Astronomical ISO test (lots of comments!)

Started Jan 29, 2013 | Discussions thread
just Tony Senior Member • Posts: 1,769
Lumicon Minus Violet filter?

This could knock out quite a bit of that blue fringe.

The Zeiss 100mm at f/4 wouldn't mind looking through a 72mm diameter filter.

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow