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Diglloyd Making Sharp Images articulates years of best practices and how-to, painstakingly learned over a decade of camera and lens evaluation.
Save yourself those years of trial and error by jump-starting your photographic technical execution when making the image. The best lens or camera is handicapped if the photographer fails to master perfect shot discipline. High-resolution digital cameras are unforgiving of errors, at least if one wants the best possible results.
Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.
Introduction and overview of making sharp images.
How a lens blurs when out of focus is a Big Deal.
Blur from optical behavior or subject-related issue.
Sharpness loss by focusing or zone of sharp focus.
Sharpness loss by camera or support or technique.
Digital capture technology is discrete, and not the same as film.
Evenness of illumination, color shading, digital sensor effects, ray angle.
Making image captures look sharp.
How to choose a camera, lenses, and the other stuff that’s worthwhile.
Focusing is more complicated than it first appears.
Focusing accuracy and errors.
Using your camera’s mirror lockup, self timer, and Live View features.
Controlling the zone of sharp detail.
Increasing Depth of Field by means other than stopping down.
Bypass the limits on depth of field and diffraction.
Getting peak performance from your lens
Zone of focus, not plane of focus
Actual example of field curvature.
Elusive sharpness, depending on aperture
Focus shift with a variety of lenses.
Understanding resolution and contrast graphs.
Understanding the various optical aberrations and behaviors.
Evenness of illumination across the frame and related effects.
Diffuse haze at wide apertures.
Understanding lateral chromatic aberration (color fringing).
Understanding Longitudinal (Axial) chromatic aberration (LOCA).
Secondary Longitudinal Chromatic Aberration (SLOCA).
Sharpness issues related to camera and lens tolerances and build quality.
How to verify a good sample and assess all aspects of lens performance.
Illuminating examples of lens behavior.
Pros and cons of using a polarizer.
Research into sharpness of handheld images with and without image stabilization
Stability of tripods and ballheads, controlling camera vibration, selecting equipment.