A perfect neg ? Easy.
It records enough data to record my emotion of the moment,
in a form that lets me express the subject's details in a way
that creates a similar response in the viewer of the print.
It acknowledges that small errors are inevitable,
and that time is fleeting. Most importantly, it allows me to grow in wisdom
of the subject as I print the image.
Rather than aiming for a precise and specific redition of the subject,
a perfect negative creates a range of possible expression.
This usually translates to a negative of generous exposure,
and gentle development.
A perfect negative encourages clear vision and a simple technique,
it will make a fine and succesful print without agony darkroom drama,
and is not dependent on rare, unusual, or exotic materials.
A perfect negative can be made by any sized camera,
using common film, and will make a wonderful print on any paper.
With a Lab, you must be assured they have a default technique that never varies. Then, you need to learn how to use the product they will deliver to serve your ends. You will need to choose a film that is not skittish or difficult to work with, and capapble of a long straight line, for special development methods will be unreliable in all but a handful of labs.
You will need to adapt your shooting style to accomodate the gifts and strengths of the lab. Finally, you will need to compensate for the lab's nominal negative with your printing methods.
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