Sigma Sports 500mm F4 DG OS HSM Instructions page 17

hood helps to prevent flare and ghosted images caused by
bright illumination from outside the picture area. Attach the
hood and lock the knob to fix the hood in place. P.4-(9)
 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.
SHOULDER STRAP
Please attach the shoulder strap to the two slings as
described in figure P.4-(10).
FILTER
It is not possible to attach conventional filters to the front of
the lens body. It is necessary to use the dedicated Filter
Holder and 46mm Filter.
REMOVING THE FILTER
The WR-PROTECTOR is set inside the filter holder as
standard. In order to remove the filter from the filter holder,
turn the filter holder fixing knob counter-clockwise and pull
the filter holder out. Then, rotate the filter counter-
clockwise. P.4-(11)
ATTACHING THE FILTER
Rotate the fixing knob of the filter holder clockwise, and
insert the filter holder. P.4-(12)
 This lens has been designed to deliver optimum
performance with a filter installed in the lens assembly.
The quality of the picture decreases if the filter is not
installed inside the lens. Please always use a filter
inside the lens assembly.
 It is possible to use any other 46mm filters. However, if
the filters have the thickness of more than 5.5mm
(screw thread excluded) or diameter of more than
49mm, they cannot be attached.
 If you wish to use a polarizing filter, the WR-CIRCULAR
PL RCP-11 is available as an optional accessory.
 For protection of the front lens element, the WR-
PROTECTOR LPT-11 is available as an optional
accessory.
BASIC CARE AND STORAGE
 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 benefits from a dust and splash proof
construction. Although this construction enables the
lens to be used under light rain, it is not the same as
being water proof. Please pay attention to prevent a
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