Modified Bubble Lens PENTAX Super-Multi-Coated TAKUMAR 1:1.8 55mm M42 Mount ☆ This lens has been modified to create bubble bokeh (circular outlines) instead of the usual bokeh (blurred background) when shooting with a blurred background. * The focus plane when shooting bokeh tends to be soft focus (close to being out of focus). ☆ Appearance: There are scratches and paint chips, it's a fair condition item. ☆ Lens (dust/debris = small, mold = none, haze = small, scratches = almost none) - all within a range that does not affect photography. ☆ Focusing ring operation is good. ☆ Aperture operation is good. ☆ Accessories: ・Front and rear caps (generic) ☆ No special operation or settings are required, and it can be handled in exactly the same way as a normal 55mm lens. You can also enjoy various depictions by adjusting the focus and aperture. ☆ "Close focus, wide open aperture" is the setting that most emphasizes the perfect circular bokeh effect. ☆ "Distant focus, wide open aperture" creates swirling bokeh. ☆ "～Higher aperture value" reduces the degree of soft focus and results in a depiction closer to normal (the bokeh effect diminishes when stopped down). ☆ "Close focus, mid-range aperture" creates hexagonal bokeh. ☆ The focus range is approximately 40cm to infinity (there may be slight individual differences) (distance scale may be off). ☆ This is an M42 mount, so a separate mount adapter is required for use with modern digital cameras. The adapter must be provided by the buyer. ☆ Sample photos include those taken with SMC/Super/Super-Multi-Coated TAKUMAR, but the effect is almost the same. ☆ Please note that we cannot answer questions about the modification method. ・Yamato Transport Takkyubin Compact (date and time specified, trackable) Free shipping within Japan * Please cooperate with simple packaging.