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Rangefinder Focusing Aids
Without accurate focus, no camera or lens is sharp. A very small focus error means blur on a high-resolution digital camera, cutting resolution in half, or more.
Your best focusing aid is a Live View feature. But no rangefinders offer that feature as of mid 2001. See also Viewing the LCD on the previous page.
See also the 65 page User's Guide and Review of the Leica M9 in DAP.
1. Magnifying eyepiece
Leica offers a 1.25X and 1.4X viewfinder magnifier for the Leica M8/M9. These are very helpful, especially in dim light.
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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.
- Eases into photographic challenges with an introductory section.
- Covers aspects of digital sensor technology that relate to getting the best image quality.
- Technique section discusses every aspect of making a sharp image handheld or on a tripod.
- Depth of field and how to bypass depth of field limitations via focus stacking.
- Optical aberrations: what they are, what they look like, and what to do about them.
- MTF, field curvature, focus shift: insight into the limitations of lab tests and why imaging performance is far more complex than it appears.
- Optical aberrations: what they are, what they look like, and what to do about them.
- How to test a lens for a “bad sample”.
Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.