Is Kenko accpetable? B+W is the most expensive one i suppose....
I personally do not like Kenko.
Is Kenko accpetable? B+W is the most expensive one i suppose....
Hmmm... so.. meaning to say, mine does rotates?
By the way, nice pictures u have there. I'll look for a 58mm CPL Filter. Does brand matters? Or would it be better to get a Hoya one?
the filter looks uniform (like a sunglass), but isn't.I do not understand how CPL Filter works.
So... meaning to say, the filter itself is not the same throughout its whole surface?
(For eg, not whole thing black. Some black some white)
Hence, if the lens rotate, it will produce different results?
Yes, my Canon lens rotates.
Im on EF-S 18-55mm IS and EF-S 55-250mm IS.
They do rotate when it Auto Focus. U hear the sound "chee chee", then it rotates, then it focuses.
Rotate on focus? Sorry, don't really understand this part
As far as i know, it only rotates when it is trying to focus, the Auto Focus function in the lens. Other than that, it doesn't rotate.
Ok, i'll get the CPL Filter. Anyway, can i ask as well, how about CPL vs HMC filters? I read that HMC removes the reflections as well, but they dont saturate the colours. Do they have any major differences?
Rotate on focus? Sorry, don't really understand this part
As far as i know, it only rotates when it is trying to focus, the Auto Focus function in the lens. Other than that, it doesn't rotate.
Ok, i'll get the CPL Filter. Anyway, can i ask as well, how about CPL vs HMC filters? I read that HMC removes the reflections as well, but they dont saturate the colours. Do they have any major differences?
To overcome rotating lens on focus:
1. Manually focus
2. Rotate polariser after focusing
Understood. So i should focus the shot first, then adjust the polarizer itself again, right?
Manual focus.
Right! :thumbsup:
Ok... So i should manual focus it first, then put on the polarizer filter, correct?
You can manually focus with the polariser attached on a bright sunny day; otherwise you'll need another pair of hands.
I'm normally switch back to my Prosumer camera when using a CPL filter because the focusing does not affect the setting of the CPL filter.
You can manually focus with the polariser attached on a bright sunny day; otherwise you'll need another pair of hands.
I'm normally switch back to my Prosumer camera when using a CPL filter because the focusing does not affect the setting of the CPL filter.
Maybe i will buy one and try first, if the 550D can auto-focus with the CPL filter.
If it can't, then i'll just have to use manual-focus
It's hard to find Linear Polarizer these days. Majority of all polarizing filters are CPL.Oh wait, i think there is this circular vs linear polarizer. The circular would work with auto-focus?
$40 is not much cheaper than a Hoya one (I think $50+), so might as well splurge a bit more...Saw a Phottix CPL 67mm at the PC show cost $40 at the Phottix/Eastgear booth, but i believe this is a cheapo brand and should not get it ?:dunno:
Understood! Basically i understand the theory, but i guess its still better to hands on it myself to really understand it perfectly :thumbsup:
To sum it up, u mean:
If i auto-focus to that particular frame i want to capture, then i re-adjust the polarizer so that the effects are at its best. Then, capture the shot again in the same frame, because the focus will not move, or will not have moved much since its still roughly the same frame :thumbsup:
you don't capture the shot AGAIN. You only capture one shot
Basically I think you shouldn't try to memorize steps. Can get quite confusing. Easier to understand the principle.
Just know that
1) The front section of your lens rotates during focusing
2) The CPL filter is screwed onto the thread at the front section
3) The CPL filter needs to be rotated to the appropriate angle to achieve the desired polarization