| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stoft | "(original comment seems gone...) ...I commented that I did try a pattern but that the auto-focus for the default camera appeared to focus momentari..." | Read more » | over 10 years ago | |||
| warren | "Hmmm... could we put some kind of other fixed shape or something in the field of view that the focus would lock to, and that we could meter exposur..." | Read more » | over 10 years ago | |||
| stoft | "Ok, guess having the exposure default to max isn't too bad, but actually setting the exposure to max is better. I've seen evidence that the standar..." | Read more » | over 10 years ago | |||
| warren | "Actually it looks like there has been some progress: https://code.google.com/p/chromium/issues/detail?id=290161&q=camera%20selection%20android&..." | Read more » | over 10 years ago | |||
| warren | "BTW: SWB does not work with an S4 active android because it defaults to the front camera instead of the back and there does not appear to be a swit..." | Read more » | over 10 years ago | |||
| stoft | "Depends on what you want to monitor. If the whole spectrum is dynamically changing, then maybe not because the relationship between clipped peaks a..." | Read more » | over 10 years ago | |||
| warren | "scale to live capture I meant, computationally... could you do it in real-time, even on a mobile device? For curvature, I think this happens quit..." | Read more » | over 10 years ago | |||
| stoft | "Jeff, re: "...scale to live capture...". I'll have to guess that you mean observing spectral responses over time with the idea of generating a 'wat..." | Read more » | over 10 years ago | |||
| warren | "Couple other notes - curvature correction would be great and pretty consistent for still captures, but would it scale to live-capture... and would ..." | Read more » | over 10 years ago | |||
| stoft | "Yes, resolution is affected by slit width; though much less than the intensity change which is related to the square area. I'd had some success in ..." | Read more » | over 10 years ago | |||
| cfastie | "Would it work to have a constant width slit with an integrated neutral density gradient from 100% transmission at one end to something less than th..." | Read more » | over 10 years ago | |||
| stoft | "Pascal, Thanks. Hope my posted note on HDR2 is readable. Just a thought on the 'stepped-slit'. I constructed a number of them with the idea of for..." | Read more » | over 10 years ago | |||
| PascalW | "Jeff: I was pretty busy the last few days and have to admit I couldn't follow the discussion on Sreyanth's proposal to closely. But I have a long ..." | Read more » | over 10 years ago | |||
| stoft | "Agreed, there is more than enough work here for two highly motivated contributors. On your HDR example above, two observations: I think there is s..." | Read more » | over 10 years ago | |||
| cfastie | "Pascal, These are some really good ideas you are proposing. I am very interested in multiple, bracketed exposures to get more dynamic range. This w..." | Read more » | over 10 years ago | |||
| warren | "Hi, Pascal - this seems like a great project. Please check out some of the thoughts on digitization of images from my comment on Sreyanth's proposa..." | Read more » | over 10 years ago | |||
| stoft | "Chris, I just looked around at some of the posted spectra and I think I see the source of the issue you raised. The posted spectra images are NOT f..." | Read more » | over 10 years ago | |||
| stoft | "Chris, I suspect there is more attenuation gradient to be gleaned from the images than first meets the eye (as there was more than I'd suspected in..." | Read more » | over 10 years ago | |||
| cfastie | "Dave, This is an excellent idea. It looks like you are able to get much more information out of typical spectra. A quick look at recent spectra at..." | Read more » | over 10 years ago | |||
| warren | "I think if we do something with a few more lines, as you say, we can try it out. Say, 75-50-25-0-25-50-75, each band being about a 1/4" wide. If yo..." | Read more » | almost 11 years ago | |||
| stoft | "Yes, I could print a couple sheets but it would be best to decide on the best pattern and density if you're looking to send something along the lin..." | Read more » | almost 11 years ago | |||
| warren | "Aha! http://www.amazon.com/3M-3700-Color-Laser-Transparency/dp/B00004TS5M/ I'll order this now; maybe drying won't be a problem with a laser print..." | Read more » | almost 11 years ago | |||
| warren | "I actually don't have an inkjet printer; would you be at all interested in printing a few sheets of this and mailing it to me? I could then cut it ..." | Read more » | almost 11 years ago | |||
| stoft | "Yes, I ink-jet printed on 'Grafix' transparency film (not the adhesive version)-- it's available on-line via Amazon. It's reasonably stiff in small..." | Read more » | almost 11 years ago |