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

learn more… | top users | synonyms

0
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1answer
62 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
2answers
4k 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 ...
1
vote
2answers
91 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 ...
1
vote
2answers
214 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 ...
0
votes
1answer
44 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
67 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 ...
2
votes
1answer
136 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 ...
5
votes
2answers
125 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 ...
1
vote
1answer
137 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 ...
2
votes
2answers
930 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 ...
1
vote
0answers
82 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 ...
0
votes
1answer
102 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
87 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
672 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
198 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
183 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
786 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
242 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
460 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
410 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 ...
2
votes
2answers
531 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 ...
10
votes
5answers
4k views

Is it wise to use polarizing filters with wide-angle lenses?

I've been looking into whether to use a regular UV or polarizing filter for a 16mm wide-angle lens and have found that a large number of people believe that you should never use a polarizer with a ...
-1
votes
2answers
140 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
117 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
207 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 ...
3
votes
2answers
380 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 ...
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
446 views

Are these ghost light spots and vertical grain indication that my scratched polarizer is ruined?

Earlier, I unfortunately dropped my polarizer. There doesn't seem to be any damage save for a light scratch which I've uncovered only after a very thorough inspection. Nonetheless, I'm worried that ...
2
votes
1answer
238 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
5answers
4k 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
106 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
613 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 ...
4
votes
1answer
436 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
4answers
3k views

Should I choose Hoya HD CP or Nikon CP II polarization filters?

I am looking for a polarization filter for a couple of my lenses. I have heard great things about Nikon CP filters and I am using Nikon NC filters myself on some of my most precious lenses. However, ...
8
votes
3answers
938 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 ...
7
votes
3answers
1k 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?
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 ...
3
votes
1answer
328 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
409 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
210 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 ...
7
votes
3answers
2k views

Is it possible to use a polarizer and a ND filter at the same time?

Is is possible to use two filters (one polarizing and one ND) at the same time on a 18-55 kit lens from Canon. I am new to photography and wanted to work with filters. Do you suggest me buy these ...
1
vote
1answer
237 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 ...
11
votes
4answers
5k 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) ...
15
votes
7answers
7k views

What is the difference between using an ND filter versus 2 polarizers?

I know what an ND filter does. I know what a polarizer does. I also know what two polarizers stacked together and rotated properly do. So the question: why should I use an ND filter to achieve a ...
5
votes
2answers
302 views

Why are doubled polarization filters as continuous ND not popular? [duplicate]

Possible Duplicate: What is the difference between using an ND filter versus 2 polarizers? One thing I was always wondering when it comes to ND filters is why there's need for such a large ...
3
votes
3answers
2k views

Would a polarizing filter help get better images from a security camera pointed out a window?

I'm evaluating some security cameras for home use. To avoid vandalism, I'm probably going to have to position the cameras inside the house, facing out the windows into a not very intense southern ...
16
votes
0answers
4k views

What should I look for in a polarising filter? [duplicate]

I am wanting to invest in a polarising filter for my camera (a Canon T2i/550D). What sort of things should I be looking for? What differentiates a good polariser from a bad one? Are there any brands ...
12
votes
3answers
2k views

How to photograph a snowy landscape?

I am about visit Nepal for 8 weeks, planning to trek the Annapurna circuit, Everest Base Camp and Imja Tse. Most of the landscape is extremely bright and snowy. Credit: Gianni Scopinaro How do I ...
4
votes
1answer
290 views

What do all the polarizing filter acronyms mean?

I was shopping for a decent polarizing filter for my camera, but I got confused by all the acronyms and the variance in prices. For example in B&H stores, you can filter by Polarizer Combination: ...