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Main
Date: 28 Sep 2006 11:57:27
From: nuckdaily@gmail.com
Subject: new to sci astro
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i have a new hp photo smart 425 and i want to take some pictures with
my celestron c130mm telescope i was wandering should i be placing the
camera telescopic zoom barrel in the eypiece holder using focus on the
scope or what the
the telescopic zoom barrel on the camera fits the telescope eyepiece
holder perfectly all the rest of the cameras i looked out had a sloppy
fit
thanks bill
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Date: 29 Sep 2006 04:54:04
From: Matthew Ota
Subject: Re: new to sci astro
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I checked here:
http://www.scopetronix.com/wizard/step2.htm?brand=Hewlett+Packard&
for an adapter for your camera model. It is not listed.
Perhaps an adapter for a similar model will work.
Or, you can shoot afocally like Uncle Rod says. If you have a tripod
you can carefully place it so the camera is behind the eyepiece. Then
by using a shutter release cable you can take your photos. Do not try
shooting my manually pressing the shutter button on the camera as it
will induce too much camera shake. If you can control your camera from
a USB cable connected to a computer, it is even easier.
I see from your Celestron model number that you have a german mount
with a Maksutov SCT. If it has the standard rear cell threads then you
should have no trouble finding camera adapters.
You focus the telescope with the camera attached. It can be very
difficult, depending on how well your viewfinder or video display on
your camera works. You can make a cheap Hartman mask to focus on a
bright star.
Astrophotography is said to be the absolutely most difficult and
challenging field in the realm of photography, even more difficult than
taking studio portraits of children. If you are up for the challenge,
it can be a very rewarding part of your hobby.
Matthew Ota
nuckdaily@gmail.com wrote:
> i have a new hp photo smart 425 and i want to take some pictures with
> my celestron c130mm telescope i was wandering should i be placing the
> camera telescopic zoom barrel in the eypiece holder using focus on the
> scope or what the
> the telescopic zoom barrel on the camera fits the telescope eyepiece
> holder perfectly all the rest of the cameras i looked out had a sloppy
> fit
> thanks bill
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Date: 29 Sep 2006 02:19:33
From: RMOLLISE
Subject: Re: new to sci astro
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nuckdaily@gmail.com wrote:
> i have a new hp photo smart 425 and i want to take some pictures with
> my celestron c130mm telescope i was wandering should i be placing the
> camera telescopic zoom barrel in the eypiece holder using focus on the
> scope or what the
> the telescopic zoom barrel on the camera fits the telescope eyepiece
> holder perfectly all the rest of the cameras i looked out had a sloppy
> fit
> thanks bill
Hi:
What you need to do with this camera, which has a lens that can't be
removed, I believe, is shoot afocally. That is, you'll have an eyepiece
ahead of the camera. For simple shots like the Moon you can just point
the camera into the eyepiece and snap away. For more complicated ones,
well, many dealers sell attachments that will allow cameras to be
attached to eyepieces. Don't know if this is possible with your cam or
not.
Peace,
Rod Mollise
Author of:
Choosing and Using a Schmidt Cassegrain Telescope
and
The Urban Astronomer's Guide
<http://skywatch.brainiac.com/astroland >
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Date: 29 Sep 2006 11:28:07
From: oriel36
Subject: Re: new to sci astro
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Matthew Ota wrote:
> I checked here:
>
> http://www.scopetronix.com/wizard/step2.htm?brand=Hewlett+Packard&
>
> for an adapter for your camera model. It is not listed.
> Perhaps an adapter for a similar model will work.
>
> Or, you can shoot afocally like Uncle Rod says. If you have a tripod
> you can carefully place it so the camera is behind the eyepiece. Then
> by using a shutter release cable you can take your photos. Do not try
> shooting my manually pressing the shutter button on the camera as it
> will induce too much camera shake. If you can control your camera from
> a USB cable connected to a computer, it is even easier.
>
> I see from your Celestron model number that you have a german mount
> with a Maksutov SCT. If it has the standard rear cell threads then you
> should have no trouble finding camera adapters.
>
> You focus the telescope with the camera attached. It can be very
> difficult, depending on how well your viewfinder or video display on
> your camera works. You can make a cheap Hartman mask to focus on a
> bright star.
>
> Astrophotography is said to be the absolutely most difficult and
> challenging field in the realm of photography, even more difficult than
> taking studio portraits of children. If you are up for the challenge,
> it can be a very rewarding part of your hobby.
