Sigma 50mm f2.8 APO EX DC MKII 50-1 manuale

Sigma 50mm f2.8 APO EX DC MKII 50-1
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  • Tipo di file: PDF
Thank you very much for purchasing a Sigma Lens. In order to get the
maximum performance and enjoyment out of your Sigma lens, please
read this instruction booklet thoroughly before you start to use the lens.


1. Filter Attachment Thread
2. Focus Ring
3. Distance Scale
4. Focus Index Line
5. Zoom Ring
6. Focus Mode Switch (except Nikon
7. Mount
8. Lens Hood


These are special lenses that are designated for digital cameras because
the lens image circle is designated to correspond to the size of the image
sensors of most digital SLR cameras. The specialized design gives these
lenses the ideal properties for digital cameras.
An image sensor element larger than those corresponding to APS-C
cannot be used in digital cameras or 35mm SLR cameras. If such an
element is used vignetting will occur on the picture surface.
If you use SD9, SD10 or SD14 digital cameras, corresponding angle of
view will be 85-255mm.


When this lens is attached to the camera body it will automatically function
in the same way as your normal lens. Please refer to the instruction
booklet for your camera body.
On the lens mount surface, there are a number of couplers and
electrical contacts. Please keep them clean to ensure proper
connection. To avoid damaging the lens, be especially sure to place the
lens with its front end down while changing the lens.


The sigma lens functions automatically after mounting to your camera.
Please, refer to the camera instruction book.


This lens features Sigma’s built-in Hyper Sonic Motor (HSM). The HSM
enables quick and quiet autofocusing.
For autofocus operation, set the focus mode switch on the lens to the “AF
position (fig.2). If you wish to focus manually, set the focus mode switch on
the lens to the “M” position. You can adjust the focus by turning the focus
For autofocus operation, set the camera to AF mode and set the focus
mode switch on the lens to the “AF” position (fig.2). If you wish to focus
manually, set the focus mode switch on the lens to the “M” position. You
can adjust the focus by turning the focus ring.
For autofocus operation, set the camera’s focus mode to AF. If you wish to
focus manually, set the camera’s focus mode to “M” and adjust the focus
by turning the focus ring.
Please refer to camera’s instruction manual for details on changing the
camera’s focusing mode.
For Nikon, Pentax and Sony mounts, it is only possible to use AF with
camera bodies which support motors driven by ultrasonic waves such
as HSM. AF will not function if the camera body does not support this
type of motor.
This lens also permits manual focusing even in the autofocus mode.
With the camera set to the One-Shot AF (AF-S) mode, it is possible to
manually override the autofocus while the shutter release button is
pressed halfway.
When operating this lens in manual focus mode, it is recommended that
correct focus be confirmed visually in the viewfinder rather than relying
on the distance scale. This is due to possible focus shift resulting from
extreme changes in temperature which cause various components in
the lens to expand and contract. Special allowance is made for this at
the infinity setting.
Rotate the Rubber grip on the zoom ring to the desired position.


The camera’s built-in flash will cause barrel shadow if used with this lens.
For best results, please only use an external flash unit.


The lens can be used with Sigma’s 1.4x EX or 2.0x EX Apo Tele
Converters (optional),
a 100-300mm F5.6 Autofocus telephoto zoom lens
Do not use other manufacturers’ teleconverter’s, only those listed above
are compatible.
We recommend the DG APO Tele-Converters when using with DSLR
The Pentax mount Tele Converter is not compatible with this particular
In case of Sony AF mount, it is possible to use AF when attaching tele
converters with a serial number above 5000001. AF will not work if the
tele converter’s serial number is lower than 5000001.


A bayonet type detachable hood is provided with the lens. This lens hood
helps to prevent flare and ghosted images caused by bright illumination
from outside the picture area. Attach the hood and turn clockwise until it
stops rotation. (fig.3)
In order to place the lens and hood into the storage case, you must first
remove the hood, then replace it on the lens in the reverse position.


Only one filter should be used at the time. Two or more filters and/or
special thicker filters, like a polarizing filter, may cause vignetting.
When using a polarizing filter with AF camera, use the “circular” type.


Avoid any shocks or exposure to extreme high or low temperatures or
to humidity.
For extended storage, choose a cool and dry place, preferably with
good ventilation. To avoid damage to the lens coating, keep away from
mothballs or naphthalene gas.
Do not use thinner, benzine or other organic cleaning agents to remove
dirt or finger prints from the lens elements. Clean by using a soft,
moistened lens cloth or lens tissue.
This lens is not waterproof. When you use the lens in the rain or near
water, keep it from getting wet. It is often impractical to repair the
internal mechanism, lens elements and electric components damaged
by water.
Sudden temperature changes may cause condensation or fog to appear
on the surface of the lens. When entering a warm room from the cold
outdoors, it is advisable to keep the lens in the case until the
temperature of the lens approaches room temperature.


Lens construction 14 – 18
Angle of View 27.9 – 9.5°
Minimum Aperture 22
Minimum Focusing Distance 1m (3.28 ft)
Magnification 1:5.3
Filter Size 67mm
Dimensions Dia.×Length 76.5×140.2mm (3×5.52 in)
Weight 780g (27.5 oz)
Dimensions and weight include the SIGMA mount.


Sigma 50mm f2.8 APO EX DC MKII 50-1

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Specifiche Sigma 50mm f2.8 APO EX DC MKII 50-1

Marca Sigma
Modello 50mm f2.8 APO EX DC MKII 50-1
Prodotto Lenti
Lingua Inglese
Tipo di file PDF

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