Re: 70mm Pioneering Blues

[Don Roberts <droberts@xxxxxxxxxxxxx>]

Bob & Jennifer wrote:

> If anyone can help me figure out a couple problems I am having with this
> process, I would love to hear from you.
>
> Problem #1
> I seem to have a light leak problem with the 70mm back.  I burned several
> rolls of film and processed them and all of them have a flash going through
> almost every frame.  I sent it to the Camera Wiz and they put new foam all
> around the edges and fixed a tracking problem I was having with the back.
> I still have the same light leak problem.
>
> Problem #2
> I have scratches through the film.  I assume it is happening in the Alden
> loader.  Has anyone else had this problem?  Do I need to sand some edges?
> I stuck my finger in the loader (while in the black bag) and I couldn't
> feel any sharp edges where the film would be touching.

Bob, I have had the same problem on occasion with the ETRS 70mm back.  I think it
stems from not seating the front of the magazine solidly when reloading.  I
thought I had done that but then discovered that if I pushed the magazine down
onto the front part I would get another small movement and an audible click.  I
am assuming that I didn't always get things together as I thought I did.  As a
precaution I still put black electrical tape over the dark slide slot and the
joint where the mag joins the body.  I can't be sure that helps but it makes me
feel better.  Since I have done these two things I haven't had any light struck
film.

I have an Alden loader and tried it  and then abandoned it in favor of a
Kindermann.  I have to load in the dark but it is easy and will load cassettes as
well as Kindermann 70mm reels.  I have had no scratches with this system.

=========================================================
     Don Roberts -Bittersweet Productions - Iowa City, Iowa

*                                              *
"Sometimes I think we're alone. Sometimes I think we're not.
 In either case, the thought is staggering."  - Buckminster Fuller
==========================================================


*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************