Taking The Long Way Home With Nikon!!

On Jan 2, 3:31 pm, Scott W <biph... RemoveThis @hotmail.com> wrote:
>
> Telescopes are good for what they are good for, subjects are not
> moving much and where you have a long time to mess with the focus.
> But a telescope is not a replacement for a photographic lens.  Add to
> the camera lens image stabilization and there are even more cases
> where the telescope is simply not going to be useful, compared to a
> real camera lens.

When I go up to view the sandhill cranes there is usually at least one
person there with a Leica spotting scope or something similar. While
the optics are probably as good as it gets for spotting scopes, there
is usually lots of vibration from the wind even though they are tripod-
mounted.

How does one go about connecting a DSLR to one of these scopes?
I have a EOS T-Mount I could use. Do you shoot through the scopes
eyepiece or does the camera replace the eyepiece? Eyepiece projection,
I think they used to call it back in my telescope days.
 >> Stay informed about: Taking The Long Way Home With Nikon!! 

On Jan 2, 12:08 pm, Annika1980 <annika1... DeleteThis @aol.com> wrote:
> On Jan 2, 3:31 pm, Scott W <biph... DeleteThis @hotmail.com> wrote:
>
>
>
> > Telescopes are good for what they are good for, subjects are not
> > moving much and where you have a long time to mess with the focus.
> > But a telescope is not a replacement for a photographic lens.  Add to
> > the camera lens image stabilization and there are even more cases
> > where the telescope is simply not going to be useful, compared to a
> > real camera lens.
>
> When I go up to view the sandhill cranes there is usually at least one
> person there with a Leica spotting scope or something similar.  While
> the optics are probably as good as it gets for spotting scopes, there
> is usually lots of vibration from the wind even though they are tripod-
> mounted.
>
> How does one go about connecting a DSLR to one of these scopes?
> I have a EOS T-Mount I could use.  Do you shoot through the scopes
> eyepiece or does the camera replace the eyepiece? Eyepiece projection,
> I think they used to call it back in my telescope days.

You can go either way. I believe if you don't use the eyepiece to
project the image you need an adapter with some optics in it. I use
to do this kind of thing with microscopes and had two setups, one was
an adapter that looked like a Nikon lens on one side and on the other
slid in where the eyepiece would go, the other set up used larger film
and a very long camera using the eyepiece to project the image onto
the film.

A big problem that I see if focusing, the telescope is running at a
fairly slow f/number and is manually focused. The slow f/number makes
it harder to manually focus, compared to a lens that is fairly open
when focusing and then stops down when the photo is taken. This is ok
if you are photographing the moon but for the things I normally
photograph not so good.

A telescope is not a bad way to go to get a very long lens cheap, but
it has a lot of limitations that go along with it.

Scott
 >> Stay informed about: Taking The Long Way Home With Nikon!! 

In rec.photo.digital Annika1980 <annika1980.RemoveThis@aol.com> wrote:
> On Jan 2, 3:31?pm, Scott W <biph....RemoveThis@hotmail.com> wrote:
>>
>> Telescopes are good for what they are good for, subjects are not
>> moving much and where you have a long time to mess with the focus.
>> But a telescope is not a replacement for a photographic lens. ?Add to
>> the camera lens image stabilization and there are even more cases
>> where the telescope is simply not going to be useful, compared to a
>> real camera lens.

> When I go up to view the sandhill cranes there is usually at least one
> person there with a Leica spotting scope or something similar. While
> the optics are probably as good as it gets for spotting scopes, there
> is usually lots of vibration from the wind even though they are tripod-
> mounted.

> How does one go about connecting a DSLR to one of these scopes?

It's much cheaper connecting a P&S with a small sensor to it, because
these scopes have optics and exit pupils designed for a human eye on
the end of it, and a small P&S lens and sensor is a much closer
approximation to that in optical and physical terms than a DSLR. This
is one kind of application in which for the same investment you'll get
a better higher quality higher resolution image out of a P&S than a
DSLR

But if you want to use a DSLR there are plenty of telescope optical
converters available, varying in sophistication and price depending on
your purposes.

--
Chris Malcolm cam.RemoveThis@infirmatics.ed.ac.uk DoD #205
IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK
[http://www.dai.ed.ac.uk/homes/cam/]
 >> Stay informed about: Taking The Long Way Home With Nikon!! 

Rita,

Do you want to buy another 2X converter? I wish I had never bought the
P.O.S.

Mick Brown


On 2/1/08 9:32 AM, in article 13nlg58sb483sdf.RemoveThis@news.supernews.com, "Rita Ä
Berkowitz" <ritaberk2O04 @aol.com> wrote:

> After having a great day out with the old Nikkor catching all the great
> action, I decided to take the long way home. I'm so glad I did since the
> old D3 wasn't ready to be tucked in just yet.
>
> <http://www.geocities.com/ritaberk2008/going_long.htm>
>
>
>
>
>
> Rita
>
 >> Stay informed about: Taking The Long Way Home With Nikon!! 

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 >> Stay informed about: Taking The Long Way Home With Nikon!! 

Softness,

In my profession, I need sharpness, and the 2X is just not acceptable. 1.4
is great though.

MB


On 3/1/08 10:08 PM, in article 13npgoog5sulc8.RemoveThis@news.supernews.com, "Rita Ä
Berkowitz" <ritaberk2O04 @aol.com> wrote:

> Michael Brown wrote:
>
>> Do you want to buy another 2X converter? I wish I had never bought
>> the P.O.S.
>
> Only if it gives me donut shaped bokeh when I stack it with my current 2x.
> Seriously, I do realize it is a compromise, but what do you find
> objectionable about it when used with the 400/2.8?
>
>
>
>
>
> Rita
>
 >> Stay informed about: Taking The Long Way Home With Nikon!! 

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