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Proper "rule" for pinpoint stars with M43

Started Oct 27, 2016 | Discussions thread
Gary from Seattle Veteran Member • Posts: 7,852
Re: Proper "rule" for pinpoint stars with M43
3

Here is what 17mm at 20 seconds looks like facing due south. Although I see some movement of the stars for me this is an acceptable result. This is a minimally processed OOC jpeg. Using 12mm at 20 seconds as the OP said the star motion is minimal.

The limitation on the one end is star motion but on the other it is minimum exposure and noise. I most often shoot either the 12-40 at 12mm or the Oly F1.8 8mmFE. I generally shoot 20 seconds with the former because I know it is safe and 20 seconds also with the 8mm FE because I really don't need more exposure. With the 12mm I shoot at ISO 2000 to 3200 and with the FE at ISO 1000 to 1600 (with the latter being ideal).

 Gary from Seattle's gear list:Gary from Seattle's gear list
Olympus E-M1 Olympus E-M1 II Olympus OM-D E-M1X Olympus Zuiko Digital 1.4x Teleconverter EC-14 Olympus M.Zuiko Digital ED 75-300mm 1:4.8-6.7 +7 more
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