Your lens design becomes mostly diffraction-limited no matter how large you make the aperture, or how well you correct the ray-traced design of the lens.    From Wordnik.com.  [doggdot.us] Reference

Why, yes, says Wang-how about optically diffraction-limited images?.    From Wordnik.com.  [Ars Technica] Reference

In fact, if it's a poor lens, it may never achieve diffraction-limited performance.    From Wordnik.com.  [The Online Photographer] Reference

A versatile source, it provides diffraction-limited operation over a range of user-adjustable settings.    From Wordnik.com.  [BioSpace.com Featured News and Stories] Reference

Arrows point to examples of diffraction-limited AP-2 spots appearing and disappearing within the time-series.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

We also talk about a lens exhibiting "diffraction-limited performance" when its resolution is near the diffraction limit.    From Wordnik.com.  [The Online Photographer] Reference

If a 100x objective is employed, the projected size of a diffraction-limited spot on the face of the CCD would be 21 microns.    From Wordnik.com. Reference

I've received a lot of emails (and several from members in this forum) which have debated the diffraction-limited aperture for the 7D, 5D, etc.    From Wordnik.com.  [News: Digital Photography Review (dpreview.com)] Reference

Plasmonic devices are capable of efficiently confining and enhancing optical fields, serving as a bridge between the realm of diffraction-limited optics and the nanoscale.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

The approach is based on adaptive optics, a technique that has been long used in astronomy to obtain diffraction-limited resolution images of stars through the turbulent atmosphere.    From Wordnik.com.  [Medlogs - Recent stories] Reference

With its diffraction-limited, high-resolution imaging optic working at the lithographic relevant 193nm wavelength the new PROVE 'system opens up entirely new perspectives in registration metrology.    From Wordnik.com.  [IBN - IT Business Net-news] Reference

In any optical system, distortions to a propagating wavefront reduce the spatial coherence of a light field, making it increasingly difficult to obtain the theoretical diffraction-limited spot size.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

With its diffraction-limited, high-resolution imaging optic working at the lithographic relevant 193nm wavelength the new PROVE ™ system opens up entirely new perspectives in registration metrology.    From Wordnik.com.  [Business Wire Travel News] Reference

In addition, introduction of the roof element degrades diffraction-limited resolution by almost a factor of two in the direction perpendicular to the roof edge, regardless of the accuracy of construction.    From Wordnik.com. Reference

Excitation Photobleaching Patterns - Multiphoton fluorescence microscopy utilizes diffraction-limited focusing by a high numerical aperture objective to localize the spatial concentration of excitation light to narrow region near the focal point.    From Wordnik.com. Reference

Periodic Diffraction Images - When a microscope objective forms a diffraction-limited image of an object, it produces a three-dimensional diffraction pattern that is periodic both along the optical axis and laterally within the intermediate image plane.    From Wordnik.com. Reference

The first pulse is a diffraction-limited spot that is tuned to the absorption wavelength, so excites any fluorophores in that region; an immediate second pulse is red-shifted to the emission wavelength and stimulates emission back to the ground state before, thus depeting the excited state of any fluorophores in this depletion pulse.    From Wordnik.com.  [Everyday Scientist] Reference

"The aperture at which a lens becomes diffraction-limited is proportional to the format size: 22 mm diagonal sensors become diffraction-limited at f/8 and 11 mm diagonal sensors become diffraction-limited at f/4 -- the same aperture where it becomes aberration-limited.    From Wordnik.com.  [News: Digital Photography Review (dpreview.com)] Reference

On the other hand, really, really good 35mm-format lenses may become diffraction limited at apertures as large as ƒ / 4-ƒ / 4.7 and exhibit diffraction-limited performance at ƒ / 4. 7-ƒ / 7.    From Wordnik.com.  [The Online Photographer] Reference