🔍 Loupe Set - Dual 10x+20x, 10x, 30x, 3 Piece Review

I don't know how many words I have to spend on a three dollar magnifying glass (there are three of them in set). They are best suited for non-critical applications. The quality of the optics is not particularly high, since there is a clear difference between these loupes and, for example, an ADE loupe of the same power. At first I thought I was seeing something, but after testing it turned out that all these different loupes (including 30x) had the same power. For real! These magnifying glasses

Just a note: 30x isn't really 30x. It just isn't. This is my first set of loops and I can still say it. But I don't really care because I didn't need more than 10x in the beginning. This set was cheaper than most 10x loupes I've seen. Okay now that it's done. I'm sure if you're looking for a professional optician to look at the details of a beautiful gem, for example, this set probably won't be up to the job. This isn't what I was looking for. I only bought them to study the nibs of my fountain

I have to add a technical note to this review. The expression for the magnification of a simple lens is: M = fl/(fl-od), where M is the magnification, fl is the focal length of the lens in a convenient unit, and od is the distance from the center of the lens to the observation object. viewed in the same units. Therefore no magnifying glass has a fixed magnification as we are constantly moving it up and down to get the best view and the magnification will change as we do so. The formula above…