Now and then, I miss the discipline of film photography...you've heard that before, right? Film and developing costs were a great incentive for getting the shot without a lot of trial and error type fooling around. Digital makes it easy...take the shot, check it out on the back of the camera, make an adjustment or two, shoot again and then check it again...repeat as necessary! With film, it was a pretty common practice to bracket (shoot the scene with different exposures) but you still never knew what you had till the film was developed. A good light meter made things much easier and saved a lot of expensive film and development costs...a good meter would pay for itself pretty quickly. My Sekonic 508 doesn't see nearly as much use as it did in times past but I still use it pretty often and it pays it's way in other ways now...it saves time. It's great for figuring flash exposures, for determining dynamic range in a scene and for finding 18% neutral reflectance. Cameras have pretty good meters built into them these days but they won't do what a dedicated meter, like this one, will. It will spot meter down to 1 degree or meter incident light. Most high end cameras have spotmeters but they generally cover 10 degrees or more and all built in meters measure only reflected light, not incident (ambient) light. Most built in meters are very good but, you know, they have their limitations. Precision spot and ambient meters have a big limitation too...they'll give you the information you need, but they leave it up to you on how to use that information...I'm still learning.