Originally Posted by jnanian
Your question is an interesting one, and maybe any optics pundits around can answer it ?
As the Tessar is not a symmetrical design, should it be reversed if the lens is used as a projection lens ? Logicaly I would think the answer is yes, but is this sure ?
@Whiteymorange, thanks for your reply.
I discovered recently the antiquecamera.net website, it's a goldmine !
The design of my lens looks like a little the Dallmeyer portrait lens, as described on the petzvallens page. However i am inclining too for a mistakenly remounted Petzval. The fact that this lens was very clean for its age when I found it is aiming me this way.
A check procedure will be to mount it on a camera and see what I get on the groundglass, but I haven't the appropriate lens board for now.