| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| umberto_rootman | "A DVD has a very wide dispersion, so wide that a whole spectrum is hard to obtain. To many lines / mm and the dispersion is doubled by the mirror l..." | Read more » | almost 4 years ago | |||
| umberto_rootman | "I posted a lot of findings about many other filters today, with sample pictures. I got my sample book of 200 filters (of which are ca. 80 of some u..." | Read more » | over 4 years ago | |||
| umberto_rootman | "All pictures have undergone 'auto levels'. This particular camera does not have to be white balanced. For many cameras, one has to white balance wi..." | Read more » | over 4 years ago | |||
| umberto_rootman | " Another great source for infrared color photos: a Roscolux sample book of 200 filters, of which at least 50 - 80 filters are useful. https://us...." | Read more » | over 4 years ago | |||
| umberto_rootman | "Excellent! On Wed, May 20, 2020 at 5:55 PM \<notifications@publiclab.org> wrote: Hi! There's been a response to your research note 'Cheap s..." | Read more » | over 4 years ago | |||
| umberto_rootman | "In the glare in the wind mill pic, left above, is a small spectrum visible, which illustrates which wavelengths are blocked by the filter: there is..." | Read more » | over 4 years ago | |||
| umberto_rootman | "As stated, the cyan filter was cut out from 3-D glasses " | Read more » | over 4 years ago | |||
| umberto_rootman | "The great thing about using the cyan or blue filter with a modded sports cam is the ability to record images or video without having to resort to c..." | Read more » | over 4 years ago | |||
| umberto_rootman | "I often use an orange-red filter, handheld in from of the camera, from a scrapped enlarger. I do a white balance with the eye dropper tool in PS, G..." | Read more » | over 4 years ago |