Does anyone know which canons stipulate which events in Our Lord's life may be depicted, and in particular if there are any canonical icons of Him carrying the Cross?
If it actually happened, I would find it weird a canon forbids its depection.
There has been a lot of arguing on this site over whether St. Joseph the Betrothed can be shown holding the infant Christ, even though he almost certainly did at some point.
Probably you don't see icons of Christ carrying His cross because the icons you see, for the most part, are the fraction that have been made into prints and mounted. Chances are, you don't live close to ancient frescoed monasteries with scenes depicted on the walls. There's far more out there in the real world than is available on the Interne--either for sale or display.
Would you happen to know if the painting Christ Bearing the Cross
by Nicolaos Tzafouris is an icon, and how I can prove it? (I'm writing an essay about art and part of my point relates to Byzantine iconography. Trouble is, it looks like an icon, and it would really help my point if it were an icon, but I've never seen any other icon of that event and I don't know how to find out if it's a legit icon.)