Good news from the Photokina.
B+W announce two new GND (grey) filters that can be used with the Cokin Z-Pro and Lee filter holder.
number 701 (- 1 stop soft)
number 702 (- 2 stop soft)
Glas with MRC sealing, 10x15 cm, delivered in a tin box
B + W graduated neutral density filters are often used in landscape photography in order to avoid an overexposure of the sky with a correct exposure of the ground. As in overexposured areas of the picture image information is normally lost the effect of this filter can hardly be simulated by electronic image processing.
The filters are coloured neutral gray with a smooth transition into the neutral filter half. With screwed filter the rotatable mount allows an exact horizontal alignment.
The glass substrate of the B+W ND filters 701 and 702 are absolutely plane and parallel and finely polished. This guarantees a long lasting high optical quality. By means of thin layer technology the ND gradient is evaporated. The below values refer to the darkest filter glass parts:
701 +1 stop (50% transmission)
702 +2 stop (25% transmission)
The graduated ND filters are provided with a high quality MRC coating. MRC (Multi Resistant Coating) coated filters have an MC layer ensuring a high transmission and maximum anti-reflective surface. Furthermore, MRC is dirt and water repellent and makes cleaning much more easier.