NEX5n: Shutter Delay Observed on Long Exposures

TI'm thinking for a time lapse of the Milky Way I wouldn't need to take but 1 shot every 5 minutes. I'll have to do some more research.

Unfortunately, I don't have access to Photoshop nor the capacity to probably learn it.
I'll keep Long Exposure NR turned on.

Thanks again.

Kelvin