Dave
Certainly quality microphones will give improved results in most
cases. Whether the expense is worth it is up to you. In my experience
any true paraboloid with the microphone at the focal point is
greatly superior to "almost paraboloids" including bowls, umbrellas
etc. The Edmund Scientific parabolic mirror is the only one that I
have bought and I have been using it for almost ten years. I use the
18 inch version which seems to capture the frequencies of the birds I
record quite well. Besides the Condenser Mic (RS 270-092) that I
mention on the web page I have used the stereo Clip-on Microphone (RS
33-3028) and Panasonic WM-61B capsules arranged as a stereo pair. The
all give equivalent results.
My first "parabola" was an unmodified squirrel baffle with a cheap
dynamic mic at the focus. Since then I have constructed a die/mold
for a 20 inch parabola and have used it to create parabolas from
fibre glass, plexiglass, and plastic squirrel baffles that were
orginally almost true paraboloids.
For light travel I usually use one of my homemade parabolas. But I
still like the Edmund when mobility is not a problem. It is slightly
heavier and "gongs" when bushwacking.
Greg Kunkel
--- Dave J <> wrote:
> Ha! Hi Greg, I started at your webpage after a Google search and
> came
> here for opinions. Can you tell me how much these weigh and/or
> whether they are much of an improvement over parobolic
> approximations
> such as pet dishes or umbrellas?
>
> Rather than the mic element shown in your diagram I would suspect
> most people here would suspend a quality microphone out front.
>
> Thanks,
>
> Dave
>
> --- Gregory Kunkel <> wrote:
> >
> > Yes.
> > See my webpage:
> > http://ourworld.compuserve.com/homepages/G_Kunkel/microphone.htm
> >
> > --- Dave J <> wrote:
> >
> > > Anyone use these reflectors?
> > >
> > >
> >
>
http://scientificsonline.com/product.asp?pn=3D3053875&bhcd2=3D1091377378
> > >
> > >
>
>
>
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>
>
> "Microphones are not ears,
> Loudspeakers are not birds,
> A listening room is not nature."
> Klas Strandberg
> Yahoo! Groups Links
>
>
>
>=20
>
>
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