replication:13460
replication:13460


Author Comment Last activity Moderation
warren "Hi, thanks for posting! One thing I've wondered about is whether different exposures -- that are not clipping/overexposed but are different overall..." | Read more » over 6 years ago
viechdokter "Hi Chris, you are right, the settings are important too. I absolutely forgot to mention them. Here is a (translated) snapshot of the settings: ..." | Read more » over 6 years ago
cfastie "Hi viechdokter, These are great observations. They reveal important features of spectra created using consumer cameras as the detector. It's real..." | Read more » over 6 years ago
viechdokter "Okay, now I understand. Thanx. " | Read more » over 6 years ago
warren "Hi, I think the glass in the camera lens and the sensor limitations may prevent much UV, even without a window. When we use a laser, we're mostly ..." | Read more » over 6 years ago
viechdokter "Okay, my sunlight did not show much UV because I let it shine through a glass window. Next time I will try without the glass. (Waiting for the nex..." | Read more » over 6 years ago
dhaffnersr "I am so glad that you asked that question! I use 2 types of cuvettes, 1) Quartz - they have neutral UV absorption, so it passes right on through wi..." | Read more » over 6 years ago
viechdokter "Thank you Dave. By the way, I had a look at your works and was very impressed. (Not that I would have understood most of it...) But one question ca..." | Read more » over 6 years ago
dhaffnersr "hello! Very colorful spectra, you don't really have to be a scientist to see the beauty in those colors, amazing, isn't it? Your right , you have a..." | Read more » over 6 years ago
viechdokter " Tried the substraction and yes, it does show the dips! Cool! " | Read more » over 6 years ago
warren "No problem and good luck! Post again -- i'm sure others would love to see some ideas for reducing overall light level. " | Read more » over 6 years ago
viechdokter "Hi Warren, thanx again for your input. Next time we get some sun I will try to work with reflective surfaces to reduce overall light intensity to a..." | Read more » over 6 years ago
warren "Hi! It looks like both of your spectra are clipping -- hitting 100% and flattening. You can learn a bit about how to avoid this here: https://publ..." | Read more » over 6 years ago
viechdokter " Here is an overlay of the curves. " | Read more » over 6 years ago