The Belomo Agat 18K is a Soviet-era half-frame 35mm viewfinder camera produced in Belarus. It was a compact, low-cost model aimed at casual users, doubling the number of exposures available on a standard 35mm film roll.

Sales data for the Agat 18K is very thin: a single recorded UK auction hammer result from 2022 sold for £38, so today's value sits at the low end of the collectable Soviet camera market. With only one data point, what an Agat 18K is worth or sells for at saleroom level is best treated as indicative rather than a firm market price, and condition, completeness of case and working shutter speeds will swing any future result.