Measurement of B-->K{*}(892)gamma branching fractions and CP and Isospin asymmetries.

We present an analysis of the decays B^0→K^(*0)(892)γ and B^+→K^(*+)(892)γ using a sample of about 383×10^6 BB events collected with the BABAR detector at the PEP-II asymmetric energy B factory. We measure the branching fractions B(B^0→K^(*0)γ)=(4.47±0.10±0.16)×10^(-5) and B(B^+→K^(*+)γ)=(4.22±0.14±0.16)×10^(-5). We constrain the direct CP asymmetry to be -0.033isospin asymmetry to be 0.017<Δ_(0-)<0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.