Author Comment Last activity Moderation
stef "Further to my previous replies, it may be possible to view the sun disk attenuated with the filters used by welders to view their work. I have not ..." | Read more » almost 6 years ago
stef "What I was alluding to is that with all of the filter attenuation, the cmos sensor was still overloaded. This can be seen in the spectra submitted..." | Read more » about 6 years ago
stef "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » about 6 years ago
stef "@warren, Here is the link to my latest cam also in Sun sky tags the slit is ca 0.04 mm cam is the MS..." | Read more » about 7 years ago