Lenses: Don’t Collect the Whole Set


Wisdom comes from experience. Experience comes from bad decisions. Author unknown This article is written for those people who not too long ago walked into (or more likely logged onto) a camera store and purchased their first digital SLR and a lens or two. It was 12 years ago for me, but I still remember […]

Technical Discussions

How Autofocus (Often) Works


Clarke’s Law: Any sufficiently advanced technology is indistinguishable from magic. Arthur C. Clarke Clark’s Law: Any sufficiently advanced cluelessness is indistinguishable from malice. J. Porter Clark My Apologies Nothing in online forums demonstrates the two laws above better than discussions involving camera autofocus systems. Clarke’s law because very, very few people have the slightest grasp […]

Lenses and Optics

Everything but the Sharpness


About 614 times a day I take a phone call or answer an email that is essentially the same question: “How sharp is this lens?” It’s no different in online forums (ok, actually forums are a lot worse) where pages of arguments drone on comparing the results of this bench-test lab review, these MTF charts, […]


The II Conundrum


First, things first: this is simply an editorial. So there’s no worthwhile knowledge in this article, just my opinions. A few years ago, when a new version of anything came out, here was the Lensrentals drill: Buy the new version, anywhere at any price because we couldn’t possibly get enough. Everyone would want one. Sell […]

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