- #15 Filter for Enhanced B&W Contrast
- 4x Filter Factor, +2 Stops
- 39mm Front Filter Threads
- Front and Rear Coating
- Schott Glass Construction
- Brass Filter Ring
The Heliopan 39mm #15 Dark Yellow Filter is a basic contrast filter, primarily for use with black and white film, that very strongly darkens skies and blues, increases contrast, and is often used for outdoor photography to emphasize contrast and shadows. There is an approximate 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure.
The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.
This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.
- Dark yellow contrast filter for black and white film strongly darkens skies and blue tones, cuts through haze, and increases overall contrast.
- Commonly used for landscape photography to emphasize blue skies and give clouds more visual depth. Also used for aerial and micro photography applications where added contrast can be used to enhance detail.
- 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.
- Dual threading with 39mm front filter threads permits combining with other filters.
| Type | Dark yellow |
| Size | 39 mm |
| Grade | #15 |
| Filter Factor | Approx. 4x (2 stops) |
| Multi-Coated | Yes; single-coating |
| Effect | Strongly darken skies, increase contrast |
| Construction | Schott glass and brass filter ring |
| Front Filter Thread Size | 39 mm |
| Front Lens Cap Size | 39 mm |
| Packaging Info |
| Package Weight | 0.1 lb |
| Box Dimensions (LxWxH) | 3.307 x 2.756 x 0.394" |
In the Box
Heliopan 39mm #15 Dark Yellow Filter
- Limited Lifetime Warranty
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