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Re: [APML] need advice on camera mount


Hi Wei-Hao,

That looks like a very nice setup.

The Arca-Swiss Monoball B2 ball and socket head will hold 68 kg (of course 
it costs $650 also). That's the top of the line Arca-Swiss. They make 
smaller ones.

See:

http://www.bhphotovideo.com/bnh/controller/home?ci=1&sb=ps&pn=1&sq=desc&InitialSearch=yes&O=SearchBar&A=search&Q=*&shs=Arca-Swiss+Monoball&image.x=3&image.y=8

if this link doesn't work, go to http://www.bhphotovideo.com and type in 
Arca-Swiss Monoball into the search box.

Watch out for differential atmospheric refraction if you shoot very far 
away from where you are guiding.


Jerry





At 04:03 AM 3/23/2005, you wrote:
>Hi,
>
>I just got a new astrocamera:
>     http://www.ifa.hawaii.edu/~wang/misc/200mm_69holder2.jpg
>The lens is 200mm/2.8 for Mamiya 645 and the film holder is a 6x9 film
>holder modified by Mitsuboshi.  The focal plane illumination looks like this:
>     http://www.ifa.hawaii.edu/~wang/misc/200mm_focal_plane.jpg
>The diameter of the image circle is 80mm, not quite enough to make
>a 6x7 frame but certainly much bigger than the original 645 frame.
>
>Now I am looking for a mount for this system.   I hope to put the
>Losmandy plate on some mount and then piggyback it on my telescope.
>In this way, this camera and the telescope can point at very different
>directions (perhaps >15 degrees).  The whole system (camera + lens +
>rings + plate) is 3.7 kg.  The Manfrotto mount shown in the picture and
>normal ball heads are not strong enough, I guess.  Do you have any
>suggestions?  Any inputs are appreciated.
>
>Clear Skies,
>
>Wei-Hao
>
>
>--
>________________________________________________________________
>Wei-Hao Wang  :)
>
>Institute for Astronomy at University of Hawaii
>
>Address:
>2680 Woodlawn Drive         Personal Website:
>Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
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