Category » Roger’s Ramblings

Testing UV Filter Quality

Equipment

My Not Quite Complete Protective Filter Article

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Well, I’ve written (with some misgivings because it has a tendency to create rioting in the streets) several articles about protective filters. Articles that say sometimes you shouldn’t use protective filters, and others that say sometimes you do need to use protective filters, and most recently, one showing how cheap filters can ruin your images. Because […]

Humor and sarcasm

Roger’s Random Photography Marketing Generator

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Somedays I get bored with testing. Somedays I have to read new product release blurbs and get nauseous. And somedays I find something funny on the internet. All three of these happened the other day, which led to me randomly corresponding with Seb Pearce about my thoughts that today’s photography marketing blurbs were so boring they […]

Humor and sarcasm

Introducing the Lensrentals Numerical Analysis

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It’s been obvious for a long time that people don’t want to read long drawn out blog posts about lenses. They want a numerical score so that they can make quick comparisons. We have pounded the drum for a long time that things like validity, relevance, transparency and scientific methodology are of critical importance. But The […]

Geek Articles

Is Your Camera Really The Best Optical Test?

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“But you must not eat from the tree of the knowledge of good and evil, for when you eat from it you will certainly die.” Genesis 2:17. I have enjoyed, for some years now, the process of learning about lenses and optics. This blog shares a lot of what I’m in the process of learning. A lot […]

Lenses and Optics

The (sort of) Great 400mm Lens Shootout!

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I get asked a lot about different telephoto lenses. Is the 400 DO II better than the 400 DO? Which is better, the Tamron 150-600mm or the Sigma 150-600mm? You’ve probably noticed that I don’t answer those questions. The reason is simple. Our optical bench is designed to test lenses up to 2.5kg weight and […]

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