- Lens Grinder on rail + no cnc + for diy men
- Light barrier for film holders
- New 8 x 20 camera
- Seiko SLV part needed
- Homemade CCD with self assembly smallest leds
- Source for CNC work
- What front standard to use?
- Difference between DOE and Zone Plate
- Print your own lens
- Lens making with inorganic particles and polymer mix
- Extension back design questions...
- Assymetric Tilts
- Lensplate and back dimension, a quickie
- My new inventions on lens making
- Holga lens formula/diagram?
- Stabilizer bars
- Directors viewfinder with tilt shift DIY
- Walnut nobs!
- My new 8x20 strap!
- Easy way to mount lenses without a jam nut (mounting flange)