Wall mounting Opemus 6

Steffen · 2008-07-03T07:15:10+00:00

Hallo je nach Abstand zwischen Grundbrett und Kopf ändert sich die Neigung der Negativ- und Objektivebene zur Grundbrettebene. Bei Änderung des Abbildungsma...

Steffen

Hello Depending on the distance between the base plate and the head, the angle between the negative and objective planes and the plane of the base plate changes. Having to realign the planes every time the magnification ratio is changed is tedious and time-consuming. A wall-mounted setup in which the lower and upper ends of the guide column are fixed solves the problem. My idea was to attach an original Opemus foot to the top of the guide column (with the thread facing upwards) and to fix both feet (top and bottom) to the wall using brackets. However, I need another foot for this, which FOTOIMPEX cannot supply to me individually. How else could the top end of the guide column be secured? Has anyone done this before? Many thanks and best regards Steffen

bernhardmangelsgmxde

< Depending on the distance between the base plate and the head, the angle between the negative and objective planes and the base plate changes. Having to realign the planes every time the magnification ratio is changed is tedious and time-consuming. > Have I understood the problem correctly: Your problem is that the guide column of your enlarger isn’t stable enough. (The rod isn’t fixed firmly enough.) As a result, depending on the setting, the head of the enlarger tilts forwards to a greater or lesser extent. Which is not what it’s supposed to do. I haven’t noticed this problem with the great-great-grandfather of the Opemus 6 (not even with a head significantly heavier than intended). But I’m rather rough and ready in that regard... perhaps I should check it out... Perhaps the problem can be solved simply by starting at the base and seeing if you can secure the part. (I don’t know how the base is attached to the base plate) so tighten a screw or something similar... Otherwise, two ‘feet’ are already overkill. Simply ‘rest’ the top and bottom bases on a metal bracket. Make some sort of fix, e.g. from (hard) wood, so the rod can’t move to the right or left. The top is more critical, but it should work too, because the guide column itself stabilises it from below... Have fun tinkering, in any case! Regards Bernhard

Claudius

> Depending on the distance between the base plate and the head, the angle of the negative > and objective planes relative to the base plate plane changes. That sounds rather odd and is definitely not normal with the Opemus 6. The negative and objective planes are (unless lens tilt is used) parallel to the base plate plane, and this is completely independent of the distance between the head and the base plate. To achieve anything else, the guide column would have to be severely bent. The forward tilt has nothing to do with this; it is precisely compensated for by the opposite tilt of the column guide in the head holder. So either your Opemus 6 is faulty, or there is some kind of misunderstanding that can hopefully be cleared up.