Photo Sensor Accuracy

I am working on a project that utilizes photosensors to control a series of servo motors. I am finding that the photo sensors are a bit fickle in there ability to detect light. Does anyone know of any sort of cell that can more accurately sense light levels. Perhaps a lux sensor that could communicate with the analog input of the Arduino....

Thanks!

Most simple photo sensors generally require external components if you wish a linear signal over a range that covers the Adruino analog input voltage range of 0-5vdc.

Here is a very precise optical sensor that can be configured for sensitivity, however you have to read it as a digital input signal measuring it's frequency output rather then just using a simple analog input.

Lefty