Comparative Analysis: Profoto White Zoom Reflector vs. Silver Zoom Reflector by JRPAC
Comparative Analysis: Profoto White Zoom Reflector vs. Silver Zoom Reflector by JRPAC
Jean-Romain PAC
ICLS Associate Member
photo@[Link]
@jeanromainpac
We all use the
Profoto Zoom Reflector.
Its inner part is silver.
OK,
but what’s your point?
All the following tests and their results wouldn't have been possible without the help
of Josef BEYER and Valentine LACOUR.
Tests were performed on the 13th of February 2026, on set 4 of Little Grand Studio,
Aubervilliers, France.
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Protocol
Distance between the flash tube and the lightmeter was: 3.0 meters.
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Exposure
The camera settings matched the lightmeter values*, read at 3 meters with the
reflector on position 5.
* Except for the ISO: lightmeter was set to ISO100, while the camera was set to
ISO125.
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Light compensation
The head power value was not adjusted, except when switching from one dish to
another, that is to say half a stop.
In other words: we increased half a stop at the pack, when we used the ZoomWhite
to get the same exposure.
The pack wasn't touched when we changed the focus of the reflector, from 5 to 10.
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Post processing
We just imported the .RAF Fujifilm raw files in Capture One and locked the white
balance to 5500K.
Silver White
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Photometrics
• Silver Zoom Reflector was 5/10ths of a stop (half a stop) brighter than the
White version.
• White Zoom Reflector was 5/10ths of a stop (half a stop) darker than the
Silver version.
It's more due to the light distribution - less focused for the white version - than to a
lack of output leaving the dish.
SILVER
WHITE
▀▀▀▀
Position 6 / Axis
SILVER
WHITE
▀▀▀▀
Position 7 / Axis
SILVER
WHITE
▀▀▀▀
Position 8 / Axis
SILVER
WHITE
▀▀▀▀
Position 9 / Axis
SILVER
WHITE
▀▀▀▀
Position 10 / Axis
SILVER
WHITE
▀▀▀▀
Position 5 / Angled beam
SILVER
WHITE
▀▀▀▀
Position 6 / Angled beam
SILVER
WHITE
▀▀▀▀
Position 7 / Angled beam
SILVER
WHITE
▀▀▀▀
Position 8 / Angled beam
SILVER
WHITE
▀▀▀▀
Position 9 / Angled beam
SILVER
WHITE
▀▀▀▀
Position 10 / Angled beam
SILVER
WHITE
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Analysis
GENERAL
In a way, the white reflector behaves like a silver reflector with a thin & subtle
diffusion on it. Here are both position #5 for each, with post-processing used to
exaggerate the contrast. The same post-processing has been applied on both
pictures.
SILVER
WHITE
SHADOWS
The pure drop shadows when the subject is touching the background are more or
less the same: check B1 & B2 in comparison to B3 & B4.
Without surprise, the contrast is higher for the silver reflector as its light distribution
is more narrow. C2 shadow is darker than C4 one.
REFLECTOR'S BOUNCE
Thus, some part of the scene won't be lit directly by the flash tube, but rather by the
reflector itself, previously lit by the light coming from the flash tube.
SILVER
WHITE
If the silver reflector produces a true difference (here, the floor which is closer to the
reflector than the wall from the flash tube will be brighter than the wall), the White
one creates a more even lighting as the light distribution is wider.
Values mentioned in the pictures are average brightness (0: black / 255: white).
START OF THE BEAM
In our protocol, within the same batch test, we didn't change the stand position, it
was the same pack, the same head, the same head's position, the same zoom
position for the reflector. But the « beginning » of the beam differs a little bit
between the silver reflector and the white one.
As you can see below, the light delivered by the white reflector starts almost
vertically aligned with the dish edge: A² starts sooner than A1.
SILVER
WHITE
COLOR
We didn't measure the CCT with a spectrocolorimeter but we can see the average
shift between each reflector by averaging the whole picture.
Instinctively, I would say that even an 1/8 CTB would be too much to « color
correct » a white reflector to match a silver one.
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Abstract
email (preferably)
photo@[Link]
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@jeanromainpac
Jean-Romain PAC
ICLS Associate Member
photo@[Link]
@jeanromainpac