The unique design of the Beseler Bilateral Alignment Tool incorporates two highly accurate, twin spirit levels which allow the simultaneous measurement of both left to right and front to back enlarger alignment.
While the Bilateral Alignment Tool can be used with most enlargers regardless of brand, a 4 x 4" adapter (included) fits directly in to the lens stage, and allows for "hands free" measurement when aligning the lens stage of 23C or 45 series Beseler enlargers.