seaweed snack. (very tasty)

REC

6 Comments Add yours

  1. I also miss the high mag lens…

  2. Hazuka says:

    I just got the deluxe kit with 2 lenses and I just imaged the 0.5mm grid using each and can report that they are exactly the same. I get ~2mm field of view with each and can’t resolve bacteria.

  3. REC says:

    With a butane torch and a glass stirring rod, one can create a smaller lens, albeit with much practice. I eventually produced a lens adequate enough to yield a higher magnification than the provided lenses. The resulting lens is about as small as the tip of a ballpoint pen… Which presents the biggest problem: Seating the lens in a reliable holder. I have had the most success with sandwiching the lens between two pieces of black electrical tape and shaving a small opening to look through. The lens can then be taped to a phone camera (preferably the front facing camera) for viewing. I haven’t figured out how to mount the lens on the foldscope without destroying it yet, though…

  4. gglez says:

    Very upset that I didn’t get the high magnification lens. That’s the reason I bought it . They should tell you that since on the website said that comes with both. Now I don’t know what to do. No response from foldscope team:(

    1. Manu Prakash says:

      Dear Gglez,

      The deluxe kit only comes with 140x mag lens. It has two; one a spare lens for later use. The detailed description is at http://www.foldscope.com with all the components. The deluxe kit has many accessory tools including light module for dark field and angular illumination, chamber slides to long term capture of microorganisms in a small chamber, several cell filtration meshes (5,25, 100 microns) for separation of materials out in the field. The current description clearly states the lens magnification. We apologize if this was a confusion. If you have an unused kit (with the foldscope sheet – please send a picture to info@foldscope.com and cc honomi@foldscope.com); we will look into a return if you are not happy with the product.

      Thanks again for engaging and supporting access to microscopy broadly.
      Manu

  5. Manu Prakash says:

    Dear Rec,

    We are working on a new group of lenses; both higher and lower mag. But they won’t be available this summer. The first phase of Foldscope deployment did include a 450x lens.

    Cheers
    Manu

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