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a type of filter used to reduce oblique reflections and increase color saturation

learn more… | top users | synonyms

3
votes
2answers
74 views

Quickly Move A Circular Polariser Between Lenses

I have sausage fingers and often shoot in cold and wind. I have a 77mm circular polariser and rings that I leave on my lenses that step them up to 77mm. I find screwing and unscrewing the polariser an ...
2
votes
2answers
83 views

Polarizing filter works only by rotating camera

I have an olympus E-PL1 mirrorless camera. I recently got a Hoya HD circular polarizer for use with a wide angle lens. Using it, I initially found that there was no varying polarizing effect as I turn ...
9
votes
4answers
345 views

Circular polarizer works great at shorter focal lengths, but significantly degrades the image at longer lengths. Why?

I bought a cheap CP recently to play around with, and noticed an interesting phenomenon: Using it with my 24mm lens on full-frame, images turn out tack-sharp - there is hardly any difference in ...
1
vote
2answers
89 views

Is my CPL faulty?

I recently a got a CPL filter for my camera. It is manufactured by a company called Massa. I tired playing around with it but never figured it out. The only thing it is does is make my photo ...
1
vote
2answers
54 views

Do circular polarizer gels for creating left and right handed polarized light exist? [duplicate]

I am looking for a polarizer gel for our lights, but specifically one for creating left or right handed circular polarization. I can find linear gels all over the place. I can even find circular ...
4
votes
2answers
107 views

Can I use a polarizing filter as a neutral density filter to create motion blur on airplane photos?

Context Looking at the answer on How do I take pictures of planes flying at an airshow? I see that many of the shots have blurry rotors. I'm currently shooting at (210mm (1.5x crop), ISO 100, 1/800, ...
1
vote
0answers
39 views

Are polarising filters absolutely needed or can the effect be created in post processing? [duplicate]

I am new to photography, just upgraded from a Sony Cybershot to Canon Rebel T6i. I recently shot a lot of landscapes and found they are lacking the punch present in most usual shots. After some ...
2
votes
1answer
42 views

How to prevent reflections from overhead lighting?

I was taking pictures of a desk in an office with overhead lighting. The light reflected off the desk and created shiny spots on the desk so that it wasn't uniform. Is there a way to prevent this? ...
1
vote
1answer
61 views

What are the Hoya circular polarizer types?

I have a Canon 18-55mm lens. I want to buy a new polarizer for it. The diameter of my lens is 58mm. I want to go for Hoya. But there are 5 or 6 different circular polarizers of Hoya for 58mm diameter. ...
0
votes
1answer
40 views

Polarising lens size for Nikon D7000 [duplicate]

I have a Nikon D7000 and need to buy a polarising lens but don't know what size lens I need. I have the the starter kit lens AF-S Nikkor 18-105mm1.35-5.6g ED. I'm new to photography.
1
vote
2answers
111 views

In what type of conditions do I use a polarizer on a 300mm lens?

I found the questions relating to polarizers, but haven't found any info on a 300mm zoom lens with a polarizer. Is this because it is not suggested to be used on 300mm zoom lenses? I use this lens to ...
0
votes
1answer
140 views

How can I use a polarizing filter with my Canon Powershot G15?

I am about to be in Utah for about 3 months for work, and rather than lugging my full DSLR kit I am only going to take my Canon G15. However with the landscapes and skies I expect to see, I know that ...
2
votes
1answer
116 views

Gel circular polarising filter

I am contemplating buying a lens that only takes rear gel filters. Is it possible to buy a circular polarising filter in gel format? If so, who can supply them (preferably UK based)?
2
votes
1answer
109 views

Why do phase-detection focusing sensors not like linearly polarized light?

I learned that polarizers did not work with autofocus and we had to get new "CPL" filters, 27 years ago. I even understand how they work and the nature of the light produced, which was a lot more ...
5
votes
2answers
145 views

Is direct sunlight reflected from white animal fur affected by a polarizer?

I have a friend with a bright white cat. Photographs of this cat outdoors in direct sunlight feature either a glowing white blob or very underexposed surroundings, depending on what the ...
2
votes
1answer
213 views

Polarizing filter causing soft, hazy shots?

