Tokina 67mm CPL or Hoya CPL?


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monkster

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Feb 14, 2006
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#1
Hi,

I bought a Tokina 67mm CPL Optical Filter few days back and discovered that one side of the glass is very smooth and clear while the other side is spotty, like with uncleanable oil/water stains.

I'm bringing it to exchange, but I'm wondering if I should exchange (perhaps pay a little more?) for the Hoya version?

What do you think?
 

monkster

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#3
looks good, thanks!

Too bad don't have Hoya ones to compare. I'll search the web.
 

lsisaxon

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Nov 29, 2004
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#4
Hi,

I bought a Tokina 67mm CPL Optical Filter few days back and discovered that one side of the glass is very smooth and clear while the other side is spotty, like with uncleanable oil/water stains.

I'm bringing it to exchange, but I'm wondering if I should exchange (perhaps pay a little more?) for the Hoya version?

What do you think?
If I don't remember wrongly, I think they are the same thing. Can't remember if it's Hoya who made for Tokina or the other way round.
 

monkster

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#5
If I don't remember wrongly, I think they are the same thing. Can't remember if it's Hoya who made for Tokina or the other way round.
Went to John 3:16 yesterday and the guy kindly opened up the Hoya for me to see. I compared to my Tokina one and the Hoya seems ligher in colour to my dark Tokina...

But I did read the Hoya supplies lenses to Tokina.
 

lsisaxon

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Nov 29, 2004
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#6
Went to John 3:16 yesterday and the guy kindly opened up the Hoya for me to see. I compared to my Tokina one and the Hoya seems ligher in colour to my dark Tokina...

But I did read the Hoya supplies lenses to Tokina.
Hmm. Interesting. Then they should be different. Maybe it's only the HMC Super skylight filter that's supposedly the same. :dunno:
 

monkster

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So since one supplies to another... I assume they should be about the same bah, no need to spend extra money on the Hoya?
 

monkster

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#9
Just went to change. Wanted to change back to Tokina CPL but they were out, so I paid a bit more for the Hoya, which, at the back, said, "Manufactured by Tokina".

So I guess it's Tokina making for Hoya...
 

ExplorerZ

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Jan 9, 2006
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#10
Just went to change. Wanted to change back to Tokina CPL but they were out, so I paid a bit more for the Hoya, which, at the back, said, "Manufactured by Tokina".

So I guess it's Tokina making for Hoya...
yup.. most if not all hoya filters were made by tokina, but somehow i feel that hoya is better... could be due to me favouring hoya more =x. but i think most tokina filters come uncoated, while there are coated ones from hoya
 

monkster

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I read that the polarizing filter can be adjusted (rotated).

My Hoya one cannot be spun, so how to adjust? Unscrew it somewhat?
 

lsisaxon

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Nov 29, 2004
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#14
there're 2 types - linear and circular polarizers. circular polarizer is the one that can be rotated.
Both Linear Pol and Circular Pol can be rotated. Those that cannot rotate are ND (neutral density) filters, not polarizing filters.
 

monkster

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#15
hmmmm the casing says CPL.

The Tokina one I had could be rotated when I screwed it onto the lens, but not the new Hoya one I exchanged it for yesterday.

It seems the only way to rotate it is to unscrew it a little?
 

lastboltnut

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Mar 23, 2006
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#17
Polariser doesn't work if cannot rotate the two pieces relatively....the lightwave cancellation will always be the same angle......not good. So must be able to rotate.

there're 2 types - linear and circular polarizers. circular polarizer is the one that can be rotated.
 

scandisk

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Feb 12, 2005
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#18
Both Linear Pol and Circular Pol can be rotated. Those that cannot rotate are ND (neutral density) filters, not polarizing filters.
Polariser doesn't work if cannot rotate the two pieces relatively....the lightwave cancellation will always be the same angle......not good. So must be able to rotate.
ok ok learn something here....i thot one cannot be rotated :kok: :bsmilie:
 

lsisaxon

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Nov 29, 2004
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#19
then what are the different effects the linear and cpl have on pictures taken ?? different contrast in the colours ??
IMO, linear pol works more effectively but unfortunately, they will affect the AF of modern SLRs where the sensor is under the main mirror, so in the central portion, it's actually a half mirror for some of the light to pass to the AF sensor. Unfortunately, a half mirror is by nature a linear polarizer also, so if you used a linear polarizer, at certain polarization angle, the light will not penetrate the half mirror to get to the AF sensor.
 

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