The history of Meopta Prerov can be traced back to 1933, when the company Optikotechna was founded in Prerov.​​​

The Meopta Belar 75mm f4.5 magnifying lens is a magnifying lens from the Czech Republic. It has a three-piece cook-like structure. The coke barrel can be used. Since the rear thread of this lens is M23.5 thread, the thickness is 0.5MM, so if you use it in a normal magnifier, you need to use M23.5 to M39. There are several different versions of this lens, there is one The version has four apertures, so his bokeh is a square aperture, which is what many enthusiasts do. However, the version I have is a five-aperture version. During the test, the image density is very high, and the sharpness in the focus is also good. However, there is a disadvantage that it is too balanced and the characteristics are not obvious. The advantage is that the overall optical quality is very good and cheap. , you can buy it on ebay for only ten dollars.

Looking back now, I found that I spent a lot of money on meyer for a three-piece bubble bokeh effect. It’s a bit of a loss. Many old projection lenses are three-piece, and the first three are enlarged, and there are many manufacturers. The early lenses were also in three-piece versions, such as Voigtar’s Voigtar, which were cheap and charming, so they went around and returned to their original places.

sample

The rear mount of the meopta belar 75mm f4.5 lens is M23.5mm, so I directly inserted it into the M42 close-up adapter for practical use.