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We present final natural system optical (ugriBV) and near-infrared (YJH)photometry of 134 supernovae (SNe) with probable white dwarf progenitors thatwere observed in 2004-2009 as part of the first stage of the Carnegie SupernovaProject (CSP-I). The sample consists of 123 Type Ia SNe, 5 Type Iax SNe, 2super-Chandrasekhar SN candidates, 2 Type Ia SNe interacting with circumstellarmatter, and 2 SN 2006bt-like events. The redshifts of the objects range from z= 0.0037 to 0.0835; the median redshift is 0.0241. For 120 (90%) of these SNe,near-infrared photometry was obtained. Average optical extinction coefficientsand color terms are derived and demonstrated to be stable during the five CSP-Iobserving campaigns. Measurements of the CSP-I near-infrared bandpasses arealso described, and near-infrared color terms are estimated through syntheticphotometry of stellar atmosphere models. Optical and near-infrared magnitudesof local sequences of tertiary standard stars for each supernova are given, anda new calibration of Y-band magnitudes of the Persson et al. (1998) standardsin the CSP-I natural system is presented.

The Carnegie Supernova Project I: Third Photometry Data Release of Low-Redshift Type Ia Supernovae and Other White Dwarf Explosions