- Read about NIKON D80 vs NIKON D50 amp glow at long exposures

- Read Part 2 about NIKON D80 amp glow at long exposures 

- Read about Nikon D80 suitability for long exposure astronomy and comparison to D50. (by Duncan Munro)

- Download (zipped) Nikon D50 High / Low / Normal contrast curves  and  D200 high ontrast_v3[1].2

- Read a visit to Ottawa - few photos and a rant.