Cokin a series a028 warm 81c filter
The cokin a series a028 warm 81c filter is designed to add additional warmth to portrait photography whilst rendering skin tones nearly normal this filter eliminates excessive amounts of blue from open shade on extremely clear days and is stronger than both the 81a and 81b controlling the bluish coloration that affects daylight film the filter is known to be ideal for general landscape photography on cloudy days this product is a light balancing filter which reduces colour temperature