More and more
photographers turn to cold light to solve a wide variety of
printing problems. If you are serious about photography, cold
light will enable you to achieve superior black and white or
color prints. With its many advantages, you can see why cold
light is the most widely used and preferred choice by leading
photographers.
- No Heat
Negatives
will never warp or buckle with a cold light head.
The temperature in our lamp
housing is maintained at a constant 105o F. This
eliminates the frustrating "pop" in the middle of an
exposure, especially with larger format negatives.
- No Hot
Spots
Hot spots are eliminated when you use cold light. The full
light coverage produced by a unique tube pattern insures
edge to edge, even illumination.
- Greater
Printing Speed
Reduced exposures (up to 3 times) are often achieved by
matching highly efficient lamp spectral curves to
photographic paper specifications. This means lower power
consumption and sharper pictures.
- Contact
Print Quality
If
your enlargements are not of contact print quality it is
probably caused by the callier effect. This produces
unnecessary contrast, washing out highlights and causes an
undesirable "soot and chalk" look. Compare a cold light
print to one made by Tungsten condenser and you will
immediately see the superior tonal quality difference.
- Less Print
Spotting
Highly diffused rays suppress dust rather than magnify it.
Without sacrificing sharpness the unique quality of cold
light helps eliminate dust, scratches and other surface
blemishes.
- More
Headroom
Cold light heads provide up to 75% lower profile than
conventional ones. This can mean dramatic increase in
headroom, permitting larger prints where ceilings are low.
- Long Lamp
Life
By
maintaining optimum temperature, longer lamp life, instant
peak intensity and consistency are assured with the Aristo
patented thermostat system. Depending on model, cold light
lamps can have a life expectancy up to 10,000 hours. That is
equivalent to 416 days and nights of constant burning! There
is virtually no change in color temperature during the lamp
life.
How Cold
Light Works
Cold Light vs. Condenser
Condenser type
enlargers (focused light) scatter light disproportionately
through the negative, especially the highlights, with the
resulting loss of original tone values. Condensers accentuate
dust, grain, surface scratches and other imperfections. With the
Aristo cold light, dodging, burning and retouching in many cases
is unnecessary, yielding a rich luminous print without loss of
detail or tonal quality.
Diffusion
Faults Eliminated
A standard
diffusion enlarger uses light from a concentrated source leaving
a visible hot spot in the center and uneven illumination toward
the outer edges. Aristo has eliminated this fault by developing
specially wound grid lamps which cover the entire negative and
beyond. The opal diffuser then blends the light to produce full
coverage and even illumination across the entire surface.
The Aristo
cold grid light unlike either the condenser or diffuser types,
permits proper, efficient transmission of light through the
negative and optical system. The result a savings of time, labor
and material.
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