Re: Anyone use 120-film stereo pairs?

[Joel.Alpers@xxxxxxxxxxx]

#
#>        Anybody tried stereo slide pairs taken with 120 film?  I mean
#>What size images does the sputnik make?
#
#  The images are 6x6 which are about 52 x 52 mm in reality (if I
#recall the 52 correctly).
#
#  I'll let Joel answer about his Sputnik since I don't have one (yet?).
#But I did buy a Ricohflex TLR a few months ago.  I have taken two
#rolls of slidebar shots with it. I was in a stall for a while since
#mounting was difficult (compared to Realist with Albions).

The Sputnik is not a bad camera, though it is prone to light leaks 
and lens flare (it has uncoated lenses). I also use a Pentax 6x7 on
a slide bar (or using the "shift-left/shift-right" method).

#
#>        Anyone build a "little" viewer or know of one available?  Any
#>suggestions
#
#  John B has built a proper viewer and there are plans on the 3d web
#site.  Que Vu (sp?) sells the King Inn viewer. Supposedly has
#fluorescent lighing but poor lenses.

I built one using oak stock available at a local lumber company, and
two lenses from Edmund Scientific. Works fairly well.

#  I slapped together a temporary one using two magnifying glasses and
#some hardwood.  The magnifiers are 1.75" dia and 2.5 power. This is
#not the "correct" focal length but works okay (except for colour
#fringes) until I buy the proper achromats (from Edmund Scientific
#or somewhere cheaper).  I have some opal plexiglass as the diffuser.
#(Make sure you put the diffuser a bit behind the slide so the dust
#is out of focus when looking at slides.)
#
#>for lenses if I opted to make one myself?  I assume about a 80mm lens would
#>yield an "ortho" view, are there other major considerations that would 'get
#>Is there a magnification that is a good target for film this sized?  Are
#
#  80 to 100 mm is probably good. The same fl as your camera gives
#ortho.

Yes, the Sputnik uses 75 mm lenses, and with my Pentax I either shoot with
55mm or 105mm. I put 100mm PCX lenses in my viewer. I'm planning (when I
get a spare few hours) to try a second viewer, probably with 80mm achromats.

#  If you get the MF mounts that Joel sells (which are very nice
#[no fuzzies] and fairly cheap) the images are 2.5" centre to
#centre so you can even free view the slide. Lenses help you see the
#detail though :)
#
#  Joel is going to have a 645 mount soon, then you can crop out
#excess sky or blurry foreground if desired. Or use a 645 camera :)

Thunder-stealer! ;)

#  A pair of MF cameras on a slidebar would be ideal in my opinion.
#Move them as close as possible for near ortho shooting, move them
#apart for hypers. With the twin cable release that Reel 3d sells
#you could probably get pretty good syncronization.

I agree, especially the older TLR's - lighter weight than two
Pentax 6x7's! ;)

#  A Sputnik has its advantages too. Joel can describe them. But
#if you have the money a Sputnik and a pair of TLRs would probably
#do most everything you want.

I think it's light weight and ease of use are the major ones for
me. I use mine quite a lot, in spite of the Sputnik's quirks.

Joel.


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