I'm having a problem with a polarizing filter that's I've used for years. I have a Nikon D7000 w/18-200mm lens. I keep a UV filter on the lens, and on occasion I add a circular polarizer, which just ...
1
vote
0answers
86 views

Recognize dry areas by separating diffuse and specular reflections [closed]

This is a machine vision/imaging sort of a problem where we wish to detect dry areas on mostly wet surface. In order to reliably do that we'd like to optimize the imaging side of it. At the moment ...
1
vote
1answer
188 views

Add an orientation mark to a polarizing filter's rotating ring

I love the effect a polarizing filter can have when used appropriately; less so the need to rotate the filter around to work out its current orientation. I like the idea of adding a clearly visible ...
1
vote
2answers
337 views

While stacking filters, can polarizing filter be placed behind ND filters?

I have a ND filter (10-stop, 100mmX100mm square size) with a filter holder. The filter holder (similar to LEE or Formatt-Hitech holders) connects to the camera with a screw-in adapter (77mm and ...
5
votes
2answers
2k views

What do I need to know about using a polarizing filter at night?

I am into night photography, and am looking at buying a polarizing filter. What particular advantages and challenges are there to using a polarizing filter at night? reflections from light on ...
0
votes
1answer
124 views

Using a linear polarizing filter with a DSLR [duplicate]

Can I use a linear polarizing filter with a DSLR camera in manual mode?
0
votes
1answer
92 views

Which polarizer is better [duplicate]

I have been looking at get a polarizer and some nd filters for my sigma 50mm art lense. From my research, it looks like the best are B+W and Hoya. Does anybody have any experience with either brand on ...
3
votes
2answers
827 views

how to use a circular polarizing filter [duplicate]

I am testing out a B+W 49mm Circular Polarizer filter, but there is no marking, or indication where the starting position supposed to be. If the filter is supposed to be turned to turn polarization ...
0
votes
1answer
227 views

Why does the use of multiple filters create vignetting?

Recently I have had vignetting problem with my Sigma 18-200mm f/3.5-6.3 DC OS HSM (72mm) After checking, it is specified in the manual that one should not use multiple filters or thick filter (as ...
0
votes
1answer
239 views

Usefulness of a Broken Polarizing Filter

I picked up my camera bag a few days ago, which was not zipped shut. Out fell two of my lenses. In the process I broke the focus motor on one lens and cracked a Hoya HD polarizing filter on the other ...
2
votes
2answers
923 views

Can looking at a computer screen show the difference between linear and circular polarizing filters?

About the difference between linear and circular polarizing filters (quite well developed on this Q&R): What is the effect of placing those filters in front of a computer screen? I have seen two ...
6
votes
3answers
256 views

How does a polarizing filter work?

I know what a polarizer does to the light, and how it works technically (filtering out some of the oscillation directions of the electromagnetic radiation), and also how this affects pictures ...
6
votes
3answers
507 views

Do I need a polariser for winter sports?

This will be my first year taking my DSLR to the slopes, I want to get the best pics possible. I have thought for a long time that the main thing I would need is a circular polariser to eliminate ...
1
vote
2answers
484 views

Can a circular polarizer filter cause noisy images?

I am using a Canon 450D with 17-85mm Canon lens. I noticed that the image is very noisy when I use my CPL filter. Is my filter bad quality or is this normal? I notice this especially when I take RAW ...
-1
votes
2answers
150 views

Polarizing filter [duplicate]

I am new in photography. I am planning to buy a "Polarizing filter" for my lens. Actually, I know very little about this filter. So, I am not sure, does it really necessary to take good color ...
0
votes
2answers
134 views

Homogeneity of a filter, when does it matter?

I read a review of circular polarizing filters in www.lenstip.com and one of the tests is to judge the homogeneity of the filters. Quote from the test explanation page: Homogeneity is a ...
3
votes
3answers
264 views

How do I keep a polarising filter from coming loose?

I've got a certain lens + filter combination that won't work well together. My polarising filter keeps coming loose when I rotate it. Is there a trick to keeping it attached, like putting something ...
2
votes
2answers
709 views

Is it possible to safely disassemble a polarizing filter?

I just purchased an Hoya PL-CIR filter off craiglists (I'm starting photography and it was cheap) and it looks like there is some dust/dirt between the two lenses. Is there a way to safely ...
11
votes
5answers
1k views

What is causing this extreme glossy effect when using a polarizing filter?

