noun
resolving power; resolution
Technical term used in optics and imaging to describe the ability of a lens or optical system to distinguish fine details.
このレンズは解像力が高いので、細かい部分まではっきり写ります。
This lens has high resolving power, so it captures fine details clearly.
解像度 refers to resolution as a measurable quantity (e.g., pixel count), while 解像力 emphasizes the inherent ability to resolve detail.
Compound of 解像 (image resolution) and 力 (power, ability). The exact historical derivation is uncertain, but the term is a modern technical coinage.