>
> Matthew Ota
>
Birdwatching would be far more challenging as a photographic endeavor -
http://www.birdwatching.com/
The birdwatchers have at least excellent information about bird
migrations and the seasonal cycles of arrivals and
departures,astrophotographers don't really care about anything other
than magnification.
> nuckdaily@gmail.com wrote:
> > i have a new hp photo smart 425 and i want to take some pictures with
> > my celestron c130mm telescope i was wandering should i be placing the
> > camera telescopic zoom barrel in the eypiece holder using focus on the
> > scope or what the
> > the telescopic zoom barrel on the camera fits the telescope eyepiece
> > holder perfectly all the rest of the cameras i looked out had a sloppy
> > fit
> > thanks bill
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Date: 01 Oct 2006 03:59:59
From: oriel36
Subject: Re: new to sci astro
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John Carruthers wrote:
> oriel36 wrote:
> > Matthew Ota wrote:
> > > I checked here:
> > >
> > > http://www.scopetronix.com/wizard/step2.htm?brand=Hewlett+Packard&
> > >
> > > for an adapter for your camera model. It is not listed.
> > > Perhaps an adapter for a similar model will work.
> > >
> >
>
> > >
> > > Astrophotography is said to be the absolutely most difficult and
> > > challenging field in the realm of photography, even more difficult than
> > > taking studio portraits of children. If you are up for the challenge,
> > > it can be a very rewarding part of your hobby.
> > >> > Matthew Ota
> > >
> >
> The resident deluded loon burbled..
> > Birdwatching would be far more challenging as a photographic endeavor -
> >
> > http://www.birdwatching.com/
> >
> > The birdwatchers have at least excellent information about bird
> > migrations and the seasonal cycles of arrivals and
> > departures,astrophotographers don't really care about anything other
> > than magnification.
>
> Hi Bill, welcome, you will also get sensible, practical, advice here.
> jc
Birdwatching photography is far more challenging than
astrophotography even though the equipment is the same.I love to hear
what birdwatchers have to say when I question them on my walks,not just
the naming of birds but where they have come from and where they are
going on their migrations.Look at the postings here, lots and lots of
images with little understanding for where the images fit into the
cyclical scheme of things other than purely celestial sphere
explanations.
It takes very little intuitive or intellectual intelligence to see how
the 24 hour day elapses into the next 24 hour day using the Equation
of Time correction made at noon and how astronomers used these two
pieces of information to keep axial rotation constant without the need
of any external reference.
Astrophotography should be complimentary to astronomy ,the images of
Jupiter and Saturn by Mr Tezel represent one of the greatest
achievements in astrophotography to date -
http://antwrp.gsfc.nasa.gov/apod/image/0112/jupsatloop_tezel.jpg
The ability to show the orbital motion of the Earth overtaking the
outer planets makes understanding Copernican reasoning so easy for
teenagers and adults and I have been the biggest promoter of
contemporary technology.
You call me one thing and another,but I am beside myself presenting
what productive opportunities exist once the silly 17th century errors
are dispensed with ,not just appreciating the great astronomers and
their insights but the better working principles for future generations
to work with.Get rid of celestial sphere geometry and a whole new
celestial arena opens up.
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Date: 01 Oct 2006 02:08:07
From: John Carruthers
Subject: Re: new to sci astro
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oriel36 wrote:
> Matthew Ota wrote:
> > I checked here:
> >
> > http://www.scopetronix.com/wizard/step2.htm?brand=Hewlett+Packard&
> >
> > for an adapter for your camera model. It is not listed.
> > Perhaps an adapter for a similar model will work.
> >
>
> >
> > Astrophotography is said to be the absolutely most difficult and
> > challenging field in the realm of photography, even more difficult than
> > taking studio portraits of children. If you are up for the challenge,
> > it can be a very rewarding part of your hobby.
> >> > Matthew Ota
> >
>
The resident deluded loon burbled..
> Birdwatching would be far more challenging as a photographic endeavor -
>
> http://www.birdwatching.com/
>
> The birdwatchers have at least excellent information about bird
> migrations and the seasonal cycles of arrivals and
> departures,astrophotographers don't really care about anything other
> than magnification.
Hi Bill, welcome, you will also get sensible, practical, advice here.
jc
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