Hi John,
I hope you have enough research before saying that, but it seems not.
For the Surpa 100, it is exactly PJ100 (Ektapress 100) as mentioned on
Kodak's web site.
http://www.kodak.com/global/en/professional/products/films/supra/qAndA.jhtml
;jsessionid=NSPJ3EGYG2515QHIO2SXWKA
If my guess is right the Royal Gold 100 is rename from Ektar 100 (just like
Royal Gold 25 was rename from Ektar 25), this time I have used both Ektar
100 and PJ 100 so I can make a comparison. In my experience the Ektar 100
has higher contrast and the PJ100 was more natural. The "color" of PJ100 is
also more natural and does not need special color adjustment when scanned
while the Ektar 100 is a bit warm.
I have a scan of both film at the same time, the scan was done with a
Microtek 6700, both film placed side by side, there was no adjustment made:
http://www.glink.net.hk/~photogrp/E100VP100.JPG
At the mean time Royal Gold 400 is a old emulsion while the Supra 400 is
completely new, which was designed for scanning, you can check the above
Kodak link. Or just take out one parameter, the print grain index on Royal
Gold 400 is 39 while the Supra 400 is 36 (both at 4x6").
Don't force me to buy each and make comparison scans, I will not do that
because I simple know they are not the same.
C.H.Ling
----- Original Message -----
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
> Kodak *copies* its emulsions and repackages them with different marketing
> clothing. Brace yourself for yet another assertion about Kodak's film
> cloning: Supra 100, Law Enforcement 100 (LE100) and Royal Gold 100 are
all
> the same film. Comparison of *all* the curves and the PGI for each of
them
> show this. In addition, the reciprocity failure and recommended
> non-daylight color correction data also supports it. "Same films" that
> Kodak makes; some will be no-brainers and others may be surprising:
> Pro Image 100 = Profoto 100 = Gold 100
> Supra 100 = LE100 = Royal Gold 100
> Supra 400 = LE400 = Royal Gold 400
> Supra 800 = Portra 800 = Zoom Max 800
> Pro 1000 (disc.) = Royal Gold 1000
> Portra 400BW = Black&White + 400
> E100S = Elitechrome 100
> E100VS = Elitechrome 100 Extra Color
> Ektachrome 160T = Elitechrome 160T
> E200 = Elitechrome 200
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