Comments

Author Comment Last activity Moderation
smurpau "Yeah, the webcam itself gives a good image and is focused. Moving the diffraction grating from 60 degrees to 45 degrees on top of the webcam gave t..." | Read more » over 4 years ago
smurpau "Welp, still no luck, although the purple tint does appear to reduce the clipping (presumably just by absorbing some of the incident light) " | Read more » over 4 years ago
smurpau "You know what, you're right. I don't see anything reflected from either side through the ethanol-washed piece, but I do through the original purple..." | Read more » over 4 years ago
smurpau "Is this the paper holder you mean? I can't see any real gap from the front or back. I tried the spectrometer with the slit reversed as well (I'll t..." | Read more » over 4 years ago
smurpau "Yes, this is the fluorescent tube 0.4mm slit diffraction grating and webcam As I said I've focused the webcam without the diffraction grating..." | Read more » over 4 years ago
smurpau "Thanks for your reply @stoft. The light source is a fluorescent tube (there aren't any CFLs available here). I also have a green flashlight and my ..." | Read more » over 4 years ago
smurpau "I have the v3.0 kit but can't get a focused spectrum no matter how far I turn the focus ring clockwise or counter clockwise. The diffraction gratin..." | Read more » over 4 years ago