Re: Eyes vs Digicam in SCT Imaging

On Apr 22, 1:31 pm, Chris L Peterson <c...@xxxxxxxxxxxxxxxxxx> wrote:
On Tue, 21 Apr 2009 21:14:10 -0700 (PDT), Eugene <eugenhug...@xxxxxxxxx>
wrote:

Now to tie it up to sky photography. When using the
image 60X image (taken with your 3000fl scope)
in my computer and zooming it, the magnification
can be greater. This is what astrophotographers
consider and do. They simply love to zoom to
see the pixels to arrive at the true resolution. Agree?

Not really. Any imagers, of the sky or otherwise, will often study their
images at whatever size is necessary to see the most possible detail.
Neither normally refer to absolute magnification (like 60X) when they
work with images, because it is meaningless and confusing.
_________________________________________________

Chris L Peterson
Cloudbait Observatoryhttp://www.cloudbait.com

But without the pixel or digital capability and using simply
analog film 35mm camera.. one can refer to it as 60X
when the analog camera is used in your 3000mm fl
SCT, isn't it. So telephoto with 50mm as 1X and
100mm as 2X and 3000mm as 60X is valid only
for analog film where there is no way to look
at the details because of the resolution limit of
our eyes unless the image is blown up to portrait size
(to bring out more details and it is here that
mere magnification is not enough). Right?

Anyway. Do you believe that any details that our
eyes can see such as 400X in jupiter can also
be seen by the digicam?? Or are there details
where only our eyes can see that can't be
seen by digicams (in the same scope)?

E
.

Relevant Pages

  • Re: Tal 2m or Explorer 150/200?
    ... The scope seems to bear some ... The eyepiece screws,should make no difference to the focussing. ... > observing but the chaps at Telescope House stillreckoned it would ... > tempting to push the magnification beyond the 10mm Plossl and 2x Barlow ...
    (uk.sci.astronomy)
  • Re: Help w/ a Galileo 1000mmx120mm, mars observation
    ... >You are indeed correct that 400x is too much magnification. ... This means the scope would ... The best viewing is when it is nearly overhead. ... >When conditions are bad for viewing the planets, that is the time to go ...
    (sci.astro.amateur)
  • Re: true magnification of Televue 3x?
    ... do have the JMI installed between the scope and the Televue, ... image scale was smaller than with the 3x barlow. ... Powermate 5x (and thereby get less overall magnification once the filter ... these are effectively complete 'scope' assemblies used to ...
    (sci.astro.amateur)
  • Re: Viewing by eye versus astrophotography
    ... achieve a high effective exposure time, ... Is that where the scope tracks on both axis, in case you haven't pointed the scope correctly at the Pole? ... magnification is presumably determined by the focal length of the ... For high resolution, with the sort ...
    (sci.astro.amateur)
  • Re: making my own telescope type magnifiers?
    ... the Opti-Visor and their ilk all bug my eyes. ... Remove one object glass (the big ... Mount this lens just in front but not touching the other ... The magnification will depend on the eyepiece fitted - usually ...
    (rec.crafts.metalworking)