fresnel size for 5" monitor

[moi]

what is the best size and magnification for a 5" lcd monitor??

 

[mhelin]

Its focal length should match that of your projection lens closely (should have just a little longer FL).

 

[moi]

do you mean a 6" will be ok?

bye

 

[mhelin]

Which kind of projection lens you have?

 

[moi]

from a slide projector

 

[mhelin]

With focal length of ... ?

 

[moi]

i don't know for the moment
i'll get it next week

thanks