how many seconds should i expose 100 iso black and white film at night, when looking at the city and stars?

Question

i used 100 iso black and white film at f8 when taking pictures of the city at night. i exposed the film for 25 seconds, and when i developed it, i only got a thin black line from the city lines. What would be the correct amount of time i should expose the film for. Also, any recommondation for fstops. nd one last thing, how long should i expose the film for and what f stop should i use if i want to take pictures of the stars?

Update:

ok i lower f stop and increase iso but how many seconds do i make my exposure for

keerok · Accepted Answer

http://www.photohowto.info/how-take-photographs-night-sky
http://asa100.com/blog/?p=372

Mr White · Answer

I never used film before but you might try your luck with the "EV as an indicator of camera settings" & "Tabulated exposure values" over here: http://en.wikipedia.org/wiki/Exposure_value

A ❤ ABCA Border Collies, not AKC! ❤ · Answer

You'll need to lower that f-stop and raise your ISO.

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how many seconds should i expose 100 iso black and white film at night, when looking at the city and stars?

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