  We introduce a charge coupled device (CCD) camera based detection scheme in
dynamic light scattering that provides information on the single-scattered
auto-correlation function even for fairly turbid samples. It is based on the
single focused laser beam geometry combined with the selective cross
correlation analysis of the scattered light intensity. Using a CCD camera as a
multispeckle detector we show how spatial correlations in the intensity pattern
can be linked to single and multiple scattering processes. Multiple scattering
suppression is then achieved by an efficient cross correlation algorithm
working in real time with a temporal resolution down to 0.2 seconds. Our
approach allows access to the extensive range of systems that show low-order
scattering by selective detection of the singly scattered light. Model
experiments on slowly relaxing suspensions of titanium dioxide in glycerol were
carried out to establish the validity range of our approach. Successful
application of the method is demonstrated up to a scattering coefficient of
more than $\mu_s = 5$ cm$^{-1}$ for the sample size of L=1 cm.

Soft Condensed Matter