Thank you for the detailed help,i didnt realize i needed to stop down for
AP shots so i heeded your advice & took some shots of the moon this
morning and shot at varying F stops & to my surprise got a quite detailed
shot of the moon at F8.In post i cropped the imagewith a bit of sharpening &
contrast and i was rather pleased with the outcome shot at 300m,i also
took some star shots at 300mm and found that even a 5 second exposure
will produce some star trailing but only noticeable when zoomed in on my
pc software ( these shots were taken on a tripod with mirror lock & 10
second delay, without the VP attached).You can see the lunar shot @
https://www.flickr.com/photos/146733...h/32041996234/
Focusing on the stars was a bit tricky and with the Tamron 70-300mm
i found that manually adjusting not to infinity but creeping down to the L
was spot on.The other lenses i will have to experiment with in time.
I will look forward to shooting wide milky way shots without landscape
when conditions are right but i know its going to be a little tricky when
the VP is pointing to the SCP, im just thinking the sigma 24mm (38mm)
on my aps-c will be the best lens for this...............Thx Kev