1. Some companies make adjustable neutral density filters by having two linear polarising layers. 2. A "'neutral density filter "'is a lens, but is hand-held here to illustrate the effect. 3. Conversely, the flatter its curve becomes, the closer the gel is to a neutral density filter . 4. When using a dense neutral density filter your camera's auto focus will be able to function. 5. Have you ever looked through a neutral density filter or any other type of solar filter? 6. The AX100 has neutral density filters built into the camera which is rare for a consumer camera. 7. Exposure may only be controlled by shutter speed, film or sensor sensitivity, or a rear-mounted neutral density filter . 8. He developed a set of graduated neutral density filters and had them produced by Singh-Ray, a filter manufacturer. 9. A neutral density filter is often used to achieve this darkening, so that the camera aperture remains unchanged. 10. Nonetheless, the Hologon had a standard accessory radially graduated 2 stop neutral density filter to ensure completely even exposure.
