Re: [APML] Lumicon hypermystery

["Bobby Middleton" <bobm@koyote.com>]

I had some on some 120 TP that was hypered in a high-vac setup. Two rolls in
fact but I have not shot any since those last winter. Density was fine on
one roll but poor on another. I thought that the poorly recorded roll was
from exhausted developer but I'm not so sure now........
The bleed-through was sure there though.
Bobby M

,-:'~*~':-,-:'~*~':-,-:'~*~':-,-:'~*~':-,-:'~*~':-,-:'~*~':-,
"For we did not follow cleverly devised tales when
we made known to you the power and coming  of
our Lord Jesus Christ,  but we were eyewitnesses
of His majesty."                                  II Peter 1:16
----- Original Message -----
From: "John C. Mirtle" <spampit@shaw.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Saturday, August 02, 2003 4:34 PM
Subject: Re: [APML] Lumicon hypermystery


> Pretty weird Dale,
>     As I recall, Bobby Middleton was having frame number bleedthrough not
> too long ago. I don't remember how that was resolved or what the cause
was.
> Perhaps he can comment? Was your friend awake and near the camera during
the
> exposure? Perhaps a weak camera battery allowed the shutter to close
> prematurely. Properly hypered tech pan should pick up rich star fields in
90
> minutes with nothing more than a pinhole camera! Was there any forest fire
> smoke? I tried shooting through it last Tuesday night with my Vixen at f9.
> The background was pretty dense, but there weren't many stars and
nebulosity
> was non-existent. I wonder if the tech pan was "old Lumicon" stock, or if
it
> was made fresh....
>
> John Mirtle
> Calgary, Ab. Canada
>
> ----- Original Message -----
> From: "Dale Ireland" <direland@drdale.com>
> To: "APML (APML)" <astro-photo@seds.org>
> Sent: Saturday, August 02, 2003 2:20 PM
> Subject: [APML] Lumicon hypermystery
>
>
> Hi
> A friend of mine just returned from a few days in the high desert of
> central Oregon shooting hypered Tech Pan through his AP155 f/7 under
> excellent conditions. Unfortunately it was all a waste of time.
>
> He just received the film from Lumicon and developed it as usual in
> fresh D19. The images were so thin it looks worse than non-hypered and
> there is faint text with numbers even in the middle of the rolls. Some
> of the frames were exposed as long as 90 minutes and the stars are there
> but they look like 5 minute exposures.
>
> Here is a developed but unexposed frame showing the text in the middle
> of the roll.
>
> http://www.drdale.com/temp/tp1.jpg
>
> And another
>
> http://www.drdale.com/temp/tp2.jpg
>
> Has anyone ever seen this before? Has anyone here had recent experience
> with the "new Lumicon" hypered films.
> Any ideas what this might be about?
>
> Dale Ireland
>
>
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