ɐ stˌɛɹɪoʊskˈɑːpɪk spˈɛktɹəɡɹˌæf ɪz sˈɪmɪlɚ tʊ ɐ nˈoːɹməl spˈɛktɹəɡɹˌæf ɛksˈɛpt ðæt ɐ ɪt hɐz nˈoʊ slˈɪt, ænd bˈiː mˌʌltɪpəl spˈɛktɹəl ˈɔːɹdɚz ˈɔfən ɪŋklˈuːdɪŋ ðə nˈɑːndɪspˈɜːst zˈiəɹoʊ ˈɔːɹdɚ ɑːɹ kəlˈɛktᵻd sˌaɪməltˈeɪniəsli.
A stereoscopic spectrograph is similar to a normal spectrograph except that (A) it has no slit, and (B) multiple spectral orders (often including the non-dispersed zero order) are collected simultaneously.