Let $Y_1$ and $Y_1'$ be index two degree one Fano threefolds. Suppose we have a Fourier-Mukai equivalence $\Phi_P : \mathrm{D}^b(Y_1) \to \mathrm{D}^b(Y_1')$. Can anything be said about the kernel $P$, i.e. is there some kind of a classification in this Fano case? Can we for example use Bondal-Orlov's theorem on the autoequivalences of $\mathrm{D}^b(Y_1)$, i.e. that $\mathrm{Aut}(\mathrm{D}^b(Y_1)) = \mathrm{Aut}(X) \ltimes (\mathrm{Pic}(X) \oplus \mathbb{Z})$, to say anything?
Thank you.