Using a Filter (optional)Before putting a filteron the lens, make sureit is compatible. Referto "Specifications" forcompatible filter size(p.11 ).~.•Afilte~.is a preciseo.p..~.•~.pli.oduct.W..Keep away from dust,dartor.. · . scratches. Al.$0,dpnqttry_to ,mount..·.·.. ' .two or 'morefilters'at thesametime. Doing so may deteriorate theimage quality and cause vignetting(a reduction ofan image'sbrightness or saturation at theperiphery asthe viewing angle ofthe lens ishidden).• 1ncaseof a thickframed filter, thevignetting can occur with a wide-angle lens.10ICautions when using a flashwith the lensWhen you use a flash in situations wherethe distance from a subject and the camerais close, the flash light is partially blockedby the lens, causing some parts of thephoto appear dark.Check the distance between the cameraand subjects when taking photos.Distance interrupted by the flash light mayvary depending on the type of lens .fZ'/1Light ·from the.flashril.,Y>~blocked~.by theI@~~~Y~I9~1'lsprifproperlightin~.~jo~~·th~·l,ns.asappropriat~.for:the·.subjecl;$ndsurroundings.>·.·····.....· ......., ..,...,....