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Saffa Ben

Saffa Ben

Member Since 12 Aug 2019
Offline Last Active Aug 14 2019 07:41 AM

Milky Way and Night Photography

12 August 2019 - 03:45 AM

I would like to try to take some night photography - specifically the milky way.  I do not want star trails, so am limited by the Rule of 500.  I have two lenses.  A Nikon 35mm f1.8 and a Nikon 10-24mm f3.5-4.5, and am shooting with a Nikon D7000.


Using the rule of 500 and the 1.5 crop factor, I know that the max exposure time I have before I get a star trail is about 9 seconds for the 35mm lens and about 33 seconds for the 10-24mm lens.


What I would really like to know is, is there a graph / chart that I can use to compare or tell me how much light would enter the lens, over the different exposure times, so that I would know what lens would be best to use?  Or put another way - would more light enter the 35mm lens at f1.8 over 9 seconds, than would enter the 10-24mm lens at f3.5 over 33 seconds?


I'm going to test both - anyway - but it would be nice to know.


Any advice appreciated.