M1L + Nikon D300 + Nikon 10.5 + Nadir adapter = HELP!

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  1. M1L + Nikon D300 + Nikon 10.5 + Nadir adapter = HELP!

    #1
    Users Country Flag
    Join Date: Sep 2009
    Location: Los Angeles, CA
    Posts: 348

    So I unpack and set up my brand new M1L. I am using a Nikon D300 and a Nikon 10.5 lens. I get the rig calibrated and start shooting. When I take a look at the Nadir patch shot, I am disappointed to see the knob on the lower rotator clamp sticking way out into the picture. The knob overlaps the tripod leg in the patch shot rendering the patch shot not useable. It does not matter which way I put the clamp on the rotator. The knob sticks out way too far. I had to fabricate a low profile knob in order to get a useable Nadir patch shot.

    I am shooting 6 around + Zenith + Nadir + Nadir patch shot.

    For those of you following at home, I am NOT using the lens ring clamp. I am using all the standard stock parts right out of the box. This includes the camera body plate.

    Is there something I am missing? Has anyone else been able to use this set up without any modifications?
  2. #2

    Hello Denis,

    What about shooting 2 nadir shots 180 degree apart instead of just one nadir shot ?
    For my combo ( M1-L+ nadir adapter, Canon 5D, Tokina 10-17@16mm) this works fine.
    The advantage is a better overlap with the nadir patch shot..

    Wim
  3. #3

    Dennis, I do the same as Wim and shoot two nadir shots on the tripod separated by 180 degrees of yaw. It gives the smallest hole to be patched.

    John
  4. #4
    Users Country Flag
    Join Date: Sep 2009
    Location: Los Angeles, CA
    Posts: 348

    If Nick were to provide a low profile knob, only 1 Nadir shot and 1 patch shot would be required.



    Glad to know that I did not miss something. This pano head is one great piece of engineering.

    Thanks Wim and John for the help.
  5. #5
    Users Country Flag
    Join Date: Apr 2008
    Location: Hong Kong
    Posts: 2,414

    Quote Originally Posted by DennisS View Post
    If Nick were to provide a low profile knob, only 1 Nadir shot and 1 patch shot would be required.



    Glad to know that I did not miss something. This pano head is one great piece of engineering.

    Thanks Wim and John for the help.
    Hi Dennis,

    Thx for your report. Actually, Wim reported this "issue" to me before. And I responded that we could make a low profile knob as an option.
    The knob design and placement is a balance of usability and clearance of nadir patch. We started with a low profile screw knob. We found that it didn't tighten enough. We used a low profile lever knob from our old ASQRC2 and found it inconvenient to use as its rotation was limited to only 3/4 circle. So we settled with this current knob. It depends on your expectation of nadir patching. Do you need a patching nadir shot that is perfectly at the original (NPP) position as the other images? It is not absolutely needed. PTGUI VP correction can deal with small offset. Conventional nadir shot taking technique can't even come close as far as accuracy of positioning is concerned. So I think my compromised is justified. But then it is the user to decide what is acceptable.

    Nick



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  6. #6
    Users Country Flag
    Join Date: Sep 2009
    Location: Los Angeles, CA
    Posts: 348

    Hey Nick,

    A low profile knob does not need to be any wider than 1/4" with a small .062" shoulder. It does, however, need to be a whole lot larger in diameter. The one pictured is 1.25" and works great. The knob is plenty big enough to allow the clamp to be tightened nice and tight. Even if there was only a 1/2 turn, that would be enough to allow the clamp to open up wide to slide the lower rail out. Since you have a retractable safety pin, it all works. There also appears to be some room to shave off part of the clamp. I swapped out the RD16 and am using the RD4 rotator. That also gives some more room to grab the knob. I just love the modular design of your stuff.

    I have always taken just 1 Nadir and 1 patch shot. I have done it this way since before PTGui had its viewpoint correction feature. They say that old habits die hard.

    Dennis
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