70 mm film

In article <t83qi2-obc.ln1.RemoveThis@barley.site>,
Nick Zentena <zentena.RemoveThis@stout.hophead.dyndns.org> wrote:

 > Charles Hohenstein <chohenste.RemoveThis@skyenet.net> wrote:
  > > Does anyone have a convenient summary (maybe on a web page) of what
  > > films are still available in 70 mm format?
 >
 >
 > You could see what B&H is stocking. Basically I think the choices are
 > portrait films. Maybe one or two choices from each company. Plus some aerial
 > films. Kodak makes I think one B&W film. JandC is going to bring in Efke
 > 70mm. It also depends if you need perforated or not.

That's interesting information about the Efke. I wonder which film it
will be. I don't presently have a 70 mm back, but I keep noticing how
inexpensively they are selling on eBay--presumably because not much film
is available any more. I just wondered exactly how bad the situation is.
I did a search at the Adorama web site and I only came up with 2
films--one of the Kodak Portra films, and a Fuji slide duplicating film.
It doesn't sound encouraging.

Charles Hohenstein<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 70 mm film 

In article <t83qi2-obc.ln1 DeleteThis @barley.site>, Nick Zentena
<zentena DeleteThis @stout.hophead.dyndns.org> wrote:

 > Charles Hohenstein <chohenste DeleteThis @skyenet.net> wrote:
  > > Does anyone have a convenient summary (maybe on a web page) of what
  > > films are still available in 70 mm format?
 >
 >
 > You could see what B&H is stocking. Basically I think the choices are
 > portrait films. Maybe one or two choices from each company. Plus some aerial
 > films. Kodak makes I think one B&W film. JandC is going to bring in Efke
 > 70mm. It also depends if you need perforated or not.

Perforated is harder to find than unperforated. Portra 160 is
available in perf and non perf and there are a few aerial films. Tri-X
is available in unperforated but not perforated.

All the Hassy backs need perforated film. At one time, they could be
converted to using non perforated film but I have not been able to find
a repair outlet to make the conversion or been able to find a vendor
for the parts (basically a roller without cogs). I have heard via a
member of the Hassy list that the non-peerf conversion doesn't work
that well either (bad spacing, non-advancement of film, etc.)

Kind of a shame because the ability to have 50 shots loaded up could be
handy. However, the price of 220 backs isn't that high any more and 24
shots are quite a few, too. Even if the 70mm film was avaialbe, there
is/was no financial benefit for bulk loading 70mm as there is with
35mm. I fugred it out once and it actually was a little bit more
expensive than using 120 or 220.

I have a 70mm roller, a Hassy back and a developing reel. If J&C
brings in perforated 70mm, I'll probably get some. I have a bunch of
short dated Kodak ASA 400 'survailence film' which is kinda like Tri-X
but I'll like to get something newer, fresher and better.<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 70 mm film 

I have a vaque impression that you can load 2 35mm films to a 70mm
back.

If you load a slide and a negative, or a color and a B&W, that might be
a convenient way for the twin shots. Of course that means you'll have
to shoot both films for each advance.

Down this route, a 90 degree view finder will be neat.





raoul wrote:
 > In article <t83qi2-obc.ln1.DeleteThis@barley.site>, Nick Zentena
 > <zentena.DeleteThis@stout.hophead.dyndns.org> wrote:
 >
  > > Charles Hohenstein <chohenste.DeleteThis@skyenet.net> wrote:
   > > > Does anyone have a convenient summary (maybe on a web page) of
what
   > > > films are still available in 70 mm format?
  > >
  > >
  > > You could see what B&H is stocking. Basically I think the choices
are
  > > portrait films. Maybe one or two choices from each company. Plus
some aerial
  > > films. Kodak makes I think one B&W film. JandC is going to bring in
Efke
  > > 70mm. It also depends if you need perforated or not.
 >
 > Perforated is harder to find than unperforated. Portra 160 is
 > available in perf and non perf and there are a few aerial films.
Tri-X
 > is available in unperforated but not perforated.
 >
 > All the Hassy backs need perforated film. At one time, they could be
 > converted to using non perforated film but I have not been able to
find
 > a repair outlet to make the conversion or been able to find a vendor
 > for the parts (basically a roller without cogs). I have heard via a
 > member of the Hassy list that the non-peerf conversion doesn't work
 > that well either (bad spacing, non-advancement of film, etc.)
 >
 > Kind of a shame because the ability to have 50 shots loaded up could
be
 > handy. However, the price of 220 backs isn't that high any more and
24
 > shots are quite a few, too. Even if the 70mm film was avaialbe,
there
 > is/was no financial benefit for bulk loading 70mm as there is with
 > 35mm. I fugred it out once and it actually was a little bit more
 > expensive than using 120 or 220.
 >
 > I have a 70mm roller, a Hassy back and a developing reel. If J&C
 > brings in perforated 70mm, I'll probably get some. I have a bunch of
 > short dated Kodak ASA 400 'survailence film' which is kinda like
Tri-X
 > but I'll like to get something newer, fresher and better.<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 70 mm film 

"einst_stein" posted:
"...
I have a vaque impression that you can load 2 35mm films to a 70mm
back.
...."


No.

It doesn't work that way.


