Apparently my neck wasn't the only thing I broke in my latest trip. When my wife pulled my Toyo 810M from its case, the ground glass was broken. Looking at the back, it appears that there are two different planes onto which a ground glass can be mounted. One is seated deeper than the other, and has slightly smaller dimensions. Obviously the plane of focus will only fall on one or the other. When I order my new glass, do I ask for one sized for the smaller and more deep seated plane or one for the outer plane, which is farther away from where the film holder will sit? Apparently the original configuration included a fresnel. I just want a good ground glass.
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