• BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

    Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Search results

  1. B

    Harpia Extender

    Thanks Henry. Yes it is true that night time planetary observations are quite different to bright daylight observations. I could resolve Mizar with the Canon 10x30 IS at 14.4 arcseconds unequal double, but realise that in daylight with ball bearing stars I could probably do better. I was quite...
  2. B

    Harpia Extender

    In my experience increasing the magnification beyond the point where full detail is seen is of considerable benefit. It makes the detection of hidden detail more likely. Just barely using the minimum full detail magnification does give a brighter image, but does not reveal all there is to be...