I believe you bought some umbrella brackets something like these
<http://www.bhphotovideo.com/c/search?Ntt=umbrella+bracket&N=0&InitialSearch=yes>
If so, all the tilt adjustment required is built into the umbrella
bracket. They're designed to attached to light stands by slipping them
over the top stud which is 5/8" diameter. Since the light stand top
doesn't swivel the bracket or light itself must do the work. See:
<http://www.bhphotovideo.com/c/product/262758-REG/Impact_LS_6B_Light_Stand_Black.html>
Perhaps you only need remove the tripod head and replace it with a
short, rigid length of bolt or rod about 15-16mm diameter.
Chuck Norcutt
On 11/3/2010 5:18 AM, Olaf Greve wrote:
> Well, a progress update:
>
> Monday evening I went over to my friend's place, armed with the taps,
> and aluminum strip and the bolts and nuts that Piers sent. As a
> surprise to me, my friend told me that the tap should actually have
> come in three separate stages (i.e. three taps) and I only had numbers
> 1 and 2 (I had noticed that one looked more blunt, but just figured it
> to perhaps be a worn one). Nonetheless, we went ahead and tapped out
> the first two stages. As the aluminium is relatively soft and the
> steel bolts (which are sharp enough) is not, I opted to try and see if
> they would screw in, effectively forming the third tapping stage. This
> worked a charm, with a small "adjustable wrench" (called "bako" over
> here, but what are those called in English?) the proper amount of
> torque could be applied in a controlled fashion to force them through.
> After a bit, they went through easily. :)
>
> The strips now mount fine directly onto the tripod head screw thread
> (hence not requiring a fixation nut on top of it) and on the 'flash
> end' of them, the bolts could easily be screwed through, right up to
> the desired length, again, without requiring nuts to fix them in their
> positions. This works pretty nicely, and I did already mount the
> brolly boxes (presently without flashes) and the inclination now seems
> to be much better.
>
> Then.... this is as far as I got. It will most likely not be before
> Saturday that I _may_ get a chance at taking some pictures (unless I
> can find a small speck of time before then).
>
> Also, when I was at my friend's place, we took a look at fixing the
> two broken tripods too. One of them had the securing screw that fixes
> the camera-base plate missing. Dangerous, as inclining the mounted
> gear forwards could cause it to have the gear fall out (don't ask
> about the dent in my 50/3.5 lens ring, grrr). Needlessly to say, the
> big plastic screw thread was also not metric (<sigh> when will we have
> ONE unified system worldwide? whichever it is...), so the search was
> on for the proper thread. M10 and M12 didn't do it, but my friend
> still had some specials nuts that are in non-metric size. Those
> included some big ones for gas pipelines. The thread fitted! The outer
> part of the nut itself didn't enter the round shaped surrounding part
> of the thread, but my friend fixed that with his lathe; he turned the
> nut until the outer part was nicely rounded and entered. The 'locking'
> ability in different angles is now gone (although this could probably
> be enabled again using some big washers), but at least the camera will
> not fall out of it anymore.
>
> The other tripod proved to be more of a challenge: the "turn-handle"
> that is used for loosening/tightening the inclination of the tripod
> head was broken off in such a way that a part of the thread still
> remained inside the tripod head. Unfortunatly this is stuck in a loose
> metal part, and try as we might, we could not drill a small hole in
> the remnants of the thread... In fact, the drill couldn't even get
> enough grip to fully drill it out. Unless anyone knows how the head
> can be opened (and re-asssembled!) I may have to resort to glueing it
> in one fixed position, as the tripod head now keeps tilting forward
> under the weight; making it pretty useless (and it's only intended use
> is as a lightstand anyway).
>
>
> Cheers,
> Olafo
--
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