| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| hanswilms | "It's okay! https://spectralworkbench.org/spectrums/110231 Is there anything else I can link? Like I said, it just starts trying to save my calibra..." | Read more » | over 6 years ago | |||
| warren | "Can you link us to your calibration attempt? Sorry you're having trouble! " | Read more » | over 6 years ago | |||
| cfastie | "I don't recall seeing instructions for making spectra of plant leaves. Such a spectrum could be of the light reflected from the surface of a leaf o..." | Read more » | almost 7 years ago | |||
| cfastie | "Although the full range of near infrared transmission of the Rosco 19 filter has not been measured (by anyone we know about ), we are not without t..." | Read more » | almost 7 years ago | |||
| suman | "Dear Chris, After some thoughts , i believe Rosco 19 is not accurate enough, i mean it collects only few spectrum of infrared. If ..." | Read more » | almost 7 years ago | |||
| suman | "Dear Chris, Thank you so much for your reply. So the accuracy relies on the custom white balance settings. I found one interesting..." | Read more » | almost 7 years ago | |||
| cfastie | "The spectral response graphs supplied by Rosco don't go past 740 nm. So we are assuming that there is some transmission farther into the near infra..." | Read more » | almost 7 years ago | |||
| suman | "Dear Chris & Mathew, Does the Rosco 19 Fire allows the light spectrum from only 560 to 740 nm range? The Wratten 25 A transm..." | Read more » | almost 7 years ago | |||
| larsonreever | "You'll need to ensure all your data has the same cross-section if you want to compare it or use this calibration for other readings. " | Read more » | about 7 years ago | |||
| xose | "I've recently tried with a Nikon D700 + Elmarit 35mm with good results. If you have an extra lens cap you can try making a hole and fix the spectr..." | Read more » | over 7 years ago | |||
| sirkubax | "thx, I thought about using DSLR camera (EOS 350D) that has a bigger sensor and a better lens, it might (not sure yet) capture the spectrum better " | Read more » | over 7 years ago | |||
| xose | "Hi! (5)You can try pointing your spectrometer to a white paper in the place of pointing it directly to the light. (6) I think that depends on the ..." | Read more » | over 7 years ago | |||
| sirkubax | "So you were right about 1 - on firefox rear camera works... thx Rear camera capture: p 6. How to get the image/spectrum to fill the whole capture..." | Read more » | over 7 years ago | |||
| liz | "Hi! Thank you for helping debug, and for being an open source supporter! Seems to me like some instructions got lost in the wash, so i'll type them..." | Read more » | over 7 years ago | |||
| xose | "Hi bochamu can you share some links to your uploaded spectra? " | Read more » | over 7 years ago | |||
| Iqbaljurist | "I assume you are in optics class with Mr. Gea " | Read more » | over 7 years ago | |||
| warren | "Thanks for sharing the link. Because you're using an uploaded image, the top row of pixels is quite dark, and that's the one used as your cross-sec..." | Read more » | over 7 years ago | |||
| chuynh451 | "Here is my latest try: https://spectralworkbench.org/spectrums/89850 " | Read more » | over 7 years ago | |||
| warren | "Can you link to your spectra so I can see? " | Read more » | over 7 years ago | |||
| Claytonb | "@Thorsten I have not tried using a chart like the color checker though I have used materials(plastic, felt, paper) in the shade of red on the chart..." | Read more » | over 7 years ago | |||
| Thorsten | "@Claytonb great work as usual! Two questions: Have you tried some reddish colors of calibration targets such as the ColorChecker? http://xriteph..." | Read more » | over 7 years ago | |||
| cfastie | "This is a great discovery. It will be good to learn how this color works with a red filter like Wratten 25. I will keep my eye out for Boom Chicka ..." | Read more » | over 7 years ago | |||
| pjsbill | "Hi Warren, In the frame level rate it is around 20-30 fps, better than the raspberry. I think that the resolution of the camera is at maximum, I d..." | Read more » | about 9 years ago | |||
| warren | "Were you able to do this at full camera resolution? What frame rate? Do you have some video youve saved that you can share? Thanks!! " | Read more » | about 9 years ago |