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« Return to Thread: Laser pointers for monopod alignment
Re: Laser pointers for monopod alignment
by panovrx-2
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--- In PanoToolsNG@..., Jann Lipka <jann@> wrote:
> >
> >
> > Peter ,
> > Any chance of a snapshot of this setup ?
> > Sounds little fiddly :-) with LiveView judgment of Lens position ?!
> >
> > But coming from you it should mean quick operation :-?
> >
> >
> >
> > --
> > View this message in context: http://www.nabble.com/Laser-pointers-for-monopod-alignment-tp23906316p23918825.html
> > Sent from the PanoToolsNG mailing list archive at Nabble.com.
> >
>
> http://www.mediavr.com/statelibrary1.htm (full screen)
>
> I will take a pic shortly ... but you can see the Monster Pod and the laser pointer anyway in this pano I shot with it today. This is unretouched from PTGui stitcher. Four shots with 10.5mm Nikkor on 5DII. 3 shot bracket (-2, 0, +2) for each. Enfuse in PTGui.
>
> There are double images from the subject movement in the bracketing but the stitching itself is very accurate. This is just looking directly thru the viewfinder at the laser dot on the plastic beneath the lens -- without LiveView -- so it is pretty quick
> (maybe a minute).
>
> Peter M
Here are some pics of my laser alignment gadget
http://www.mediavr.com/laser.jpg
-- note the pen lines on the barrel and the base it fits into.
This is because the laser beam and laser body are not in alignment.
You need to carefully set the bubble to the actual beam direction
not the body of the laser and then put the laser back into the base
the same way each time (you need to change batteries or whatever).
Here is a pic of what you see thru the viewfinder at the bottom of the image
http://www.mediavr.com/nadir1.jpg
-- you see two red dots -- one is the actual laser beam hitting the translucent plastic you have mounted 15cm under the lens
-- the other red dot is the laser unit itself, and you are looking at
red light reflected off the internal barrel of the laser
The relative positioning of these two red dots makes it easy to move the camera til it is the right position -- even without using LiveView magnification. You want the top red dot (the laser body) to be vertically above the
bottom red dot (the laser beam). And you want the bottom red dot to be where it is - just on the edge of the plastic sheet.
You pick up and move the monopod around the base of the MonsterPod for each (90 degree) shot and tilt it forward slightly each time to find the laser dot on the plastic.
Here is the nadir pic again with captions
http://www.mediavr.com/nadir2.jpg
Peter M
> >
> >
> > Peter ,
> > Any chance of a snapshot of this setup ?
> > Sounds little fiddly :-) with LiveView judgment of Lens position ?!
> >
> > But coming from you it should mean quick operation :-?
> >
> >
> >
> > --
> > View this message in context: http://www.nabble.com/Laser-pointers-for-monopod-alignment-tp23906316p23918825.html
> > Sent from the PanoToolsNG mailing list archive at Nabble.com.
> >
>
> http://www.mediavr.com/statelibrary1.htm (full screen)
>
> I will take a pic shortly ... but you can see the Monster Pod and the laser pointer anyway in this pano I shot with it today. This is unretouched from PTGui stitcher. Four shots with 10.5mm Nikkor on 5DII. 3 shot bracket (-2, 0, +2) for each. Enfuse in PTGui.
>
> There are double images from the subject movement in the bracketing but the stitching itself is very accurate. This is just looking directly thru the viewfinder at the laser dot on the plastic beneath the lens -- without LiveView -- so it is pretty quick
> (maybe a minute).
>
> Peter M
Here are some pics of my laser alignment gadget
http://www.mediavr.com/laser.jpg
-- note the pen lines on the barrel and the base it fits into.
This is because the laser beam and laser body are not in alignment.
You need to carefully set the bubble to the actual beam direction
not the body of the laser and then put the laser back into the base
the same way each time (you need to change batteries or whatever).
Here is a pic of what you see thru the viewfinder at the bottom of the image
http://www.mediavr.com/nadir1.jpg
-- you see two red dots -- one is the actual laser beam hitting the translucent plastic you have mounted 15cm under the lens
-- the other red dot is the laser unit itself, and you are looking at
red light reflected off the internal barrel of the laser
The relative positioning of these two red dots makes it easy to move the camera til it is the right position -- even without using LiveView magnification. You want the top red dot (the laser body) to be vertically above the
bottom red dot (the laser beam). And you want the bottom red dot to be where it is - just on the edge of the plastic sheet.
You pick up and move the monopod around the base of the MonsterPod for each (90 degree) shot and tilt it forward slightly each time to find the laser dot on the plastic.
Here is the nadir pic again with captions
http://www.mediavr.com/nadir2.jpg
Peter M
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