<einst_stein.TakeThisOut@yahoo.com> wrote in message
news:1113292549.316460.83660@g14g2000cwa.googlegroups.com...
 > I have a vaque impression that you can load 2 35mm films to a 70mm
 > back.
 >
 > If you load a slide and a negative, or a color and a B&W, that might be
 > a convenient way for the twin shots. Of course that means you'll have
 > to shoot both films for each advance.
 >
 > Down this route, a 90 degree view finder will be neat.
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 70 mm film 

I should have made it clear that I'm only talking about Hasselblad 70mm
back, not any 70mm back or camera.

If I rememeber it right, the 70mm type for Hasselblad has the same
pitch and size of the sprockets as the 35mm film. Except that the
sprocket only appears on one side, not the two sides like 35mm, So,
you should be able to roll two 35mm side by side to HB's 70mm film
magazine. To shoot th twin 35mm, you'll need to custom cut the dark
slide so that it can allow you to shoot one 35mm each time. HB's window
is 54mm x 54mm, the image width on each 35mm film will be (54mm/2 -
5mm) = 22mm. Here the 5mm is the unusible edge width of the sprocket.

Again, this is just from a very vague impression, never tried it.
Anyone who owns a HB 70mm back care to give a comment?
 >> Stay informed about: 70 mm film 

I should have made it clear that I'm only talking about Hasselblad 70mm
back, not any 70mm back or camera.

If I rememeber it right, the 70mm type for Hasselblad has the same
pitch and size of the sprockets as the 35mm film. Except that the
sprocket only appears on one side, not the two sides like 35mm, So,
you should be able to roll two 35mm side by side to HB's 70mm film
magazine. To shoot th twin 35mm, you'll need to custom cut the dark
slide so that it can allow you to shoot one 35mm each time. HB's window
is 54mm x 54mm, the image width on each 35mm film will be (54mm/2 -
5mm) = 22mm. Here the 5mm is the unusible edge width of the sprocket.

Again, this is just from a very vague impression, never tried it.
Anyone who owns a HB 70mm back care to give a comment?
 >> Stay informed about: 70 mm film 

I should have made it clear that I'm only talking about Hasselblad 70mm
back, not any 70mm back or camera.

If I rememeber it right, the 70mm type for Hasselblad has the same
pitch and size of the sprockets as the 35mm film. Except that the
sprocket only appears on one side, not the two sides like 35mm, So,
you should be able to roll two 35mm side by side to HB's 70mm film
magazine. To shoot th twin 35mm, you'll need to custom cut the dark
slide so that it can allow you to shoot one 35mm each time. HB's window
is 54mm x 54mm, the image width on each 35mm film will be (54mm/2 -
5mm) = 22mm. Here the 5mm is the unusible edge width of the sprocket.

Again, this is just from a very vague impression, never tried it.
Anyone who owns a HB 70mm back care to give a comment?
 >> Stay informed about: 70 mm film 

I should have made it clear that I'm only talking about Hasselblad 70mm
back, not any 70mm back or camera.

If I rememeber it right, the 70mm type for Hasselblad has the same
pitch and size of the sprockets as the 35mm film. Except that the
sprocket only appears on one side, not the two sides like 35mm, So,
you should be able to roll two 35mm side by side to HB's 70mm film
magazine. To shoot th twin 35mm, you'll need to custom cut the dark
slide so that it can allow you to shoot one 35mm each time. HB's window
is 54mm x 54mm, the image width on each 35mm film will be (54mm/2 -
5mm) = 22mm. Here the 5mm is the unusible edge width of the sprocket.

Again, this is just from a very vague impression, never tried it.
Anyone who owns a HB 70mm back care to give a comment?
 >> Stay informed about: 70 mm film 

I should have made it clear that I'm only talking about Hasselblad 70mm
back, not any 70mm back or camera.

If I rememeber it right, the 70mm type for Hasselblad has the same
pitch and size of the sprockets as the 35mm film. Except that the
sprocket only appears on one side, not the two sides like 35mm, So,
you should be able to roll two 35mm side by side to HB's 70mm film
magazine. To shoot th twin 35mm, you'll need to custom cut the dark
slide so that it can allow you to shoot one 35mm each time. HB's window
is 54mm x 54mm, the image width on each 35mm film will be (54mm/2 -
5mm) = 22mm. Here the 5mm is the unusible edge width of the sprocket.

Again, this is just from a very vague impression, never tried it.
Anyone who owns a HB 70mm back care to give a comment?
 >> Stay informed about: 70 mm film 

<einst_stein DeleteThis @yahoo.com> wrote in message
news:1113367100.732810.300850@f14g2000cwb.googlegroups.com...
 >I should have made it clear that I'm only talking about Hasselblad 70mm
 > back, not any 70mm back or camera.
 >
 > If I rememeber it right, the 70mm type for Hasselblad has the same
 > pitch and size of the sprockets as the 35mm film. Except that the
 > sprocket only appears on one side, not the two sides like 35mm, So,
 > you should be able to roll two 35mm side by side to HB's 70mm film
 > magazine. [...]

That is a strange suggestion. Why would one want to do such a thing?<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: 70 mm film 

Back then this allows to shoot 35mm specific films on Hasselblad. Not
just one, but two different types (BW + color or slide + neg) in one
back.
Besides, the image would be 54mm wide, close to 24mm x 54mm panoramic
format.

Why would one want to do that? Well, this is a heavy question. Like
every possibility, it takes intellect to give it the purpose. A
comlpete answer might be found in the whole human's history.
 >> Stay informed about: 70 mm film