Re: [APML]: Color Film and Filters

[aa6g@aa6g.org (Chuck Vaughn)]

>------------------------------------
>Now, I 
>distinctly remember an article in S&T or Astro. a few years back stating that a DS 
>makes everything red on color film - stars and all. Has color film changed that much 
>over the years, or am I loosing my mind (the most probable answer <G>)?

A Deep Sky filter is pretty much a bi-color filter in that the filter eliminates
most of the light that would record on the green layer. If the stars are bright
enough they will print as white. With the green gone a lot of stars end up red
or white with red halos. Some end up too blue.

This is what I was hinting at before, you have to ignore incorrect star colors
with a DS filter and look at the nebula.

I pulled out the AMOACP. There are some red stars in those photos but it's
really hard see them in the book. All I can say is that color photography has
come a long way since Jack Marling took those photos! I hope in 10 years we
can say the same about the photos we're doing today.

Chuck  <aa6g@aa6g.org>