PixelPix wrote:
> On Apr 16, 5:21 pm, "Rob." <m...@[EMAIL PROTECTED]
> wrote:
>
>>PixelPix wrote:
>>
>>>On Apr 15, 7:53 am, PixelPix <m...@[EMAIL PROTECTED]
> wrote:
>>
>>>>Hi folks,
>>
>>>>I am chasing a second Olympus Macro Rail to update my homemade pano-
>>>>head to something a little more hi-tech.
>>
>>>>I managed one off eBay Oz for $50 recently, but a second is proving
>>>>rather elusive. If anyone knows where one is hiding please let me
>>>>know.
>>
>>>>Cheers
>>
>>>>Rusty
>>
>>>Oly bellows would do also. ;-)
>>
>>So what's the setup like then and how are you calibrating it?
>>
>>r
>
>
> Here's a pic with my single row bracket attached to put the cam into
> horizontal posi.
>
> http://pixelpix.com.au/samples/PanoHead_v3.jpg
>
> I don't actually use it like that, I was just having a play.... when
> used like that it creates a little flex in the main bracket, so
> normally the cam would sit in ****trait orientation direct on the macro
> rail and this eliminates the flex, thanks the center of gravity being
> not so far out.
>
> Calibrating...... the horizontal off-set that allows for the
> "base2lens axis" distance was simply measured and the mounting hole
> drill accordingly (allowing for macro rail). The vertical height to
> the macro rail can be anything and I have simply allowed enough room
> for the rail to rotate through a full 360 degrees.
>
> The nodal points (as adjusted for with the macro rail) have been found
> by conducting tests and comparing near and far objects with changed
> camera rotation. Once found, the offsets for these have been marked
> on the rail.
>
> I want the second rail so that I can use it (base & rail only) as the
> bottom arm of the large black angle. I intend to machine an alloy
> bracket that mounts as the vertical arm to hold the top most macro
> rail. This will make for a lighter/stronger setup that can be adjust
> for different "base2lens axis" distances.
>
> BTW... as you see it, if I remove the large black bracket and place
> the macro rail direct on the tripod, I have a single row pano head.
>
> Cheers
>
> Rusty
Thanks that's where I'm sort of up to. Just looking at your solution to
see if you solved the problem. Guess not :) at this stage.
I have mounted the rack on the tripod and next getting an Al angle.
Looks as if your right angle brackets are a bit light for the camera. My
intention is to get a 120mm x 6mm thick, angle then machine it up with a
steady at the lens end.
The biggest problem is to anchor the camera and stop it pivoting around
on the bottom mounting hole.
I pulled out some Mamiya brackets to use - without success.
r
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