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What Is Lens Speed?

Lens speed is basically the maximum amount of light that a specific lens can transmit in a specific length of time.  Essentially, a lens that transmits a lot of light is called a “fast” lens, and a lens that transmits less light when fully open is called a “slow” lens. However, the terms “fast” and […]

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Photomatix Essentials (Formerly Photomatix Light) – Tutorial And Review

You will get an instant 15% discount on your purchase of Photomatix Light, or any other Photomatix product, by entering the following coupon code into the order form: photoluminary Welcome to my Photomatix Esentials (Light) tutorial and review. While I would always first recommend Photomatix Pro to any photographer that is serious about professional HDR […]

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Digital Zoom Vs Optical Zoom

A zoom lens allows you to vary lens focal length, and therefore make the subject larger or smaller in the image. Digital zoom is not “true” zoom, as all it really does is digitally enlarge part of the image, which simulates “true” zoom.  Typically, there is a noticeable loss in image quality when digital zoom […]

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What Is A Good Photograph?

My first instinctual answer to this question is that what constitutes a good photograph is going to be highly subjective.  If I look at a photograph and say “that is a good photograph”, does that mean that it is so?  Ultimately, I do believe that there is no one set of criteria that can render […]

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Topaz Labs Coupon Code

I have been granted a Topaz Labs Coupon Code to offer to the readers of photoluminary.com.  You will get an instant 10% discount on any TopazLabs product by entering the coupon code photoluminary, during your order. If you haven’t tried any of the TopazLabs Photoshop Plug-Ins, they can all be downloaded in fully functional and […]

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HDR Histogram – Photomatix

For an automatic 15% discount on any Photomatix product, enter the coupon code photoluminary during your order. The HDR histogram in Photomatix functions in the same way that a normal histogram does.  A histogram is simply a graph which shows the brightness levels of a scene.  The left side of the graph shows the darkest […]

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Gimp HDR Tutorial

While Photomatix Pro is considered the ideal software for creating HDR images, this tutorial list will focus on using the GIMP.  GIMP is a free image editing program used by many people who either can’t afford or choose not to purchase Photoshop for photo manipulation. If you haven’t yet, you can download the GIMP here: […]

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Define Camera ISO – Photography Tutorial

I’m sorry to my handful of regular readers for not posting in the last few days.  The power was out at our home  for nearly three days due to heavy storms, and I had to drive thirty minutes away to plug in my laptop, which seems to have less than three hours of battery life.  […]

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Topaz Adjust Tutorials

If you decide to purchase a license for Topaz Adjust, or for any of the Topaz Labs products, you will get an instant 10% discount if you enter the following coupon code during your purchase: photoluminary Edit: Since my initial writing of this post, I have learned quite a lot about Topaz Adjust and have […]

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Napa Valley Photos – Free High Resolution Downloads

Since I live in the Napa Valley, I often take photos of vineyards and other scenery from the area.  Most of these are actually for sale at premium stock sites such as iStockphoto and Shutterstock, which are the only places that I offer the high resolution versions.  I also don’t permit the smaller free versions […]

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