Imaging Topics

These articles have been published in the following New Zealand journals:

- The Photographer's Mail
- Dive New Zealand
- D-Photo

On the right you can find a small selection of my articles. They can be downloaded as PDF files.

Please respect my copyright.
If you want to use an article, or part of it, the source needs to be acknowledged. Please contact me if you need an article for publication.

All articles (currently a total of 107, December 08) are available on CD at a cost of NZ$45, including postage.

Here is a list of all 107 titles

Please contact me on

hans@digital-image.co.nz

Digital Sharpening I (Feb 04) - 1.3 MB
              Uncover the secrets around digital sharpening.
              This article shows you how the Unsharp Mask Filter works.

Digital Sharpening II (Mar 04) - 0.5 MB
              More advanced sharpening techniques ....
              My favourite is 'Smart Sharpening', but in some situations
              the High-pass filter technique is even better!

Layer Magic (Aug 04) - 0.4 MB
              Have you ever wondered what all these layer blending options
              can be used for? Layer Magic will show you ... 

Fixing an image without changing any pixels (Sep 04) - 0.4 MB
              You can save a dozen copies of a single photo to keep track
              of every editing step. Or you can save the original, all the
              editing steps and the final version - all in one file!

Photo Graphic (Oct 04) - 2.7 MB
              Black & White photography taken a step further.
              Discover how your photos look like in pure B&W, without any
              gray tones. This article also shows you how to make
              solarisations and how to turn your images into pencil sketches.

Digital Infrared (Nov 04) - 1.3 MB
              Capturing IR images is fairly simple with a digicam.
              Even without an IR filter you can have a go at IR simulation!

How many pixels do we need? (Feb 05) - 0.9 MB
              What is the optimum file resolution for monitor display and
              printing? This article will also explain the upsizing of digital files
              in Photoshop and with 3rd party software.

Digital Out-of-Focus (Mar 05) - 1.0 MB
              How to use the new Lens Blur filter in Photoshop CS or later.

Colour Management I (Apr 05) - 0.5 MB
              Colour management seems like magic if it works, or like
              black magic if it doesn't.
              This is the first of a series of 3 articles introducing you to the
              world of calibration, profiles, colour modes and colour spaces.

Archiving your Photo Collection I (Aug 06) - 0.6 MB
              All about Digital Asset Management (DAM), metadata, indexing with
              keywords and how to effectively retrieve images from your
              ever-growing collection.
              This is the first of a series of 4 articles in which we also look on how
              to keep our collection safe for the next 20, 50 or 100 years!

Pitfalls in Digital Imaging (May 07) - 0.6 MB
              We look at facts about JPEG, screen- and print resolution, resizing
              and others which even professionals often overlook.

Digital Macro (Sep 07) - 2 MB
              The biggest nuissance in macro-photography is the shallow
              depth-of-field - not anymore with digital!

Couting Photons (Nov 07) - 0.2 MB
              In this article we look at the digital imaging sensor -
              how does it compare to film in terms of resolution, dynamic range,
              noise and colour?
              What makes a SLR superior to a poit-and-shoot camera?

Choosing a Colour Space (May 08) - 1 MB
              Here we compare sRGB with Adobe RGB. Is a bigger colour space
              better than a smaller one? Not always...

Smart Objects (Aug 08) - 0.9 MB
              These come handy for multiple edits, and not just for resizing.
              A must if you are a Web designer!

All articles (currently a total of 107, Dec 08) are available on a CD
at a cost of NZ$45, including postage  -  Please contact me on

hans@digital-image.co.nz