I finally got the two spectrometers
They are very handy, compact, they feel good in the hand.
there is no CD in the box, but the seller gave in the bill the link to download two software.
I used on of them for the calibration, as i have said in my past message, a fluorescent lamp is good. it has an option especially for the fluorescent lamp, a good chance.
after the calibration, i used a green laser pointer, and the calibration was good, an error of 1.7 nm, i think that with two point calibration, it is already a good one.
the second spectrometer has the same caracteristics
I can clearly seprate the pics at 542nm and 546nm, it is a very good point a resolution pwer;
After the calibration, i used one of them to elaborate the absorption spectra of different colored filters, and it is just wonderful and easy. I used for this the second software.
Tomorrow, i will use them for the study of colored solutions.
If i get good results, i will be the happiest teaher of physics.
Until now, a very good mark and feedbacks about the spectrometers, tomorrow, I will tell you more.