- Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.
- Constructed from Schott glass for optical clarity.
- Brass filter ring helps to prevent jamming and provides additional strength.
Overview
The Heliopan 49mm Light Yellow Filter is a basic contrast filter, primarily for use with black and white film, that is primarily used as a haze filter to subtly darken blue tones and increase overall contrast. There is an approximate 1.5-2x filter factor with this filter, requiring an increase of 0.5 to 1 stop for normal exposure. For all outdoor photographs. Small correction to blue sky, improved contrast in distance photographs.
Specifications
- Warranty:
- Limited Lifetime
- Physical:
- Filter Factore:
- 2 (+1 stop)
- Filter Size:
- 49mm
- Frame Material:
- Brass
- Optics:
- Schott