6A65.52 - Variable Focal Length Lenses
The lens will work with either air or water. Connect the lens to the syringe and make the lens more convex by pushing more air or water into the lens. You can also make the lens concave by pulling air or water out of the lens.
- Satoko Uchida, "A Variable Focal Length Lens Made from a Food Preservation Lid", TPT, Vol. 57, #3, Mar. 2019, p. 173.
- Luka Vidic, Miha Kos, "Squeezing Light", TPT, Vol. 50, #9, Dec. 2012, p. 570.
- Roger E. Malcolm, "Fluid Lenses", TPT, Vol. 27, # 8, Nov. 1989, p. 636.
- Robert Ehrlich, "10.5 - A Water Lens", Why Toast Lands Jelly-Side Down, p. 161.
- Robert Ehrlich, "10.6. A Rotating Water Lens", Why Toast Lands Jelly-Side Down, p. 162.
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