The Tiffen Yellow 8 Glass Filter is commonly used for a noticeable increase in contrast with black and white films. It is especially useful for clear contrast between blue sky with clouds and foreground. It is also suitable for landscapes and nature scenes. If your black and white photos lack that certain "snap" and just need a pinch of contrast, a Yellow 8 should give them enough of a boost to bring them to an acceptable stage.
Tiffen, a leader in the filter industry, proudly makes its filters in the USA and backs up its products with a solid 10-year warranty.
Especially useful for added contrast between blue sky with clouds and foreground
Good choice for general black and white landscape photography