Fitting filters to eos-M m100.

[powerlord]

Just sharing this. I'm getting my m100 full spectrum converted for ir photography and astro. I'll need uvir for basic astro, but wanted to be able to use duo-band too and preferably without putting expensive 2" on end of lenses.

So I laser cut these little hoops. You can pop in a 1.25" filter once you've taken out mount, and it covers the sensor (just!). Tasted here with uvir, but will get a zwo duo to use too.

Tested with some lenses and focuses fine.

A cheap way to get aps-c osc wideband and narrowband imaging.

 

[powerlord]

Here's an l-extreme done too. Alongside the uvir cut. I've painted wood black. The only thing left I think is that I might need to create a mask out of thin black plastic to just be .2mm or so smaller hole so light doesn't go through edges as these are tapered and I imagine will scatter light.