Thanks everyone for the great feedback! This is still a work in progress. The negative has a lot of latitude and I keep wanting to go back to it and correct (dodge and burn) some things.
Todd wrote:
Yeah no noise but you will have Reciprocity failure which is worse! Beautiful photo.
Thanks again Everyone!
Todd, Reciprocity Failure is a non-issue with modern films. This image was made with Neopan Acros 100 B&W film. The reciprocity chart calls for an additional 1/2 stop for exposures between 2 and 16-minutes. On a 4-minute exposure, the added factor is 2-minutes for 6-minutes total. On the other hand, if you used NR with digital, the same exposure would take 8-minutes .
scott bye wrote:
How can you figure out the correct time without over or underexposing
With long exposures, when the light is constant it's a non-issue - go wit the original reading. The only way to know if it's constant, unless you're imaging at noon, is to take additional readings as the exposure progresses. With sunrise the exposure will always be shorter than the original reading and vice--versa for sunset. The key is to have a separate meter as the exposure progresses. When using an SLR or DSLR, you're locked to the exposure because you can't meter while the image is being made. so a handheld meter is a must for these. You have to make judgements on the fly as the exposure is being made and there are no steadfast rules. Metering during the exposure will tell you what to do but it is more of an experience thing.
