The most obvious difference 
between the films is that Agfa 
uses an integral mask thus 
giving the typical orange cast 
to the negative, while Kodak 
does not make use of this 
system (Figure 6). The integral 
mask aids in minimizing the 
interference amongst the three 
color dye layers, thereby 
producing greater color 
saturation [19]. The processing 
are also different; 
the Aero-Neg color 
while Agfa uses the 
C-41 process [20]. Depending 
upon the configuration of the 
processing equipment used 
(Kodak RT Mdl. 1411C) Kodak 
film can be processed between 
3. 2 and 6. 4 ft. /min. Agfa film 
processing rate is 
approximately 2 ft. /min. 
(Kreonite KM3 1010). Production 
efficiency is, therefore, 
enhanced with the Kodak 
product. 
Visual inspection of graininess 
and resolution show the Agfa 
film with slightly better 
qualities (Figure 8); RMS 
granularity values for the two 
films [19,20] (Aerocolor = 12, 
Avicolor = 6) confirm this 
observation. 
One final note with regards to 
the curl of the processed film, 
the Avicolor film tends to lie 
flat whereas the 2445 has a 
significant curl to it. 
flat lying film aids 
manipulating the film 
inspection, annotation, 
reproduction. 
The 
in 
for 
and 
conditions 
Kodak uses 
process [7] 
The sensi 
characteristics 
films (Figure 7) 
primarily by a 
speed with the 
(Agf a= ANSI 242, 
137) and higher 
the Kodak product 
A. G. . Kodak=. 75 A. G. 
tometri c 
of the two 
are conveyed 
faster film 
Agfa product 
Kodak= ANSI 
contrast with 
(Agfa=. 56 
). Higher 
Positive Type Emulsions 
True color films. This class 
of films encompasses the Kodak 
Aerochrome MS 2448, and the 
Agfa Avichrome 200 films. These 
films have had limited use in 
aerial survey applications. The 
low frequency use is mainly 
attributed to the reluctance of 
users to use the original 
positive image in a working 
environment, instead prints 
produced from negative original 
films have been preferred. In 
some applications reversal 
positive films have been 
processed to a negative with 
the prints used in natural 
resource studies [21]. In cases 
where optimum image quality has 
been required, such as mapping, 
these films have been used in 
their positive original state*.