  In this paper, we investigate the optical behaviors of a quantum
Schwarzschild black hole with a spacetime solution including a parameter
$\lambda$ that encodes its discretization. Concretly, we derive the effective
potential of such solution. In particular, we study the circular orbits around
the quantum black hole. Indeed, we find that the effective potential is
characterized by a minimum and a maximum yielding a double photon spheres
denoted by $r_{p_1}, r_{p_2}$ respectively. Then, we analyse the double shadow
behaviors as a function of the parameter $\lambda$ where we show that it
controles the shadow circular size. An inspection of the Innermost Stable
Circular Orbits (ISCO) shows that the radius $r_{ISCO}$ increases as a function
of $\lambda$. Besides, we find that such radius is equal to $6M$ for an angular
momentum $L=2\sqrt{3}$ independently of $\lambda$. A numerical analysis shows
that the photon sphere of radius $r_{p_1}$ generates a shadow with a radius
larger than $r_{ISCO}$. Thus, a truncation of the effective potential is
imposed to exclude such behavior. Finally, the $\lambda$-effect is inspect on
the deflection angle of such a black hole showing that it increases when higher
values of the parameter $\lambda$ are considered. However, such an increase is
limited by an upper bound given by $\frac{6 M}{b}$.
