Re: [APML] March results

[Jerry Lodriguss <jerry@astropix.com>]

Hi Jeff,

Wow, what a great set of pictures!

Love those tiny stars in the Rosette h-alpha shot! Great nebular resolution 
and separation also. Wonderful.

Looks like you has some pretty good seeing on that Aristarchus shot.

Jerry





At 07:26 PM 3/22/2003 -0500, you wrote:
>Hello all,
>Hope all is well.  Finally getting finished on March.  We have had a very
>nice break after a rough winter.
>
>The first image is mainly a test of a new Pentax 300mm lens for the 6x7.  I
>shot this wide open at f4.  The image I am linking to is a crop of the most
>interesting part of the image.  The winter Milky Way with a nearly quarter
>moon is not the best time for this lens.  I am intending to use it this
>summer on the Milky Way.  There is definitely some coma in the corners, but
>not too bad.  I focused with my usual loop on the screen and found a spot
>just barely shy of the infinity mark to be about right.  These images were
>from 10-30 minutes in duration.  I am hoping to expose a little longer at
>New Mexico skies.
>
>http://www.astro-photography.com/rosette_cone.htm
>
>
>I shot some Halpha of the swiftly moving winter Milky Way objects and was
>left with my TV101 on the mount as the galaxies came rolling across the sky.
>So, I shot some wide field galaxy shots.
>
>This is an RGB from PPF with ST10 CCD of M81/82.  Be easy, it is only 540mm
>focal length.  I found the analog gain adjustment with the Nikon scanner to
>be of use again.  I scanned the negatives with two different settings which
>gave me two different core exposures to work with.  It was like layering CCD
>image data from the same exposure.  That is one big advantage I have found
>with CCD data.  The ability to stretch the 16 bit data and save at various
>intervals and then layer the darker stretches on top of the brighter
>stretches of the same image is very easy.  The analog gain feature is useful
>for film in the same manner.
>http://www.astro-photography.com/m81_lrgb.htm
>
>Here is a black and white M51.  There seems to be a large concentration of
>small galaxies to the right of the bright star.  The 100% enlargement shows
>this better.
>
>http://www.astro-photography.com/m51_small_wide.htm
>
>100% enlargement
>
>http://www.astro-photography.com/m51_large_wide.htm
>
>I enjoyed some actual viewing thru the AP 130f8 the other night.  It was
>awesome to look thru an eyepiece again.  But, I just had to put a camera on.
>I went with the digital camera.  Now, I am waiting for some slides and print
>film to be processed of the Moon I shot the same night.  I am hoping to
>catch the subtle lunar colorations.  I will post next week with a digital
>vs. print/slide film comparison on the moon.  I wanted to get a large print
>from the film/slide, but may be forced to rez up the digital camera file if
>it wins in overall sharpness.
>
>This is a fully automatic shot with the Nikon 995.  I only applied unsharp
>mask.  I think the coloration in Aristarchus is quite detectable.  I felt
>that this processing captured the Moon as I saw it visually.
>
>Full Moon
>http://www.astro-photography.com/natural_fullmoon.htm
>
>Aristarchus close-up
>
>http://www.astro-photography.com/aristarchus.htm
>
>Jupiter processed to capture the view through the eyepiece that I had this
>night.  I had a chance to use ImagesPlus on the stacking of these images and
>it is extremely easy to do.  Thanks to Mike Unsold for a great program.  I
>look forward to learning more about it.
>
>http://www.astro-photography.com/jupiter_march.htm
>
>
>I did not think I was going to get this object, but windows opened for
>Rosette in Halpha.  I tried putting color from film with this and it just is
>not working out.
>
>http://www.astro-photography.com/rosette_halpha.htm
>
>I shot the Cone region in Halpha and only got about 2 hours which does not
>seem to be enough to process the way I would like.
>
>Hope you like them.  Any comments welcome.
>
>Jeff Ball
>www.astro-photography.com
>
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