This may sound stupid but I need some clarification.
From what i think I have understood by reading the various posts on choosing binoculars, porro prisms are brighter than roof prisms and 42mm objectives would be brighter than 32mm objectives. Also high quality binoculars would be brighter and sharper than low quality binoculars.
Putting all this together would it right to say that for reputed brands of binoculars a mid priced 42mm roof prism would compare favourably with a high end 32mm roof where resolution & brightness is concerned? Or a mid priced 42mm porro would be equivalent to a high end 32mm roof in a similar situation?
One difference often is waterproofing, nitrogen fill etc.
[QUOTE=Tero]One difference often is waterproofing, nitrogen fill etc.[/QUOTE]
also the build quality on high end binos is often superior, so they will perform at a higher standard for years! another thing i noticed with my leicas- i dont suffer from 'eye strain', a common problem with my old cheapo binos!