It might seem that all the scans are the same. Not. Kick inside to see a few differences and tips to understand a bit more about the proper scanning results.
Tried several labs with the same film and here is a part of results I’ve got. Several aspects are compared for simplicity, as in fact there are much more of to see and to learn.
First, for one scanning lab all the Fuji Velvia frames’ colors were magenta and red, while the other lab succeeded to squeeze the blue/red tints, giving much better look to the same frames. It’s a matter of color balance set correctly for a particular type of film.
Second, one of the scans is less contrast than the other. Which is better, since on the more contrast scan the faces are almost white, while on the negative everything can be seen.
Third, compare the sharpness. One scan is much sharper then the other.
Fourth, the crop. Some automatic scanners crop a picture for no sane reason.
As I’ve said, there is much more. You may like those results or another. If a mistake serves your frames well – nothing better can happen, but this might and might not be the case. In the latter option, I personally try to negotiate, to point out the error to come with a decent results. After all, labs’ job is to provide us the true analogue quality pictures from our negatives :)