JYC Sony/Minolta spacer ring set 7mm/14mm/28mm

• Sony A / Minolta

Set of intermediate rings (non-AF and aperture) with two attachments: one on the body side and one on the lens side. The rings can be used individually or together. They are mounted to increase the reproduction ratio.

MEASURE = LENGTH OF RING (mm) / f

Specifications:

• made of black aluminum - do not cause reflections, reflections or reflections
• do not degrade image quality (no optical elements)
• compatible with manual iris lenses
• can be freely combined
• always work flawlessly (no electronic components)
• allows the use of many lenses
• allow the use of all body functions (dedicated rings only)
• cause a reduction in lens brightness calculated according to the formula: Fr = F (f + d) / f [where: Fr - actual lens brightness; F - aperture set on the lens; f - focal length; lens (in mm); d - ring length]