Digital Diversity

I previously wrote an article on basic exposure blending. This was a basic guide on how to create multiple exposures using either exposure bracketing or a single RAW file and then blending them together. This tutorial is a more advanced version of this technique where you take one RAW shot that is exposed correctly for the land and then sky is recovered afterwards and saved as a second file. These 2 files can then be blended together using masks. To finish off, this tutorial will show you how to use photo filters to alter the light in your image.

For this tutorial it will help if you already now the following:
• Layers and Masks
• Photo Filters

This shot was taken from the top of the Scottish history museum. Its just a throw away shot really, not sharp and not that interesting but will be a good example to show off this technique.

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Canons 70-200 range are fairly well known for their high quality and being some of the best zoom lenses you can buy from Canons range. There are (at the time of writing) 5 versions of this lens available. 2 versions at F4 and 3 versions at f2.8:
Canon 70-200 F4
Canon 70-200 F4 IS
Canon 70-200 F2.8
Canon 70-200 F2.8 IS
Canon 70-200 F2.8 IS mkII

After using the canon 55-250 IS for some time I found it a great set of focal lengths for shooting nature and wildlife that I can get relatively close to. For this reason I have had my eye on getting one of the 70-200′s as a replacement. The problem with these lenses is price. They aren’t cheap. The most reasonably priced one by far is the Canon 70-200 f4 without IS (image stabilization). To get the version with IS costs almost double the price and that is something I cant afford to do at this point in my life. So this clearly led me to purchase the non IS version.

Canon 70-200 F4 L, size - 76x172mm, weight - 705g

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A while back I wrote an article about my first time going to the zoo with the intent to take decent pictures, rather than just on a day out with friends. That was back when I was using a superzoom bridge camera (Panasonic FZ28). I came away from that trip with some images I was very pleased with and was surprised at the decent quality shots such a camera allowed me to get over the likes of a cheaper compact like my Ixus 75.

I have been back to the zoo since then with my DSLR (Canon 500D) and thought it would be good to share my thoughts on what advantages I had this time round with a more advanced camera.
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