HP5 at ISO1600

[Bill Burk]

The problem with your test is that most likely you under-exposed your negatives by more than two stops - your meter was fooled by the highlights that were in your scene into setting an exposure that was more than two stops insufficient. That is a common problem...

This is a simple explanation for what probably happened.

 

[RattyMouse]

Ok, now I know what to try next time. Thank you!