My Ebony 23S, purchased new last summer, is exhibiting some lack of rigidity in the standards. With the camera set up the standards will rock front to back a bit. The standard assembly, including the geared rails, seem to be rigid and rock in unison. I have been told that this is normal with an Ebony due to wood shrinkage resulting from low humidity. But I thought one of the reasons for the choice of ebony wood is its dimensional stability and resistance to moisture absorption. The actual amount of movement is not large but it is more than enough to impact focus at ƒ5.6 with a 135 Sironar S.
If I have it adjusted to be rigid now (in the winter) will I have problems with the rails sticking when I try to focus in the summer when the humidity is much higher here in the US mid-Atlantic region? If so, perhaps it was a mistake to not buy a metal camera. Or am I expecting too much? Comments/ suggestions?
Thanks in advance.
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