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Milky Way Exposure Times

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#1 ???

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Posted 22 June 2021 - 08:35 PM

I'm going to try getting some shots of the Milky Way next month, and I'm curious what exposure times would be suitable, and whether I should piggyback and guide, or if the exposures will be short enough to attach the camera directly to the mount (CEM25p) via dovetail and only track. I will be at a IDSP site and should have awfully clear skies, weather permitting. 

 

What might appropriate exposure times be for the Milky Way using Zuiko 35mm f/2, 50mm f/1.8, and 135mm f/3.5 lenses with 400 iso color film? 


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#2 Sky King

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Posted 22 June 2021 - 09:01 PM

  Here's an interesting article about photographing the Milky Way. Not about film cameras in dark skies however... Good luck.


Edited by Sky King, 22 June 2021 - 10:37 PM.


#3 Michal1

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Posted 23 June 2021 - 06:16 AM

This is hard to say without knowing the film you will be using and the quality of your sky. Here you can find some inspiration:

https://www.astro.cz...Praktica 35 mm/

You will need to experiment. Generally, it is good idea to stop down your lenses a bit.


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#4 TxStars

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Posted 24 June 2021 - 08:57 PM

I always guide just so I don't forget to do it later

Under good dark skies 10 min is a good starting point at f/2.8  .And 20 min  at f/4 

Do a second exposure at 20min at f/2.8 and 45min at f/4 (this will test just how dark your skies are)

I would use either  Kodak Ektar 100  (print)  or Ektacrome 100 (slide) or both if you have time..

So far faster film has only given me more grain and no extra stars or details..  YMMV


Edited by TxStars, 24 June 2021 - 09:00 PM.

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