ahpingko: the kitlens warranty goes with the camera body. the serial is attach to the body. so when u send in for warranty, u have to send it in
with the body. u will unable to register the kitlens as the serial does not exist.
8tvt: Cokin P series owner here.
light leak? light leak only happen if the source of light is stronger then bg/environment, and at a very corner away from your filter.
from all the landscape i shoot, no issue.
GND is best use on holder then filter base. yes, because u can adjust the height.
tian ya is cheaper alternate, but digicolor sell same holder as tianya manufacturer for less then rm20 if u wan go budget.
tian ya or other cheaper/alternate filter can cause iq lost, but seriously, its unnoticable with naked eye.
i spend over 700 on cokin system, and i uses it less then i expected. rather spend the 700 on 30 F2.8 M

eddybeh: always remember, u may seek sharpness at 100% zoom, but at >10mp, naked eye cant see any diff at fullHD resolution LCD(2.1mp). i rather go zoom for versatility.
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the rule of thumb of
bokeh index = focal length divide by largest aperture is sooooo misleading. there is so many variable to take into account.
you see, the index works on a fix distance. let say 5 meter, u get all those index. but problem is, 35mm composition and a 100mm composition is diff, on crop whole body, one crop of the head, surely the head looks more bokehlicious. but if i were to take the 35mm and move closer (say 2meter) to have the same composition of the head (100mm), u get about the same bokeh too(very variable).
here is a better example. 200mm vs 50mm.
said 200/2.8 = 71, but u have to stand 25 meter away... u risk of shake if u got low shutter (lower then 1/200 as rule of thumb shutterspeed = 1/focal length), and u have background (say a building) is 50 meter away. your distance ratio you to subject to the building is 1:2.
say 50/1.4 = 35 only (low, booo). but u can stand only 5 meter away to get the same composition, and u only require 1/60 speed to get a sharp picture, and... the fun part, the bokeh ratio rule of thumb that people uses too (which is not very accurate too) is that, my distance to subject to building is 1:10! wont i have a
greater bokeh?
so i proved that focal length divide by largest aperture bokeh index is a myth...
Added on April 1, 2011, 3:33 pmQUOTE(azamunekurone @ Apr 1 2011, 03:18 PM)
i got a good buy with the imitation p type filter :adapter ring+holder+GND+ND4+ND8 = RM126
if u gonna buy the ori one,last i ask about rm100 more than the imitation all complete excluding the GND
but i think its a good buy la the P series.no need to buy a color filter one coz u can already done it in photoshop.better buy the big stopper type of filter!
better savings for the 16-35z..its a good buy la

uhuhuh easily rm200-300 more lerrr... >.<
now i buy all imitation ring adapter and step up ringsss.
This post has been edited by ieR: Apr 1 2011, 03:34 PM