FL-D 49mm Photography Filter
the fifth annual Star Walk program in
most important and unusual aspect of the filter is the seemingly
miraculous way it brightens and yet increases the contrast of the surface
features on Mars. The initial impression I had was the planet lost some of
it's ruddy tan color and the dark maria stood out well. In comparison to a
Wratten #23A the contrast was increased and the planet was not dimmed
drastically like the light red filter usually does. This was a boon to the
smaller 8" aperture I was using. The Polar hood was still well
defined but the most striking thing was the dark mare jumping out at me.
star party was populated by over 30 experienced amateurs and each one that
I talked with commented about the increased detail in the filter. Most
were very surprised. The initial effect of the word of mouth in the
Dallas/Ft.Worth area was to run out and buy up all the local camera shop
supplies. The only problem is the 49mm filter will only work on a 2"
barrel EP with a step down 49-48mm ring and no Barlow. (the step down ring
is too large to allow it to fit inside the Barlow). I am anxious to have
my Sirius Optics filters so I can use them with a Barlow and the
1-1/4" format filter to work with my smaller but more powerful
orthoscopics and plossls. This should prove to be a great combination.
is an example of never knowing where the next big thing will come from.
Who would have guessed? For those out there with a curiosity to see Mars
at it's best in a smaller aperture, this is the key! My advise is to get
the filter when it becomes available and before it is gone.