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Leica MTF Analysis / Summilux, Elmarit, Elmar 24mm
Examples on this page are with the three Leica 24mm lenses.
Measurement distance is infinity for Leica MTF charts (unless otherwise noted). Leica MTF charts are for 5/10/20/40 line pairs per millimeter, yielding a very useful overall signature . They can be compared with Zeiss charts using the 10/20/40 lines.
Leica 24mm f/1.4 Summilux-M ASPH
The 24/1.4 is a very modern design, but like all 24mm lenses, it has to make some serious design tradeoffs. Both field curvature and distortion had to “give” (per Leica priorities), and a strong wave-type field curvature is present (see f/2.8), which means it won’t deliver crisp images on planar subjects, even at f/5.6.
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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.
Mouse over to see f/5.6