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Leica MTF For Leica 35/1.4 Summilux-M ASPH

The announcement of the 2010 Leica 35mm f/1.4 Summilux-M ASPH provided a rare opportunity to compare equivalent MTF charts of an older legend to an improved design. The focal length is identical, the measurements follow the same protocol, so it’s the perfect comparison.

The MTF charts below have been scaled and aligned to match as closely as possible (the original charts varied slightly in layout):

Aperture f/1.4

Red lines are the new and improved 2010 lens.

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  • 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.

f/1.4 for older (green) and 2010 35/1.4 (red)

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