Francis Marion wrote:

Carlos:

For a first attempt I think those all look decent, congratulations.

Actually, it was not my first attempt at astrophotography -- it
was the first one with a digital camera. I had taken a few other
pictures using a film SLR camera, so I don't classify as an absolute
beginner -- but of course, I'm still far (very far) from being able
to claim that I'm an "expert" in astrophotography.

Some of the successful (and semi-successful) pictures are at:

http://www.mochima.com/personal

(those are all taken with my film camera -- a Nikon F80; most of
them using the telescope as the objective, except for the ones of
the Milky Way)


It looks like the camera offers good control over exposure, as with your
Jupiter over/under exposures.

Yes, the camera can be set anywhere between fully automatic (to
the point that it decides to pop-up the flash automatically if it
needs to) to fully manual. I used full manual for these.

The only difficulty with it is that the small LCD display doesn't
give you a lot of detail (for instance, I only could see Jupiter's
moons with the 1-sec exposure -- several other pictures did show
them, but I wasn't seeing them on the LCD display). Still, it is
much better than having to guess, as it is the case when shooting
on film.

What is the max resolution that is available on that camera? Were you using
it for these images?

It has a nice 3000 x 2000 resolution (6 megapixels). Yes, I was at
maximum resolution; with "High quality" JPEG compression, normal
images are about 2.5 Mbytes; but these, since 99.9% of the image
is just black, the files are usually below 200k or 300k

By the way, your Spanish is pretty good;-) I understood all of it!!

;-)

Well, it's good news that after 12 years living in Canada, the
area of my brain in charge of mother language is still operating
properly :-)

Cheers,

Carlos
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