Making My Own DIY Super-Wide-Angle Macro Lens | PetaPixel
A Zoom Lens For Your Webcam | Hackaday
How to Make a Telephoto Camera Lens Out of an Empty Pringles Can | PetaPixel
Homemade Telephoto Lenses: The Basics | Homemade Lens | Flickr
Build a Super Telephoto Lenses w/o Using a Camera Lens: DIY and Photo Experiments Forum: Digital Photography Review
Diy 3mp 1/2.5" 3.6mm 90 Degrees Angle View Cctv Fixed Ir Board Camera Lens M12 Mtv Lens Mount Screws For Analog Ip Camera Module - Cctv Lens - AliExpress
Video: How to make a DIY telephoto pinhole camera with a Pringles can: Digital Photography Review
General Use F290 Diy Projector Glass Lens For 10-12 Inch Projector/projection Diy Home Cinema Rd-806 Lens - Accessories - AliExpress
Build a Super Telephoto Lenses w/o Using a Camera Lens: DIY and Photo Experiments Forum: Digital Photography Review
DIY Telephoto lens support – Part II – Filip Ghinea | Photography Chronicles
This DIY camera attachment to hold 2 camera lenses together in the wrong direction. This either gives my zoom a 0.2X or 5.12X multiplication. (0.43X and 2.2X for $10 each) : r/functionalprint