High magnification lens

Close-up shooting equipment was fabricated for the next purpose, a professional photographer, Miss. Yumiko Banno has planned up a school next year to shoot an art in a teardrop bubble. Distilling small  bubble must be caught with adequate magnification, 1:1 ratio is not enough, more enlarging effect is required in the situation of shooting small babble.
The principle in some ordinary use cannot be adopted, because the distance between the lens and object is very short inviting difficulty of lighting source.
Consequently, 40 mm focal length is convenient for the purpose from a experiment point of view.
Konica Hexanon 38mm/2.8 mounted on Konica C-35 easy to use camera was utilized that was produced over 60 year ago, Triplet design lens module without no adjustable iris, but an automatic adjustable shutter mechanism construction played shutter and iris both together.
Avoiding spherical abrasions in closer distance, the lens module was set on the barrel in reverse. Brushed anti-reflective black cloth is plated inside of the barrel. Result on this device would be reported next year.