Kodak 3 x 3" #9 Yellow Optical Wratten 2 Filter is an industry-standard filter that just got better. With the same spectral response and color as current Wratten Gelatin Filters, Kodak Wratten 2 Optical Filters offer several improvements.
Slightly stronger than a #8, this filter is commonly used for an even more noticeable increase in contrast with black and white films. Especially useful for clear contrast between blue sky with clouds and foreground. It is also suitable for landscapes and nature scenes.
| Type | Wratten 2 |
| Size | 3 x 3" (75 x 75mm) |
| Grade | 9 |
| Filter Factor | 2 (+1 stop) |
| Multi-Coated | No |
| Rotating | No |
| Effect | Contrast control, enhanced skin tones, tonal corrections and more dramatic landscapes; noticeable increase in contrast with black and white films |
| Application | Controlling contrast in black and white photography |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Gel |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |