From: Jim Carlile (email suppressed)
Date: Thu Jun 05 2008 - 19:32:17 PDT
 
There's two different ways to key a super 8 camera to read ASA 100. The  
first is to speed-notch it at straight ASA 100T, and then leave the filter  
setting on 'bulb' to retract the internal 85 filter. The problem with this is  that 
few cameras will read the specific ASA 100 speed-notch size, and even if  they 
do, it's easy to mistakenly leave in the filter. I've heard this is how  
Wittner notches their 100D film.
 
The second way is the new Plus-X way, and it's the way Kodak also  notches 
V200T as well. This method speed-notches the cartridge at ASA 160T/100D,  and 
then has a notchless cartridge to depress the filter pin in the camera.  Under 
the SMPTE standard, pushing in the filter pin automatically sets the meter  to 
ASA 100 instead of ASA 160, and without the internal 85 filter.
 
This is the best way, but there's a problem with it-- a lot of cameras will  
not read ASA 100D, either. Their filter pins-- if they even have one-- won't 
do  anything but retract the internal 85 filter. Many newer cameras are stuck 
with  this problem. What they do instead is read the film as straight ASA 160.
 
So, when using either Plus-X or V200T or Spectra's 100D, you have to make  
sure the camera will read the notches correctly. It's surprising how many will  
not.
 
Hmm, wonder what the problem is with the cartridges on Kodak's  end...?
 
 
 
 
In a message dated 6/5/2008 11:56:25 A.M. Pacific Daylight Time,  
email suppressed writes:
In  response to...
> 100D requires a strange unorthodox notching system  that violates the SMPTE 
super 8 notch protocol. There is no ASA 100 daylight  notch size, and it 
would require some contortions (and knowledge on the part  of the users) to 
circumvent the two very different ways they would have to cut  the cartridge to set 
cameras to ASA 100. One way is complicated and could  result in many errors, 
the second won't work on many newer  cameras.
...I forwarded the above recent Frameworks posting to Spectra,  who replied:
'We made various calculations, changes and tests along the  way to find the 
perfect notch.  Now, we simply follow Kodaks lead by  notching the carts the 
same as their 100ASA PlusX. This is what most of the  shooters prefer from us as 
well.'
And indeed Flying Spot, who recently  transferred 8 rolls of EK 100D (ordered 
from Spectra) for me, tells me  everything looks marvelous. 
Now if only Spectra could get their hands  on those darn cartridges so they 
could load up some more. It's crazy; Spectra  has the stock, but no cartridges. 
And Super 8 Sound has the cartridges but no  stock. Oy...
Ken
 
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