Hi Rod and Chris - Rain and clouds here ;-)
I agree and that is why I was commenting on why more people haven't
seemed to care. If more people cared, then I think you would have
seen a bigger response in this group and others.
And Chris - Excellent pics!
Again here is why I think it is not a big issue for most...
1) It only shows up in some astrophoto shots, of some scopes, and
has no effect on visual performance.
2) It is seen in a variety of scopes, brands, and models.
3) It is not all that objectionable to some people.
4) There appears to be two fixes for the issue; Use a slight
aperture mask, or contact WO's excellent customer support and return
Here's another excellent site of astrophotos
Take a look at NGC 2024, the Flame Nebula, it's beautiful to me, in
spite of some slight dark lanes.
--- In William-Optics@yahoogroups.com
, "Rod Mollise" <rmollise@...>
> You and me both. IMHO, it doesn't amount to a hill of beans.
> Must be a lot of folks with cloudy skies. ;-)
> Rod Mollise
> Author of:
> Choosing and Using a Schmidt Cassegrain Telescope
> The Urban Astronomer's Guide
> From: William-Optics@yahoogroups.com [mailto:William-
> On Behalf Of Chris Appleton
> Sent: Sunday, April 01, 2007 12:07 PM
> To: William-Optics@yahoogroups.com
> Subject: [William-Optics] Re: Dark Line, Spikey Star Problems
> --- In William-Optics@ <mailto:William-Optics%40yahoogroups.com>
> yahoogroups.com, "Rod Mollise" <rmollise@>
> Hi Rod
> I know you have been in the hobby much longer than me which I
> and I thank you for confirming this dark line issue involving other
> brands/types of scopes. I wish this topic would just fade away and
> the negative talk about the WO scopes 110 & 132 and the praising of
> TMB & TEC would please stop.
> Best to all!
> Chris Appleton
> > Common? I'll say. I've noted this same effect in some film images
> I've taken
> > over the years which include very bright stars. Images taken in
> > Peace,
> > Rod Mollise
> > Author of:
> > Choosing and Using a Schmidt Cassegrain Telescope
> > and
> > The Urban Astronomer's Guide
> > <http://skywatch. <http://skywatch.brainiac.com/astroland>
> > _____
> > From: William-Optics@ <mailto:William-Optics%40yahoogroups.com>
> yahoogroups.com [mailto:William-
> Optics@yahoogroups. <mailto:Optics%40yahoogroups.com> com]
> > On Behalf Of Chris Appleton
> > Sent: Sunday, April 01, 2007 10:34 AM
> > To: William-Optics@ <mailto:William-Optics%40yahoogroups.com>
> > Subject: [William-Optics] Re: Dark Line, Spikey Star Problems
> > --- In William-Optics@ <mailto:William-Optics%40yahoogroups.com>
> > yahoogroups.com, Daniel Janosick <danjanos@>
> > wrote:
> > Danny, they are more common I agree with Timm. There was a very
> > recent discussion on the Uncensored Tak group (I am a member
> > also) in regards to these dark lanes showing up with the new Tak
> > refractors.
> > Chris A