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Circular Polarisers the 2nd filter to buy for your camera.

The first filter to buy is obviously a UV Filter…. for two main reasons. Firstly they block UV … and secondly they are a great sacrificial part of the lens. Scratch the filter and you’re up for $50-100. Scratch the lens on the other hand… Also the filter will break first if you drop your camera, the lens tends to hit the ground first and the filter takes the shock and breaks.

But back to Polarisers…. Ever wondered how people get those amazing travel shots where the sky is a deep blue and the water a stunning green? And yet every photo you take is all washed out and even overblown?

Like this shot perhaps…

Without a Circular Polariser

The only difference between the above shot and this one is the Circular Polariser that was on the camera.

With a Circular Polariser

Now as you can see, this shot is a lot richer in its tones and colour. I should have shot the second shot a bit slower (to pull in a bit more light to compensate for the filter) but I took these shots to show the difference between with and without the filter. You will also notice that the filter has cut down dramatically on the reflection in the water showing the rocks just below the surface.

Settings for both shots were:
Camera:      Nikon D90
Lens: Tokina 11-16mm F2.8
Exposure:     0.003 sec (1/320)
Aperture:     f/8.0
Focal Length:     13 mm
ISO Speed:     200
Exposure Program:     Manual

Some people say don’t use Polarisers on really wide angle lenses like my Tokina 11-16mm. Or you get an effect like below. Now see, I liked the effect in this image… the dark banding across the sky helps weight the image to the side of the tower and results in a more dramatic effect. But one thing it does mean is that stitching a panorama can be nigh impossible (due to the colour banding across each shot). You could tweak the filter for each frame comparing it to the last (using a tripod to keep the camera steady).

Black Mountain Perspective

One thing to watch for in really wide lenses however is Vignetting (darkening in the corners of your shot, which is almost black). The Tokina 11-16mm at 11mm with a Polariser on is so wide and the filter so thick, that vignetting does show up in the corners of the shot. In most cases here I ended up shooting at 12mm or higher – just to keep the filter out of the shot. Sure I could crop out the vignetting later but pushing the lens that little bit saved me a lot of work in Lightroom later. (Best clicked through to see the large versions on Flickr)

With Vignetting

Vignetting Removed

The other issue is not touching the damned filter. It has taken me a while to get used to spinning the filter to the correct level or polarisation without touching the filter itself. Also watch for lens hoods… most of them even petal shaped hoods make it very tricking to reach the filter to move it. Now my fingers are not big mens hands either, so you may need to work out which works best for your lens and hood combination. The Tokina for example I just don’t bother with the hood when I have the filter on, the Sigma 18-200mm that I have is o.k – now that I have got used to it.

So if you are thinking about ever shooting water, sky, or the big landscape that is Australia go out and get yourself one of these filters now, in fact get more than one if you have more than one lens… you will not regret it for a minute and will be wondering why they hell you didn’t get one earlier.

Red Earth, Blue Sky Country

For more info read the Wikipedia link on Polarising Filters

Putting the #wtrip09 5000KM across Australia into perspective.

Now Australia is a big country….  a very big and very empty country.

The #wtrip09 drive ended up being 5025km so all the side trips added 800km more than the planned route.  But that was not a surprise…

So here it the route I had planned (still cleaning up the KML files) then compare what kind of road trip that would have been below…

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Or 400km less is this drive

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Or only 100km more…

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Or 200km less than what I did would be this drive…

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And 200km more is this trip….

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or across China

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One of these days I might even do some of these drives….