Standard Infrared Filter
The Standard IR filter is our most popular choice as it’s also the filter most frequently used as a threaded lens filter. It has a 50% pass frequency of 720nm and is equivalent to the Wratten 89B gelatin filter.
Since this filter also transmits a little bit of the visible deep red light the resulting image has a bit of color in it. With proper adjustment in Photoshop you can achieve the very popular blue sky effect.