I would like to see what it's like to focus my Toyo 45 field (an A I think) without the fresnel. The gg and the fresnel are held together with clips, and this assembly is then screwed into the back with another set of clips. Will I affect the accuracy of focusing if I remove the fresnel and install the gg without it? I'm afraid I forgot the order they were assembled in (ie gg in front of fresnel or the other way around. I think it's fresnel then gg.