snubbr.com

Polarising Filters
I saw a comment last week about needing a polarising filter when taking pix along the coast, at the Grand Canyon, etc..

Could someone explain to me in simple terms why?Sean..

Comments (8)

A polarising filter reduces specular reflections. In practice this means that reflections off (non-metallic) surfaces are substantially eliminated. THis could be anything from a reflection in a window to the sun reflecting off the forehead of a bald guy..

How does this help landscape photos? In bright sunlight, much of the 'glare' (that will make a blue sky appear white in a photo) is actually light reflected from dust particles in the air. Removal of this helps the sky to appear a richer, more saturated blue colour. here is an example:.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

It also gives vegetation a richer colour by eliminating reflected highlights which mask the green colour. So, in general, a polarising filter can help landscapes taken on sunny days to look more richly coloured and vibrant. It also helps in snow scenes by removing some the glare of reflected light form the snow..

A polarising filter is the easiest and cheapest way to 'pep up' landscape photos. Remember it won't make much difference on a cloudy day; also the magnitude of the effect depends on which direction you are facing with respect to the sun..

If you want one - and it would be a good idea for what you have in mind -(1) get a good brand - it's worth the extra..

(2) Get one that matches your largest lens filter thread, and use step down rings to fit the big filter onto the smaller lenses if you have any..

(3) Make sure you get a CIRCULAR polarising filter. The other kind (linear polarising filter) won't work properly on a DSLR..

(4) Don't overdo it; it looks great sometimes but can be a bit much if you use it all the time!.

Best wishesMike..

Comment #1

I've just bought a Nikon D300 with an 18-200 lens which will, I expect, be all I will use for a while. and, yes, I will get a matching Nikon brand filter..

ThanksSean..

Comment #2

Keep in mind that a polarizer filter will reduce the amount of light that comes into your lens..

More tips on using polarizer filter:.

POLARIZER TIPS.

TIP #1: How much a polarizer filter will darken a sky depends on the type of sky and your shooting angle in relation to the sun..

TIP #2: On a sunny day, position your shoulder towards the sun and your subject at a right angle to your shoulder. When the sun is high in the sky, maximum polarization will result along the horizon. When the sun is low in the sky, maximum polarization will result in all areas in front of and behind you..

TIP #3: A polarizer has very little effect when used under a gray, overcast sky..

TIP #4: Remove any protective lens filters when using a polarizer..

TIP #5: Use a polarizing filter indoors only for reducing relections and glare. Any color saturation will be minimal. Remember, a polarizer filter will effectively reduce your lens aperture by up to 2 f:stops..

TIP #6: Use a polarizer filter to control depth of field. This is similar to using a Neutral Density filter, except that the Neutral Density will render "neutral" colors, while the polarizer saturates colors. Neutral Density filters are available in greater light reducing densities than polarizers..

TIP #7: To distinguish a Circular Polarizer from a Linear Polarizer, turn the filter backwards and look through it into a mirror. If the filter image in the mirror is black, you have a circular polarizer. If the image is clear, you have a linear polarizer..

Tip # 8: A Polarizer tends to cool down the image. I find adding a Warm filter will restore warmth and a more natural image..

(source: http://www.geocities.com/COKINFILTERSYSTEM/polarizer.htm).

Rainbowhead. Started with photography in april '08.D forty. 18-55mm kit lens...

Comment #3

Msjhaffey wrote:.

I've just bought a Nikon D300 with an 18-200 lens which will, Iexpect, be all I will use for a while. and, yes, I will get amatching Nikon brand filter..

ThanksSean.

I wouldn't bother with the matching Nikon brand filter..

Hoya, B+W or Heliopan are excellent choices and are probably better made than the Nikon. Get the multicoated versions, of their circular polarizers and expect to pay $70 or more.A member of the rabble in good standing..

Comment #4

And they range in price from 20 to 117. What are the distinguishing characteristics I need to look for to distinguish one from the other?Sean..

Comment #5

Msjhaffey wrote:.

And they range in price from 20 to 117. What are thedistinguishing characteristics I need to look for to distinguish onefrom the other?Sean.

You want this one.

Http://www.bhphotovideo.com/.../Hoya_016683_72mm_Circular_Polarizer_HMC_.htmlA member of the rabble in good standing..

Comment #6

Thank you!.

This board is so friendly and useful. A great community.Sean..

Comment #7

Rainbowhead wrote:.

Keep in mind that a polarizer filter will reduce the amount of lightthat comes into your lens..

More tips on using polarizer filter:.

POLARIZER TIPS.

TIP #1: How much a polarizer filter will darken a sky depends on thetype of sky and your shooting angle in relation to the sun..

TIP #2: On a sunny day, position your shoulder towards the sun andyour subject at a right angle to your shoulder. When the sun is highin the sky, maximum polarization will result along the horizon. Whenthe sun is low in the sky, maximum polarization will result in allareas in front of and behind you..

TIP #3: A polarizer has very little effect when used under a gray,overcast sky..

TIP #4: Remove any protective lens filters when using a polarizer..

TIP #5: Use a polarizing filter indoors only for reducing relectionsand glare. Any color saturation will be minimal. Remember, apolarizer filter will effectively reduce your lens aperture by up to2 f:stops..

TIP #6: Use a polarizer filter to control depth of field. This issimilar to using a Neutral Density filter, except that the NeutralDensity will render "neutral" colors, while the polarizer saturatescolors. Neutral Density filters are available in greater lightreducing densities than polarizers..

TIP #7: To distinguish a Circular Polarizer from a Linear Polarizer,turn the filter backwards and look through it into a mirror. If thefilter image in the mirror is black, you have a circular polarizer.If the image is clear, you have a linear polarizer..

Tip # 8: A Polarizer tends to cool down the image. I find adding aWarm filter will restore warmth and a more natural image..

(source: http://www.geocities.com/COKINFILTERSYSTEM/polarizer.htm).

Rainbowhead. Started with photography in april '08.D forty. 18-55mm kit lens...

Comment #8

Click Here to View All...

Sponsored Amazon Deals:

1. Get big savings on Amazon warehouse deals.
2. Save up to 70% on Amazon Products.


This question was taken from a support group/message board and re-posted here so others can learn from it.

 

Categories: Home | Diet & Weight Management | Vitamins & Supplements | Herbs & Cleansing |

Sexual Health | Medifast Support | Nutrisystem Support | Medifast Questions |

Web Hosting | Web Hosts | Website Hosting | Hosting |

Web Hosting | GoDaddy | Digital Cameras | Best WebHosts |

Web Hosting FAQ | Web Hosts FAQ | Hosting FAQ | Hosting Group |

Hosting Questions | Camera Tips | Best Cameras To Buy | Best Cameras This Year |

Camera Q-A | Digital Cameras Q-A | Camera Forum | Nov 2010 - Cameras |

Oct 2010 - Cameras | Oct 2010 - DSLRs | Oct 2010 - Camera Tips | Sep 2010 - Cameras |

Sep 2010 - DSLRS | Sep 2010 - Camera Tips | Aug 2010 - Cameras | Aug 2010 - DSLR Tips |

Aug 2010 - Camera Tips | July 2010 - Cameras | July 2010 - Nikon Cameras | July 2010 - Canon Cameras |

July 2010 - Pentax Cameras | Medifast Recipes | Medifast Recipes Tips | Medifast Recipes Strategies |

Medifast Recipes Experiences | Medifast Recipes Group | Medifast Recipes Forum | Medifast Support Strategies |

Medifast Support Experiences |

 

(C) Copyright 2010 All rights reserved.