I have noted a few times at car shows and events when processing my images that some have what i can only call an extreme gloss effect - OK this car was shiny, but the image looks very striking and ...
3
votes
2answers
498 views

Do I need a slim or normal polarized filter for a Tokina 11-16mm wide angle lens?

I have a Canon T3i body and I recently bought the Tokina wide angle lens for landscape and astro-photography. I am looking to buy a polarizing filter, but I'm not sure if I should get the slim or the ...
2
votes
1answer
304 views

Circular Polarization and Passive autofocus [duplicate]

Couple of weeks ago, I was assigned a homework in one of my Applied Physics master's course. My professor asked to explain why passive autofocus works only with circular polarizers. I am not a very ...
3
votes
6answers
5k views

Is there any reason to place polarizer filter before ND graduated one?

Is there any reason to place polarizer filter before (the first in stack) ND or/and ND graduated one (for example as we can see on Lee 105 mm ring)? Is there any technical reason to do that or it's a ...
3
votes
1answer
110 views

Why do some polarizers transmit more light then others?

How do filters such as the Singh-Ray LB Polarizer transmit more light then other circular polarizers? I am particularly interested in this technology because they claim to only add 1-1/3 stop to the ...
2
votes
2answers
722 views

Are neutral density filters or polarizers better for a desert environment? Or another filter?

Desert environment includes actual desert, some water (yes, I said that), some (dusty) city scenes, some POSSIBLY shiny buildings and pools of water. The research on this suggests that ND polarizers ...
5
votes
1answer
514 views

How does a circular polarizer affect the “stars” from strong lights at night?

When taking night photos at narrower apertures strong light sources such as streetlights demonstrate a star effect based on the number of blades in the lens' aperture. What effect would a polarizer ...
3
votes
2answers
1k views

What type and size of polarizing is needed for a Canon Rebel T4i [duplicate]

Possible Duplicate: How do I find the right size of filters for a lens? I am in the process of buying a new camera. I am getting 18-55mm lens and a 55-250 lens what size of polarizing lens ...
7
votes
4answers
2k views

How can I fix a sticky polarizing filter?

I took a gamble and bought a used B+W Circular Polarizer off eBay. The filter looks great but the adjusting ring is a little bit sticky. Is there some way to lubricate this?
2
votes
2answers
5k views

How do Rodenstock filters compare to B+W, Heliopan, and Hoya HD?

I am looking for a good filter for my 67mm thread lens. I have good experience with the Hoya 8Layer HD cir-pol filter and I really like that it is not as dark as other filters, but it is very ...
9
votes
3answers
1k views

Circular polarizer in underwater photography?

Today, I was watching a underwater video and suddenly asked myself if anyone has used a circular polarizer or polarizer in underwater shots or videos? I searched on the internet but nothing ...
3
votes
1answer
348 views

What kind of special effects can be created using polarizing filters?

From what I have read so far (this question in particular), CPL filters are good for darkening skys and improving image contrast by cutting down unwanted reflections. Apart from this, for some ...
5
votes
2answers
448 views

Product shot of a vase with decals: reflections obscuring decals

I'm having trouble getting a good photo of a round base vase. It has a shiny round bulbous base with a decal which is being obscured by reflections. I've tried using a number of lights, umbrellas, ...
3
votes
1answer
214 views

What are the benefits of a multi-coated CP filter over a regular CP filter?

I would like to purchase CP filters for at least 2 of my lenses. I can go with either the lower cost regular CP filter or the HMC Multi-Coated CP filter. THe multi-coated filter is almost double the ...
8
votes
3answers
4k views

Is it worth buying an expensive CPL filter over an e-bay cheap one?

I have already got a circular polarizer filter (CPL) filter for my canon EF-S 18-55mm and it is working fine, although the quality goes down a bit compared to when I don't have the filter on, but its ...
1
vote
1answer
253 views

Is there such a thing as a filter for circularly polarized light for photographic use, and what would be the effect of using one?

I was under the assumption that a circular polarizing filter would filter circularly polarized light. I now understand that what is commonly called a circular polarizing filter only filters based on ...
12
votes
4answers
6k views

Screw-in or square filters in the field?

I currently carry a circular polarizer and a screw-in 4X ND with me in the field. I've decided it's time to upgrade my filters, because there are too many times when I really need an 8X ND (or more) ...