I am new to large format photography and am looking into purchasing a light mete r. I would like to be able to use the meter with my 35mm system as well, and as a result am considering the Sekonic L-508 for its all around performance. I am looking for advice as to whether or not this is a wise choice? Does this meter function as a good spot meter for large format? How would you rate the perform ance of this meter? Does it seem to be accurate? Thank you for any input!!!