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Technical Discussions

Lens Repair Data 3.0

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What is this? It has become our practice to publish our lens repair data every 6 months. We started it at the request of some customers who felt the large number of lenses we deal with and the harsh conditions they are subjected to provided an opportunity to get some factual data about which lenses […]

Photographic Techniques

Introduction to IR Photography

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This article is a simple introduction to Infrared Photography. For those of you who find it interesting I’ve placed some links to more detailed and extensive sources at the end of this. What is Infrared Photography? First, lets more clearly define what we’re talking about. What we refer to as light is electromagnetic radiation with […]

Lenses and Optics

Optimus Prime

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Today’s topic is prime lenses, those lenses that (GASP!!!) don’t zoom! Wait, don’t leave. This is really worth your time. (OK, those of you who already shoot entirely or mostly with primes can leave, there’s probably not much for you here.) About 10 times a week, in discussing the best lens for the job with […]

Lenses and Optics

Teleconverters 101

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The problem, I think, is that it seems so simple. “If I add a 2x teleconverter I’ll get that closeup shot I want.” We all know what a teleconverter’s purpose is: it magnifies the image by a factor of 1.4x or 2×. A 300mm lens with a 1.4x converter becomes a 420mm lens. With a […]

Lenses and Optics

"This lens is soft" and other myths

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One of the most common examples of anti-logic we see at LensRentals is the statement The lens is soft/frontfocuses/backfocuses. Now don’t get me wrong, there are bad copies of lenses out there, as best we can tell ranging from 3% to 7% of lenses. And we know, despite our checkout procedures, that 1 of 400 […]

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