- Description
- Specifications
Description
W4 color correction filter warms the ambient light entering the lens by 500° kelvin (+40 mired shift) by adding light amber color to the overall exposure. This filter helps fine-tune the color or look of your scene to match your film's white balance or creative vision.
The Hoya W4 filter is helpful when:
You are using daylight-balanced film and the light source is colder than the desired look and you need a specific amount of color correction to match your film's color balance (5500°K). Great on strong overcast days or when you subject is in the heavy shade.
When shooting portraits and you want to give the skin tone a sun-kissed warm look.
You are shooting at sunrise or sunset with daylight-balanced film (5500° K) and you want to a really warm looking scene.
HOYA Multi-Coat (HMC) filters are recommended for enhancing the performance of today’s multicoated lenses. These popular filters minimize reflection, reduce flare and ghosting, and result in over 97% average light transmission.
Comparison of C Series Filters:
FILTER |
Cooling Amount |
Equivalent |
W2 |
200°K (+20 Mired Shift) |
81A |
W4 |
500° K (+40 Mired Shift) |
81D |
W10 |
1950° (+100 Mired Shift) |
@85 |
| W12 | 2200° (+120 Mired Shift) | @85B |
Specifications
| Exposure loss: | 2/3 Stop |
| Mired Shift | +40 |
| Equivalent Filter | 81D |
| Glass Type: | Hoya Optical |
| Number of Multi-Coatings: | 6 total / 3 each side |
| Hardened Top Layer: | No |
| Anti-Static: | No |
| Frame Construction: | Low Profile / Aluminum |
| Front Filter Threads: | Yes |