Narrowband mid-infrared images and models of the HII complex G34.3+0.2

We present mid-infrared images of the ultracompact H II region complex G34. 3+0.2 taken on the IRTF through a 1.8% circular variable filter wheel at 8. 0, 9.7, 11.2, 12.8, and 13.2 mu m and through a 6.8% filter at 20.6 mu m. I nfrared emission was detected at the radio components A, C (the "cometary" component), and D. In addition, two new sources of emission were found sout h of C at 20.6 pm; we assign them names of E and F. Infrared emission was n ot detected at B, and C does not have the famous cometary shape that is obs erved in radio continuum emission. Photometric flux densities and source si zes are determined for A, C, and E. Radiative transfer models are then pres ented to match the observed dust emission for these sources. Based on the o bservations and models, an overview of the complex is suggested in which C is an approximately spherical centrally heated source that was not formed f rom material in the adjacent ultracompact molecular core. C is not a bliste r source, and it is not colliding with the molecular core.