I heard that polarising filters are used by adjusting it's angle. So lens which has the front part spinning while focusing can hardly use it... So any solution to this?

THANKS!

use finger of ur left hand to hold it lor...

Assuming the adjustable polarizing filter you are talking about is a CPL...

I would say use manual focus. Or if you want to AF, make sure you compose your shot, lock AF and then adjust your CPL.

Otherwise, your only option is linear polarizing filter which is not adjustable. And will not interfere with normal AF.

Normally I will focus... then focus lock, then re-adjust CPL

I agree on that... Have to manual focus in this case, then adjust CPL.

Anyway, it is always ok to manual focus for landscape shots, where you need your CPL the most.

I see.. so that's how you use CPL on these lens....Thank you for the reply

if you hand is super sensitive to the force of the motor, u can always hold the outer part of the CPL filter, and focus, since the CPL is made from 2 parts, the part u hold will stay as it is..but the only problem is the lens come in and out, ur hand has to follow to allow that, or lens, u might spoil ur lens..

thus, that is not recommended, just focus first, and adjust CPL, or use manual focus..

I do not have such problem because I do not have any front rotating lense.

Anyway, for landscape and scenery, I usually still use manual focus for optimum sharpness and coverage for the DoF. So it is still the same...

What lenses do u use for now that dont rotate the front part while focusing?

USM lenses Internal zoom.

// Deleted.... Some lenses la...

So far these lenses all do not rotate while autofocusing....

And from my experince with lots of Canon lenses, I cannot remember which actually rotating...

wow plenty of L lenses you've got there. You can have a lot of shooting styles with those gears you have.. Envy evny... haha...

BTW why do u need the EFS17-55 IS USM? << constant f2.8 right? since u already have 17-40 f4 L and ef 50 f1.4 USM.

if your camera can take up filter adapter then should be fine. instead of screwing cpl on objective lens you can use adapter.

never use a screw-in filter so that's just my 2 cent. i use cokin filter btw.

i also focus first...then only adjust my CPL...then baru click the shutter as the the barang edi focused.. so no nid worry..