Road Train !!!!!!!!!!

by Russell McMahon

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Take the 2-minute tour ×
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It's 100% free, no registration required.

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 photographs.

My camera is: Canon 60D

My lens is: Canon 70-200, 4f L

Thanks in Advance.

share|improve this question

marked as duplicate by MikeW, mattdm, dpollitt, Olin Lathrop, AJ Henderson Sep 13 '13 at 13:35

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1  
    
Downvoted as this is a duplicate of an existing question. –  Global nomad Sep 13 '13 at 7:42
3  
Why are you planning to buy something you know nothing about? –  Philip Kendall Sep 13 '13 at 7:43

2 Answers 2

You have a 60D, so I assume it's well within your budget. Also, looking at your lens, I think I can assume you photograph outdoor's quite a bit.

A polarizing filter is not necessary but a really useful filter. It lets you do two important things:

  1. It can improve the sky in your photo a lot: enter image description here

  2. It will take care of most of the unwanted reflections: enter image description here

Most of these effects can't be achieved properly by postprocessing. Read the Wikipedia for more info.

share|improve this answer

Basically the polarizing filters remove a part of light reflected by surfaces such as

  • water droplets forming haze (as in Nick's example #1),
  • glass (as in Nick's example #2),
  • (see|river|pool) water surface

The magnitude of that effect depends on the angle between the filter axis (you can rotate it) and the axis perpendicular to the reflecting surface.

However, the orientation of the part of droplets surface reflecting the sun towards you is not oriented the same way for droplets that are towards the sun and for droplets 90° from it. So your filter will be most efficient in one direction and not at all in an other.

Therefore it will be more or less efficient at "removing" haze, depending on where you aim; that makes sometimes strange effects on wide-angle landscape shots.

Also take care that polarizing filters change color balance to some extent. That's not a big deal most of the time.

Now for your original question : it totally depends on the kind of pictures you intend to take. It's quite a must-have for landscape photography, or if you're shooting through glass surfaces (windows), but it adds little to many other cases.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.