I personally don't much like overexposed t-grain films, even when underdeveloped. However, Delta 100 is very tolerant of overexposure, and I like underexposure far less. The idea then is to use the minimum exposure that captures all the shadow detail I want. Rating it at 100 works for me. For your metering technique, etc, you might (or might not) find that rating it at EI 64 is better. Similarly, you might or might not find that changing the development time is beneficial. Try it and see.(posted 9137 days ago)