OM System POSR-EP11 Anti-reflective Ring Lens Mount_Pentax K helping to minimise the effects

helping to minimise the effects of camera shake

Keep exposure settings constant throughout the zoom range to maintain low-light capability or action-stopping shutter speeds with consistently spectacular image quality

For those seeking the ultimate in image quality in photography or videography

In less-than-ideal lighting conditions

giving excellent results under most conditions

OM System POSR-EP11 Anti-reflective Ring Lens Mount_Pentax K helping to minimise the effectsThis is an anti reflective ring dedicated for the M. Zuiko Digital ED 30mm f3. 5 Macro. When using it with an underwater protector, it helps prevent reflections during underwater macro shooting.