I am new to large format and need some advice.

I shot 4 images with my 5X7 Korona View camera on Ilford B&W film, then sent them off for developing and "enhanced" scanning.

Upon return, I received the negatives as well as a CD with the images. To my surprise, the scanned negatives were all about 2.1MB files.

Is this small file size normal? In my mind I was thinking they would be much larger since the negative is so large.

What am I missing? Help!