replacement crown for Merlin: demand poll  

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tarnis
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by tarnis » Fri Apr 03, 2009 5:22 pm

Just curious, why exactly would one want to replace the crown? Seems like a nodal point bracket mounted on the included mount which lowered the camera body height would be more convenient? Are there really that many lenses that one would want the camera body over the crown?

Here's a quicky...
Image

Obviously now you need a different one for every body being the drawback but you're stuck going that route with L-plates anyways.
Last edited by tarnis on Fri Apr 03, 2009 5:23 pm, edited 1 time in total.

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mediavets
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by mediavets » Fri Apr 03, 2009 5:33 pm

tarnis wrote:Just curious, why exactly would one want to replace the crown? Seems like a nodal point bracket mounted on the included mount which lowered the camera body height would be more convenient?

No, because:
a) many lenses have barrels/bodies with a diameter such that this won't work, this may or may not be true in the case of your lenses and your use of the Merlin/Papywizard system.

b) the cranked arm proposed will hit the vertical arm of the Merlin head at quote a small angle of upwards pitch, this may or may not matter to your use of the Merlin/Papywizard system.

Are there really that many lenses that one would want the camera body over the crown?

Yes, any short focal length lens and especially FE lenses if shooting sphericals of interior scenes, and also if using a longer focal length lenses for shooting scenes with things closer up that about 100 metres.

But if you only wish to shoot partial panos (less than 360x180) of distant landscapes using longer focal length lenses then it's not necessary to position the camera/lens at the No Parallax Point (NPP).

Obviously now you need a different one for every body being the drawback but you're stuck going that route with L-plates anyways.

But not the case if you have a modular design for a replacement crown made up of several 'rings'/layers so that you can adjust the offset.
Last edited by mediavets on Fri Apr 03, 2009 5:38 pm, edited 1 time in total.
Andrew Stephens
Many different Nodal Ninja and Agnos pano heads. Merlin/Panogear mount with Papywizard on Nokia Internet tablets.
Nikon D5100 and D40, Sigma 8mm f3.5 FE, Nikon 10.5mm FE, 35mm, 50mm, 18-55mm, 70-210mm. Promote control.

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jeongyun
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by jeongyun » Fri Nov 12, 2010 8:24 pm

Hello,

I'm wondering if teleskop-austria, or anyone could build a replacement crown for me.

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claudevh
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by claudevh » Fri Nov 12, 2010 11:48 pm

:cool: Claude :cool:
Merlin + Papywizard on Windows 7 & Nokia 770 § N810 & Acer (Netbook) + PanoramaApp Androïd + Deltawave PapyMerlin BT + Autopano
Spherical Pano (180 x 360) with Canon 40D + Canon EF-S 10-22mm f/3.5-4.5 Zoom & Pôle Pano with Canon 5D MK2 and shaved Tokina 10-17 3.5-4.5 AF DX Fisheye
Gigapixel photography with Nikon D200 + Sigma 70-200 F 2.8 EX DG APO HSM

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by jeongyun » Sat Nov 20, 2010 4:21 am

I discovered a nice machining shop near by. So, decided to modify the crown.

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claudevh
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by claudevh » Sat Nov 20, 2010 11:38 am

Fine ! "jeongyun" :)
:cool: Claude :cool:
Merlin + Papywizard on Windows 7 & Nokia 770 § N810 & Acer (Netbook) + PanoramaApp Androïd + Deltawave PapyMerlin BT + Autopano
Spherical Pano (180 x 360) with Canon 40D + Canon EF-S 10-22mm f/3.5-4.5 Zoom & Pôle Pano with Canon 5D MK2 and shaved Tokina 10-17 3.5-4.5 AF DX Fisheye
Gigapixel photography with Nikon D200 + Sigma 70-200 F 2.8 EX DG APO HSM

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