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Edward Hertz has made enduring contributions to astronomical instrumentation, most notably through his central role in designing, constructing, and commissioning the Hectospec — a pioneering 300 optical fiber-fed spectrograph deployed at the MMT Observatory in Arizona. His work on this instrument spans over a decade, from early design concepts published in 1994 through construction updates in 1998 to the landmark 2005 commissioning paper that has since accumulated 382 citations, cementing Hectospec's place as one of the most impactful multi-object spectrographs in modern observational astronomy. The instrument's innovative dual-robot fiber positioning system, capable of repositioning 300 fibers to 25-micron accuracy in roughly five minutes, represented a significant technical achievement that dramatically accelerated large-scale spectroscopic surveys. Hertz also contributed to the broader optical development of the converted MMT, helping bring its wide-field f/5 focus to fruition with a one-degree field of view and sub-arcsecond imaging quality. His body of work has provided the astronomical community with powerful tools for galaxy redshift surveys, stellar studies, and cosmological research, leaving a lasting technological legacy at one of the world's premier observatories.