Very nicely done, Moose. Best I've seen.
On 5/11/20 4:40 PM, Moose wrote:
Back in 2012, for another of the endless "Supermoons", I used my Canon
60D with a Meade 1000/11 mirror lens. Gear details below.
I just reprocessed one of the shots using software not available then.
I think this illustrates pretty well the amount of detail easily
thought lost to lens failings, subject movement, air movement and low
contrast.
<http://www.moosemystic.net/Gallery/tech/Process/Lunacy/Lunacy.htm>
Quoting from my post then:
"I suspect this is close to the limit of what may be done from near
sea level on a warmish night for a whole moon shot. The moon is
already 72% of image height, so more magnification won't buy much.
In live view, magnified, I could watch the wavering from air movement
(as well as the surface moving by). To determine which image was
sharpest, I stacked them as layers in PS. Flipping between them, I was
surprised at the amount of difference in the shapes of features
between them. Clearly the air cells I was shooting through do more
than soften, they distort, as well.
Here's the set-up that worked.
<http://galleries.moosemystic.net/MooseFoto/index.php?gallery=Tech/Misc&image=IMG_0419croof30.jpg>
More detail.
<http://galleries.moosemystic.net/MooseFoto/index.php?gallery=Tech/Misc&image=IMG_0420croof30.jpg>
You might well ask what's with all that stuff on top of the tripod. I
couldn't unscrew the 3/8" to 1/4" adapter from the bottom of the 410
geared head, nor locate my easy-outs. So I stacked the 410 on top of
the 3047. I figured that would give me the advantage of higher
elevation angle, as well, although as it turned out, I might not have
needed it. All that load on the 3236/3047 is not a problem.
I tend to remember only how heavy the 3236 tripod is, and forget what
a great piece of equipment it is. I only needed two of the three leg
sections, leg angles may be individually locked at any angle and the
thing is SOLID.
Rather than calculate or look up shutter speeds, I simply bracketed
shutter speeds. As you can see, 1/60 was plenty. I couldn't see any
sharpness/detail difference with higher speeds, and other IQ factors
were poorer.
Looney Moose "
On 5/11/2020 12:37 PM, Charles Geilfuss wrote:
Thanks for the info, Moose, and you could be right. I have only
shot with
it on a tripod (Manfrotto aluminum with Markins ball head). I've
taken some
pretty good images in the daytime, mostly wading birds, and as you point
out the contrast is low. But that easy to fix in Photoshop. In moon
shots,
the image looks tack sharp in Live View and in the view finder but the
images are soft. I use a two second delay but the mirror seems to induce
camera shake. I may try mounting it on my telescope tripod which weighs
about 35 pounds.
--
Jim Nichols
Tullahoma, TN USA
--
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