Diffraction-limited system, an Uncommon card

The card carries these facts from its Wikipedia article.

• An optical instrument is said to be diffraction-limited if it has reached this limit of resolution performance.
• Other factors may affect an optical system's performance, such as lens imperfections or aberrations, but these are caused by errors in the manufacture or calculation of a lens, whereas the diffraction limit is the maximum resolution possible for a theoretically perfect, or ideal, optical system.
• The diffraction-limited angular resolution, in radians, of an instrument is proportional to the wavelength of the light being observed, and inversely proportional to the diameter of its objective's entrance aperture.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Diffraction-limited system article was read about 49,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 65 and blocks with 42: each hit it takes is cut by 17 %.

Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.

The cards just above and just below Diffraction-limited system in the power ranking, all domains together.