Mastering Aperture, Shutter Speed, ISO and Exposure: How They Interact and Affect Each Other

Amazon Best Seller!

Second Edition Updated for 2026.

Stop Guessing. Start Creating.

Are you tired of relying on your camera’s "Auto" mode, only to be disappointed by the results? Do you have an expensive DSLR or mirrorless camera that feels more like a source of frustration than a tool for creativity?

Mastering Aperture, Shutter Speed, ISO and Exposure: A Practical Guide to Perfect Exposure for DSLR and Mirrorless Cameras has helped countless photographers take control of their gear and transform their images. Now fully updated for the mirrorless era, this Second Edition strips away the intimidating jargon and explains the core principles of photography in plain, easy-to-understand English.

Written by best-selling author Al Judge , this guide approaches photography from the highly logical perspective of a former mechanical engineer. By breaking down the physical mechanics of the camera, Al demystifies the "Exposure Triangle" so you can visualize exactly how light works—making the concepts finally click into place.

Inside, you will discover how to:

• Take Complete Control: Master the Exposure Triangle—Aperture, Shutter Speed, and ISO—to perfectly capture any scene.
• Manipulate Depth of Field: Create stunning portraits with beautifully blurred backgrounds (bokeh) and tack-sharp landscape images.
• Capture Time: Use Shutter Speed to freeze fast-moving action or create silky, flowing waterfalls and night-time light trails.
• Read the Data: Understand your camera's Histogram to guarantee perfect exposure every time and completely eliminate "highlight clipping".
• Embrace the Mirrorless Revolution: Learn how Electronic Viewfinders (EVFs), live histograms, and electronic shutters give you a real-time advantage over traditional DSLRs.

Whether you are shooting on a cutting-edge mirrorless system or a classic DSLR, the physics of light remain exactly the same. Stop settling for "good enough" snapshots and the "spray & pray" approach of hoping one image turns out right.

Take your camera off "Auto," unlock its true potential, and start creating images that capture exactly what you saw and felt. Grab your copy today!