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Re: [OM] Moon Shot

Subject: Re: [OM] Moon Shot
From: "Johnie Stafford" <jms@xxxxxxxxx>
Date: Sun, 25 Aug 2013 17:50:57 -0500
> -----Original Message-----
> From: Moose [mailto:olymoose@xxxxxxxxx]
> Sent: Sunday, August 25, 2013 2:53 AM
> To: Olympus Camera Discussion
> Subject: Re: [OM] Moon Shot
> 
> On 8/22/2013 7:09 AM, Chuck Norcutt wrote:
> > Strange.  The larger 2755x2066 images (which are only displaying at
> > about 50% size on my screen) make the moon appear as though it's
> > covered by teeny-tiny pock marks.  I assume this is some sort of
> > digital noise or artifacts from display conversions.  Do you see that
> > in your originals, either the full resolution image or the 5+ MP JPEG
> > image that you uploaded?
> >
> > Actually, I just realized that what I'm seeing at 2755x2066 must be a
> > 1:1 crop out of the full frame.  At 600mm (300 + 2X converter) the
> > image size of the moon is only about 1/4 of the 4/3 frame height.
> > Maybe ACR can remove that "noise" in its noise removal step... the one
> > where you're told to review at 100% or greater.
> 
> There's something wrong here. That level of 'noise' is just not what the
E-M5
> does at ISO 200. Could be some combination of brightening underexposure
> and/or over processing without prior NR. It has the 'wormy' look of such.
> Maybe too much LCE (Clarity slider in LR)?
> 
> Moon shots have a very narrow DR for the moon itself. First steps that are
> often useful are NR and using Levels to spread the histogram and set the
> midpoint.  Then fewer other adjustments are necessary.
> 
> Those two steps alone, on a small JPEG already over processed in some way,
> make a dramatic improvement in this image.
> 
> Level Headed Moose

No Lightroom at all. At the time all I had was Olympus Viewer. I'm just
trying to learn how to digitally process images. I got my copy of LR late
this week and that just gives me more options to get my arms around. Now
give me an enlarger and some trays and I could probably make something nice
out of a moon shot. 

So I appreciate any and all digital processing advice. Speaking of which,
there are a million resources out there for how to process raw images. Could
I get some recommendations?

TIA

Johnie Stafford
McKinney, TX
jms@xxxxxxxxx


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