[adamyau]

本人剛買左K20D+Sigma 17-70mm F2.8 . 非常滿意. 所認想加友鏡.

請大家俾D意兄. 其實有SDM係咪快好多.

Pentax DA★ 50-135mm F2.8 ED (IF) SDM
Sigma APO 50-150mm F2.8 EX DC HSM
Sigma APO 50-200mm F2.8 EX DG HSM

[posky]

回adamyau:

<<請大家俾D意兄. 其實有SDM係咪快好多

係咩!? 唔知呢, 我用緊, 又唔係好覺, 話時話, 其實快指咩呢

對焦環轉得好快? 定係準確對焦時間好短?

對焦環可以轉得好快, 但係又可以對得唔準架bor

SDM我覺得最大好處係靜d law, 但我個人覺得對焦有d機械聲好似型d bor

如果你想睇下Pentax DA★ 50-135mm F2.8 ED (IF) SDM d sample 呢, 我有dd

http://www.dcfever.com/photosharing/view.php?id=638587

http://www.dcfever.com/photosharing/view.php?id=611985

http://www.dcfever.com/photosharing/view.php?id=610806

http://www.dcfever.com/photosharing/view.php?id=610818

http://www.dcfever.com/photosharing/view.php?id=610799

http://www.dcfever.com/photosharing/view.php?id=610782

http://www.dcfever.com/photosharing/view.php?id=595073

http://www.dcfever.com/photosharing/view.php?id=594434

http://www.dcfever.com/photosharing/view.php?id=594428

http://www.dcfever.com/photosharing/view.php?id=594419

http://www.dcfever.com/photosharing/view.php?id=594403

http://www.dcfever.com/photosharing/view.php?id=594374

http://www.dcfever.com/photosharing/view.php?id=593666

http://www.dcfever.com/photosharing/view.php?id=593664

http://www.dcfever.com/photosharing/view.php?id=593659

http://www.dcfever.com/photosharing/view.php?id=592709

http://www.dcfever.com/photosharing/view.php?id=592708

http://www.dcfever.com/photosharing/view.php?id=592703

http://www.dcfever.com/photosharing/view.php?id=590879

http://www.dcfever.com/photosharing/view.php?id=590878

http://www.dcfever.com/photosharing/view.php?id=590862

http://www.dcfever.com/photosharing/view.php?id=590857

[施靜霞]

必然是Pentax DA★ 50-135mm F2.8 ED (IF) SDM好得多﹗

[老叟]

好就好啦,不過要疊水至得