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This item have scratches on optic part (suspect on prism frontal side). Focusing very coarse and cant be held in place (too easy move and no fixing screw or something like it) I suggest to add any type of scale. But it cheap and i have'nt any reason to upset.
Verified purchase: Yes | Condition: New
This Is an amazing value for the price. All components are glass and are functionally perfectly comparable to a good traditional handheld spectroscope. All the components that make those spectroscopes so expensive are neatly in place here and they are legit versions of them. It's obviously a 7$ toy, so as would be expected all is jammed together without care and in the cheapest way possible, the amici prism and other optics are chipped on the side and the build tolerances are atrocious, but tbh is amazing that it does contain those components in a glass version to begin with. Particularly the Amici prism is impossible to find outside of scientific equipment replacements and go for hundreds of dollars. If anyone expects everything better at this price they are just delusional. It came fully assembled from factory, focused very well and was totally functional, that said, this is very easy to assemble and disassemble and is an amazing component farm for DIY projects, like adding a scale or building a spectrometer with the prism (Prisms are way more efficient than diffraction gratings, but they are not linear in their output, this is an Amici prism, a special prism that separates light in nearly the same angle as it entered the prism, very useful and hard to find. It is glass though, not quartz, so forget about UV light) Once disassembled it contains; The frame tube, a focusing lens, a slit optic (very well made actually), an Amici prism, a back cover lens, and structural rings for focusing and holding the lenses. All optics are glass.Read full review
Verified purchase: Yes | Condition: New
It has a good resolutions for teaching purposes. Sharp image.
Verified purchase: Yes | Condition: New
Nice little item. It actually works. I looked at spectrum from fluorescent bulbs and led. Very cool. Sharp lines. No measurement lines but heck it's still cool.
Verified purchase: Yes | Condition: New
I can use my physics classes very well.
Verified purchase: Yes | Condition: New