On 26/08/15 18:12, Jean-Luc CECCOLI wrote: > > That said, for astophotography i'd rather (I indeed do) use the camera > at its nominal sensitivity. > > Yours is 100 ISO, that's what you should use. 400 would be still good, > but 1600 is far too high. > > Yes, then you would need to use a motorized mount... but that's > another story. > >
This is not so clear, really --- it will depend a lot on the camera and its iso-variance. Look for example at http://photo.stackexchange.com/questions/12480/is-high-iso-useful-for-photography http://photo.stackexchange.com/questions/40188/longer-exposure-lower-iso-or-shorter-exposure-higher-iso-what-gives-better and anyway, without a motorized mount using low iso is practically impossible --- unless you want star trails. Romano -- Romano Giannetti http://www.rgtti.com/ ------------------------------------------------------------------------------ _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
