I'd recommend the Fringe-Killer. The C-B will make the images a little less
bright and yellowish in tint so for your 120mm refractor with imaging in
mind, the F-K makes more sense.
Author of "The NexStar User's Guide"
Author of "NexStar Observer List"
] On Behalf Of Mircea
Sent: Thursday, November 24, 2011 4:08 AM
Subject: [Baader-Planetarium] Re: Contrast Booster vs Fringe Killer
I'm also fishing around for info on what choice to make - F-K or C-B (2")
I have a 120mm f/8.3 Skywatcher refractor and at high powers the magenta
'glow' is rather annoying for my eyes/brain; also at longer exposurea using
a DSLR in prime focus it's still a drag around brighter stars - luckily the
RAW software allows for some axial CA correction that works pretty well, but
it would be nice to reduce it before capture.
What would you recommend from those 2 (only one filter)? :)
--- In Baader-Planetarium@yahoogroups.com
, "Michael Swanson"
> Hi guys,
> The Contrast-Booster is actually a filter with the coatings of both the
> Fringe-Killer and the Moon & Skyglow filter combined. So, you get
> minus-violet correction for achromatic refractors plus improved contrast
> solar system objects.
> The fact that the C-B blocks more light is why some would recommend only
> using F-K with smaller refractors. And, the C-B has a more pronounced
> yellow tinge so photographic use would require additional image
> For visual use, the C-B or the F-K coupled with the M&S really brings out
> significantly more detail on solar system objects. The F-K or the M&S by
> themselves also improve detail in an achro refractor, though for different
> reasons - reducing false color for the F-K, tailoring the light curve and
> moderate violet filtering for the M&S. In fact, I generally use the M&S
> solar system objects even in my 11" SCT which has no chromatic aberration
> issues - it improves contrast on solar system objects in any scope.
> Best regards,
> Mike Swanson
> Author of "The NexStar User's Guide"
> Author of "NexStar Observer List"
> -----Original Message-----
> From: Baader-Planetarium@yahoogroups.com
> [mailto:Baader-Planetarium@yahoogroups.com] On Behalf Of Bill Pearce
> Sent: Thursday, September 29, 2011 8:00 PM
> To: Baader-Planetarium@yahoogroups.com
> Subject: Re: [Baader-Planetarium] Contrast Booster vs Fringe Killer
> I have the 2" fringe killer, and I really like it. I use it on my 110ED
> good results all around. I had to create a preset in Lightroom to take the
> slight yellow cast out of my images of deep sky objects. For Lunar and
> Planetary, it's really nice. Baader suggests stacking the fringe killer
> the Moon & Skyglow filter. I haven't used the contrast booster, but am
> it's still a good filter to keep in the "toolbox". I think I'm going to
> the Moon & Skyglow next.
> With that said, I'd probably go for the fringe killer. You can see the
> images I took of comet Garradd using the fringe killer (after processing)
> Hope this helps,
> On Sep 28, 2011, at 21:33, "mdaulton33" <mdaulton33@...> wrote:
> > Hello all,
> > I'm new to this group and I have a Baader question that I hope someone
> help me with. I just purchased a Burgess 1278 5" f/8 refractor. I also
> puchased a Fringe Killer filter but the person I baught it from sent me a
> Contrast booster filter (He thought they were the same filter). My
> is should I return the Contrst Booster filter and buy a Fringe Killer or
> will the Contrast filter do close to the same thing? I'm just looking to
> reduce false color with Lunar and Planetary observing. Any advice???
> > Thanks,
> > Marshall
> [Non-text portions of this message have been removed]
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