Chris Calohan II
Member
Six Shot Vertical Pano stitched together in Photoshop
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Milky Way
- Thread starter Chris Calohan II
- Start date
Asher Kelman
OPF Owner/Editor-in-Chief
Beautiful and such clarity. But how long was each exposure and did you use a tripod?
Are other galaxies visible within that sky?
Asher
Are other galaxies visible within that sky?
Asher
Chris Calohan II
Member
14-24 @14mm, f/2.8, 16 sec per frame, tripod mounted. As to other galaxies...don't know. I am a photographer, not an astronomer 
Asher Kelman
OPF Owner/Editor-in-Chief
How do you know where to point the lens? Do you use software like14-24 @14mm, f/2.8, 16 sec per frame, tripod mounted. As to other galaxies...don't know. I am a photographer, not an astronomer
Photo Pills or the desktop application Stellarium?
Does one need to wait for a new moon to avoid moonlight making the capture of thr Milky Way more challenging as the sky itself is too bright?
Asher
Chris Calohan II
Member
You can see the setting moon in the middle of the frame, and you are correct in noting you cannot have both a moon and the MW in the same shot. I use Photo Pills to guide me to the optimum time when the galactic center is at midpoint above the horizon. There are devices that will allow the camera to track the Milky Way as it moves across the plain, but they are cumbersome to use and basically a PITA to set up and use. Doing six-frame pano's using a nodal bar to keep the horizon in line and to keep the lens orientation in the optimum position for focus works well enough for me.
Asher Kelman
OPF Owner/Editor-in-Chief
Explain your “Nodal bar”!
Chris Calohan II
Member
Nodal Rail is a nodal slide, designed to adjust your camera's position front to back, thereby enabling positioning of the nodal point on your lens over the center of rotation. This allows you to create accurate stitched panoramic images. I don't get overly technical. I just slide the camera on the rail until the focal point of the lens is centered on the rail according to the lens' focal point - which is usually right about where the lens meets the body.
Nodal Rail
Nodal Rail
Asher Kelman
OPF Owner/Editor-in-Chief
Thanks! Sure I use that on my Gigapan robots for 3D panoramas.
You are an expert on building magnificent panoramas, like the thunderously beautiful waterfalls, you posted, here!
Asher
You are an expert on building magnificent panoramas, like the thunderously beautiful waterfalls, you posted, here!
Asher
Doug Kerr
Well-known member
Hi, Chris,
It is actually the location of the entrance pupil of the lens that needs to be on the center of rotation. And just for thoroughness, there are (almost always) two nodal points in a lens. But that doesn't matter here, as neither of the two is of interest.
In any case, beautiful work. Thanks.
Best regards,
Doug