MDM Trouble Report for 2001 Feb 20 Telescope: 1.3m Observer(s): Lepine, Zurek (Columbia) Instrument: MkIII spectrograph Problem(s) Encountered: We observed what appears to be a chromatic aberration in the spectrograph configuration. We focussed the telescope using the method described in the manual. While our stars were well focussed in the 5000-7000A spectral range (and on the guider camera), spectra showed stars to be significantly out-of-focus in the 7000-8000A spectral range. ------------------------------ Submitted on 2001 Feb 21 [7:00:40]