| 摘要 |
<p>Through the lens light metering in cameras provide indication of reflected light only. The light filter camera attachment disclosed provides the capability to measure incident light using the metering circuit of the camera to which it is attached. The light filter includes a translucent semi-sphere (12) projecting from a plate (8). The plate (8) has a translucent central portion (9) and a threaded portion (13) for attaching the filter to lens (34).</p> |
