When it comes to hardware, especially lenses, you can use anything. Someone above said "most modern lenses are too slow." Not true. I've used Velostigmats, Protars, Dagors, Tessars, as well as the older Petzvals and Rapid Rectilinears that were used from the 1860 until 1900. A typical RR is F8, and many magic lantern petzvals are around F9. They work fine. Why would an F4.5 Tessar not work? It does.