PixelPix wrote:
> On Apr 16, 9:32 pm, "Rob." <m...@[EMAIL PROTECTED]
> wrote:
>> 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.
>
> It's strong enough for the 1DS2 when not configured with the second
> small bracket. (as I mentioned... the small bracket is not part of it
> anyway, its a "separate single row" pano bracket.)
>
>> 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 have used adhesive camera seal foam between the small bracket and
> cam (when configured in single row mode) and adhesive camera seal felt
> between the macro rail and bracket.... so nothing moves unless the
> mount screws are loosened. The macro rail comes with a rubber mount
> for the camera, so that stays put also.
>
> I got the foam and felt in a kit off ebay for 10 bucks. I resealed my
> OM1 and still had more than enough to do the pano head.
Hey Rusty, I have just received a 4-way focusing
rail from Link-delight.oz , which I purchased from
ebay. It looks real plasticy on the ebay pic, but
is actually a quite sturdy all metal construction!
I bought this after reading your Pano-head
article. Here is a picture of the bracket I
whipped up.
www.members.optusnet.com.au/mjwyllie/Pano_Bkt.JPG
The bracket itself is strong enough & I have
rubber coated the underside & face where my camera
mounts to. I have also welded a little side piece
on the bkt to stop the camera moving, but the
rubber does hold everthing quite still!
Thanks for the advice, can't wait to get out & use
it!!!
--
>>>M.J.Wyllie.<<<
|
