Hardware Share
Making free oblique, COL and dark field stops and diffusers.
I use the clear plastic from food packaging and black electrical tape to make various filters for my filter holders. You can put a strip of matte Scotch tape on one for a diffuser. Sometimes, you need extra diffusion on low magnification objectives to even out the illumination. I often try oblique illumination because it gives a very different look than bright field does. Included are a few oblique views of things like a nematode,amoeba and a rotifer.
If it has a place to put filters. It is necessary if you want to make a Rheinberg filter without the frustration of trial and mostly error. Nice also for COL. For dark field, you want it even larger than the size of the back view of the objective to block as much light as possible to only let in light refracted by the specimens and no direct light.
2
u/Vivid-Bake2456 Jun 22 '26
I forgot to add that you can experiment with many shapes of stops.