Neutral density filter that reduces the light to an equivalent of 10 f-stops. With the Hoya ProND EX 1000 filter, we can photograph, even using very bright lenses with the maximum aperture open, or correct the shutter speed and extend it by a few seconds working in full sun. Thanks to this, we can, for example, obtain the effect of blurring the motion of moving objects, impossible to achieve without a filter.
PROND EX filters use transparent HOYA optical glass, which is mounted in a light, precision-made aluminum frame. The frame has a front filter thread, so you can attach additional filters or a lens cap.