technical

How to Shoot Macro Photos with Regular Lenses and Extension Tubes

Macro photography works well with conventional lenses and inexpensive extension tubes. The combination achieves 0.3x to 0.5x magnification. Depth of field is much greater with these moderate magnifications than at the 1x magnification possible with macro lenses.

HSS Does Not Freeze Motion: Light is the Key, Not Shutter Speed

How do photographers freeze motion? With shutter speed, of course! This is something fundamental that everyone starting out in photography learns to do. If you’re shooting sports, for example, just crank the ISO up, set a high shutter speed, and expect a good frozen-in-time image. However, when using a flash, things are a little different. In fact, shutter speed is by far the worst way to freeze motion. Here’s why.

What is Hyperfocal Distance and How Do You Find It?

One of the more complex technical topics in photography is something called hyperfocal distance. At first glance, the basic definition of hyperfocal distance seems pretty straightforward: It’s the distance at which you focus your camera lens to get as much of your shot in focus as possible, from the foreground to the horizon.

Understanding Apple ProRAW

My name is Ben Sandofsky, and I'm the co-founder and developer of Lux Optics. We make Halide, the most popular RAW camera for iPhone, so when Apple revealed their new ProRAW image format, we were beyond excited.

Telephoto Reach With Various Digital Cameras

It's common for photo writers to state, "A 100mm lens on a Micro Four Thirds camera has the equivalent reach of 200mm on full frame". While the field of view is equivalent to 200mm FF, the reach is not necessarily equivalent.

The Problem with Using Large Format Lenses on a Digital Camera

Large format photography still enjoys the status of a noble branch in image-making. Legendary names like Planar, Dagor, Heliar, Symmar, and Angulon -- to mention just a few milestones in lens’ history -- bear an almost supernatural aura of excellence.

What Camera Sensor Size Equivalence is All About

Today we are taking a look at equivalency. Not equivalent exposure, equivalency. What the heck is that? Equivalency is a very, very complicated subject matter, but one people have been screaming about because of the last format comparison we did.

This Video Explains Exactly How Lens IS and IBIS Work in Modern Cameras

Most photographers know the basics of lens-based image stabilization (Lens IS) and in-body image stabilization (IBIS), but if you've ever wanted a technical deep-dive that explains exactly how these systems work to generate 4, 5, or even 7 stops of stabilization, this video from Imaging Resource is here to answer that call.

Why UV Filters are Basically Useless on Modern Cameras

We’re going to ask a controversial question: What do UV filters do, exactly? A UV blocking filter, (not to be confused with a UV Bandpass filter, which has the opposite function) is perhaps the most standard lens filter out there. It’s sold with every beginner lens filter kit along with polarizers and ND filters, and sometimes it’ll even ship with your camera.

Why Won’t the ’72dpi’ Myth Die?

When they were young, my children used to get very excited about Santa Claus and the Easter Bunny. But they saw through those by the time they were six. So why has the myth of saving JPEG files at 72dpi lasted far more than six years?

What’s Your Rangefinder’s Effective Base Length?

Looking to buy your first rangefinder? Here’s a tip: start with the lenses! Effective Base Length, or EBL, is often left with little or no consideration by SLR shooters looking for their first interchangeable lens rangefinder.

What Does an Unprocessed RAW File Look Like?

What does it mean to look at a "straight from camera" RAW photo file? How do RAW processors like Lightroom change the files after they're loaded, and are RAW files actually images? Those are some questions we'll be exploring in this article.

Basics of the Histogram: From Foe to Friend

A long, long time ago, that is, in days of film photography, it was a rather difficult task to learn how to produce properly exposed pictures. There was no instant feedback and the only way to see how good of a job you did exposing the scene was to wait until the picture was developed.

8, 12, 14 vs 16-Bit Depth: What Do You Really Need?!

“Bit depth” is one of those terms we’ve all run into, but very few photographers truly understand. Photoshop offers 8, 16, and 32-bit file formats. Sometimes we see files referred to as being 24 of 48-bit. And our cameras often offer 12 vs 14-bit files (though you might get 16-bit with a medium format camera). What does it all mean, and what really matters?

Histogram or Artistic Expression: What Matters Most?

How literally should you interpret a histogram? Where do the lines intersect between artistic expression and photographic technicalities? It’s important to first recognize that a histogram is nothing more than a mathematical representation.