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12-19-2007, 06:21 AM   #16
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You can leave it on permanently, but due to the way it works, it reduces the exposure by about 1.3 stops (that's what I've been told - ie the exposure value - I know it cuts out light transmission, it's a physics thing) Not so good indoors.

You can see the results when looking through the viewfinder on the camera, on the screen, and on the computer.

12-19-2007, 09:05 AM   #17
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What MoFo said, although I've heard it's actually closer to 2 stops. You can use it indoors, but it won't really be doing anything other than acting like an ND filter at this point, so you will need a lot more light to get usable shutter speeds. What I ususally do, is keep it on the lens, and if I need to use it outdoors, I just pop of the lens cap. If I need to use it indoors, I just unscrew the filter with the cap in place.
12-19-2007, 02:43 PM   #18
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QuoteOriginally posted by weaponx525 Quote
Jodokast96, can the polarizer be kept on the camera lens at all time ie indoors or is it mostly used for outdoor photography? I was also wondering if you can actually see the difference on your camera's LCD or will you only be able to see the difference once you transport the images onto the computer? TIA.
Sure, you can leave it on. BUT you lose 2 stops of light, so indoors you will lose more jacking up the ISO than you will gain on reflection control.
12-19-2007, 02:49 PM   #19
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I've been slapped down here before for saying this, but what the heck.

You do not need a circular polariser with the K10D.

A linear polariser works fine (I have two - Hoya and Cokin P).

It does not mess up the metering, or the AF.

12-19-2007, 02:58 PM   #20
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Of course it isn't limited to circular filters only. You just need to decide which is better for you, linear, or circular, and go with that one. Either will work just fine on your camera.
12-19-2007, 03:49 PM   #21
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QuoteOriginally posted by travis_cooper Quote
Either will work just fine on your camera.
Lots of people don't believe this, because they've read otherwise.

I figure the extra money for the CP is like a fee for not having to do your own research.
12-19-2007, 04:56 PM   #22
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Travis said to decide which polarizer is better for you. What kind of difference, image wise, will you obtain between the linear and circular?
12-19-2007, 05:13 PM   #23
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QuoteOriginally posted by ChrisA Quote
I've been slapped down here before for saying this, but what the heck.

You do not need a circular polariser with the K10D.

A linear polariser works fine (I have two - Hoya and Cokin P).

It does not mess up the metering, or the AF.
I know it messes up the focus of a Nikon D70s. Not a huge amount, but most shots are just not as sharp as when a circular polarizer is used. OTOH, folks that shoot jpg and boost sharpness probably would not notice.

12-19-2007, 06:41 PM   #24
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good ? weaponx525 I was wondering the same thing.
12-19-2007, 10:29 PM   #25
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I have used a circular polarized lens indoors, but it will reduce the light to the sensor a few stops. It works well with a flash though, if you are trying to control unwanted shine when photographing people with darker complexions.
12-23-2007, 06:29 PM   #26
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QuoteOriginally posted by jmdeegan Quote
D'oh! If only I'd known that was what the tab was for....i was getting annoyed on my cruise, either keeping the hood off or being happy I was using the lens without the polarizer.

Live and learn LOL
ermmm... what tab are we talking about?
12-23-2007, 07:49 PM   #27
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The removable piece from the Pentax lens hoods.
12-23-2007, 10:39 PM   #28
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QuoteOriginally posted by Jodokast96 Quote
The removable piece from the Pentax lens hoods.
The one I have butchered cap keepers to not lose when I unclip them.
12-24-2007, 06:13 AM   #29
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Yeah, I wish I had thought of that. Mine somehow fell out of my pocket the first time I used it.
12-27-2007, 10:30 AM   #30
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QuoteOriginally posted by weaponx525 Quote
Jodokast96, can the polarizer be kept on the camera lens at all time ie indoors or is it mostly used for outdoor photography? I was also wondering if you can actually see the difference on your camera's LCD or will you only be able to see the difference once you transport the images onto the computer? TIA.
The polarizer is meant for outdoor use, to cut down on glare and reflections. I'd only use it indoors if I were taking photos through windows, otherwise the filter will negatively affect your exposures. When I use a circular polarizer outdoors, depending on the time of day, I can immediately see a difference in my photos.
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