Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

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

learn more… | top users | synonyms

14
votes
4answers
7k 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) ...
6
votes
2answers
318 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 ...
3
votes
2answers
479 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 ...
12
votes
3answers
3k 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
304 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: ...
4
votes
1answer
636 views

How to prevent weird spots and stripes on photos of window glass?

A few days ago I took photos of a nice curvy business center in another city. Later I discovered that many frames had weird artifacts on the glass, shown below as 100% crops. An almost normal shot: ...
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 ...
2
votes
2answers
124 views

Is this a good polariser and is it for an appropriate price?

I'm thinking about purchasing Hoya HD 58mm Circular Polariser and I was wondering whether it's a good choice and also whether it's for an appropriate price. What do you guys think?
15
votes
9answers
8k 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 ...
13
votes
1answer
235 views

Is it normal for a small portion of a polarized lens filter to appear unpolarized?

Just picked up my first polarized lens filter from Tiffen — a 52mm SR Polarizer. It looks like a small portion of the lens is NOT polarized, but this being my first lens, I wanted to confirm this ...
3
votes
4answers
4k 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, ...
14
votes
1answer
2k views

Can the effects of a polarizer be replicated in post-processing?

According to my knowledge Polarizing filters are mainly used to make sky appear more bluish in the day sunlight which gives more dramatic effect to your pictures. I don't have polarizing filters yet ...
8
votes
3answers
3k views

Why does a linear polarizer work as well as a circular one on a P&S camera?

I have just purchased a Canon SX30 IS and though extremely happy with it I will need to use a polarizing filter due to the fact that I am travelling to Indonesia to do volcano photography/landscape ...
13
votes
5answers
569 views

Why don't today's lenses come with a polarizer by default?

As I am now looking for a decent polarizer for my 18-105mm and 50mm (Nikon D80) I realized how important they are for outdoor photography. So why aren't they directly hard-mounted on every modern ...
4
votes
3answers
368 views

What is a source for small pieces of thin, high-quality, polarizing film for use with rear-filter lenses?

I have some pieces of polarizing film from polarization.com, which are reasonably good and not too expensive, but I have some problems with them: They are too thick (only just fit in the filter ...
11
votes
5answers
6k 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 ...
16
votes
3answers
3k views

How does one use circular polarizers?

I just purchased my first circular polarizer. I have read the thread here about when to use it, but I still have a question. How to use it? A friend told me to spin the polarizer until the sky ...
9
votes
4answers
825 views

Where can I find comparisons for linear polarizers (for a cheap variable ND filter)?

Does anyone know of any good comparisons for linear polarizers, similar to the excellent circular polarizer test done by LensTip? Unfortunately, a number of those manufacturers don't offer the same ...
13
votes
3answers
6k views

What are the consequences of stacking a circular polarizer on top of a UV filter?

The reason I'm asking this is that I don't have a circular polarizer yet and I'm planning to buy one. I know I'll be too lazy to unscrew the UV filter to put on the polarizer. I'm wondering whether ...
23
votes
10answers
4k views

How do I choose a polarizer?

It was suggested that I should get myself a polarizer filter to get over my reflection problem. ( How to avoid reflection when taking a picture of a ceramic object with a shiny glaze? ) I found out ...
14
votes
0answers
624 views

Is it possible to use two polarised filters to create a variable ND filter? [duplicate]

Possible Duplicate: What is the difference between using an ND filter versus 2 polarizers? I was reading that by attaching two polarised filter we could create a variable ND filter. Has ...
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 ...
30
votes
3answers
2k views

What is the difference between a linear and a circular polarizer?

When I bought my polarizer, a friend told me that I should get a circular one, because the linear ones can mess with the autofocus. Is this true? What should each be used for?
34
votes
5answers
6k views

In which situations should I use my circular polarizing filter?

I received a circular polarizing filter as a gift, but I have a hard time determining when I should be using it. I've done river shots with some success, but other than that, it doesn't seem to do ...