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We present additional evidence that dust is really forming along the redgiant branch (RGB) of 47 Tuc at luminosities ranging from above the horizontalbranch to the RGB-tip (Origlia et al. 2007). The presence of dust had beeninferred from an infrared excess in the (K-8) color, with K measured from highspatial resolution ground based near-IR photometry and "8" referring toSpitzer-IRAC 8 micron photometry. We show how (K-8) is a far more sensitivediagnostic for detecting tiny circumstellar envelopes around warm giants thancolors using only the Spitzer-IRAC bands, for example the (3.6-8) color used byBoyer et al. (2010). In addition, we also show high resolution HST-ACS I bandimages of the giant stars which have (K-8) color excess. These images clearlydemonstrate that Boyer et al (2010) statement that our detections of colorexcess associated with stars below the RGB-tip arise from blends and artefactsis simply not valid.

Dust is forming along the red giant branch of 47 TUC