Cokin A123S WA1T123S ユーザーズマニュアル
製品コード
WA1T123S
47
THE CENTER-SPOT
FILTERS
UNCOLORED – GREY – OVAL
WHEN the idea is to enhance the subject
while isolating it within a lightly blurred border, the Center-
Spot filters are the appropriate response. There are 6 of these filters in the Z-PRO line; they form a
coherent set with multiple possibilities, in which each filter has its distinct personality.
coherent set with multiple possibilities, in which each filter has its distinct personality.
The apparent size of the zone of sharpness is a function of the focal distance used (think of the conversion filter factor
of APS sensors!); the shorter the focal length is, the more visible the zone will be. As for the transition from sharp to
soft , it depends on the aperture: the wider it is, the more diffuse the transition will be. For a correct adjustment with
auto-focus reflex cameras, the choice of an AF central collimator is obviously required...
of APS sensors!); the shorter the focal length is, the more visible the zone will be. As for the transition from sharp to
soft , it depends on the aperture: the wider it is, the more diffuse the transition will be. For a correct adjustment with
auto-focus reflex cameras, the choice of an AF central collimator is obviously required...
UNCOLORED CENTER-SPOT FILTERS
These filters create blur
around the central subject in a completely
natural-looking way, giving the subject prominence in the image.
We recommend working with apertures of ƒ/5.6 or ƒ/8 in order to keep a suffi-
ciently blurry transitional zone. A strong backlight – balanced if need be with
a small flash or a reflector – brightens the effect of the filter. The surrounding
blur is much stronger with the 071 filter. These 2 filters are to be used prefera-
bly with focal points between 20 and 35 mm (in 24 x 36).
ciently blurry transitional zone. A strong backlight – balanced if need be with
a small flash or a reflector – brightens the effect of the filter. The surrounding
blur is much stronger with the 071 filter. These 2 filters are to be used prefera-
bly with focal points between 20 and 35 mm (in 24 x 36).
•
Center-Spot WA Incolored 1 :
the ideal filter for beginners. + 0 stop
•
Center-Spot WA Incolored 2 :
more pronounced blurred perimeter. +
2/3
stop
WHEN one wants to both
often an image and make it warmer, the Z-PRO line offers three
filters suited to the task: the warm diffusers. Their double effect lends itself to numerous
applications: portraits, weddings, beauty photos, still lifes, landscapes, etc. There are many
subjects to which these filters add a touch of seductive romanticism – very seductive at that !
applications: portraits, weddings, beauty photos, still lifes, landscapes, etc. There are many
subjects to which these filters add a touch of seductive romanticism – very seductive at that !
For portraits,
these 3 filters have in common the capacity to smooth away physical imperfections,
make skin more beautiful and illuminate faces when the subject is back-lit.
For landscapes
with warm tones – autumn forests or a countryside at harvest time, for example
– these 3 filters reinforce the seasonal colours and produce a welcoming atmosphere whose effects
can go beyond the image.
Created for the 10th anniversary
of the company, already more than 20 years ago, this
filter combines a very strong capacity for «warming» tones up – in fact, it is the equiva-
lent of a 81EF (037) filter – with a good level of diffusion, that of Diffuser 1 (830).
lent of a 81EF (037) filter – with a good level of diffusion, that of Diffuser 1 (830).
•
Sunsoft :
combination of filters 830 and 037. + 1 stop
•
Softwarm :
combination of filters 820 and 027. +
1/3
stop
•
Diffuser Warm :
combines a salmon tint (0.39) and a light blur. +
1/3
stop
C. Spot
WA Grey 1
072 C.Spot
WA Grey 2
073
Oval
C.Spot White
140 Oval
C.Spot Black
141
Sunsoft
694
Softwarm 696
Diffuser
Warm
697
GREY CENTER-SPOT FILTERS
THE SUNSOFT FILTER
OVAL CENTER-SPOT FILTERS
THE SOFTWARM FILTER
THE WARM DIFFUSER FILTER
It warms tints as would a beautiful evening light
(or a 039 filter...) and delivers
a level of soft focus that is ideal for faces. It is without a doubt one of the most
appropriate filters for “glamour” portraits.
appropriate filters for “glamour” portraits.
This filter offers the lowest level of diffusion
– that of Diffuser Light (820) – and warms tones less,
in the way an 81B (027) does. Its result is more natural.
These are just a few subjects
where the association of a certain degree of soft focus and a more or
less pronounced warming up of the light can be quite useful!
In practice, think about shifting to manual focus if you work with an auto-focus reflex... As a general rule, these 3 filters accommodate
themselves better, outdoors, to bright lights that they transform into gentle morning or late-afternoon lighting.
themselves better, outdoors, to bright lights that they transform into gentle morning or late-afternoon lighting.
FILTER 694
> Photography Ariel Greco
For larger or taller subjects,
you should opt for the oval Center-Spots which
come in 2 tonalities for the surrounding blur, clear white or charcoal grey.
•
If wedding photography is still their main use, it’s because these filters help
to make unsightly settings less noticeable, centering the attention on the happy
couple. They can also be used in numerous other situations requiring the same
effect: still lifes, landscapes, or even sometimes sports.
couple. They can also be used in numerous other situations requiring the same
effect: still lifes, landscapes, or even sometimes sports.
These filters work by
blurring and darkening the periphery of the
image in a more or less noticeable way. The intensity and the quality
of the central subject’s lighting are clearly emphasized.
of the central subject’s lighting are clearly emphasized.
Use the same instructions as for the Uncolored Center-Spot filters for the aperture
and focal points. The periphery of the 073 filter is darker, reinforcing its effect.
Be sure to adapt the choice of your Center-Spots to the general tonality of
your image to make it more harmonious.
•
Center-Spot WA Grey 1 :
good fusion level of fore and backgrounds. + 1
1/3
stop
•
Center-Spot WA Grey 2 :
more marked peripheral shadowing. + 2 stops
•
Oval Center-Spot White :
peripheral blur in white tones. +
1/3
stop
•
Oval Center-Spot Black :
peripheral blur in charcoal grey. +
1/3
stop
C. Spot
WA Incolored 1
070 C.Spot
WA I Incolored 2
071
The central zone of sharpness
can be small and round, or much larger and of oval shape; their peripheral
power of diffusion declines, depending on the model, in 2 densities; their use is optimised for wide-angle
lenses of 20 to 35 mm (with 35mm film, Center-Spots WA).
Created essentially for use with portraits,
the Uncolored and Grey Center-Spots can also lend their
specific touch to still lifes or some landscapes.
As for the Oval Center-Spots,
they are designed for use with full-length portraits or two-shots, they are
used most typically in wedding photography.
FILTER 072
> Photography Ariel Greco
THE WARM DIFFUSER
FILTERS
SUNSOFT — SOFTWARM — DIFFUSER WARM