  We discuss prospects for detecting a spectral break in gamma-ray spectra of
blazars due to the extragalactic background light (EBL) density falling off
between the near and mid-IR. A measurable spectral change in the TeV spectra at
1 TeV could arise from a rapid or slow drop in the EBL density above ~1 micron.
This effect is mediated by the ratio of the near to mid-IR density of EBL. A
detection of such a spectral feature could become a clear signature of EBL
absorption. A non-detection would give a strong observational constraint to the
shape of the EBL spectrum. We present calculations estimating the sensitivity
of TeV telescopes for detecting such a break for blazar observations at
different redshifts.
