At 02:36 2/12/01, Wayne Harridge wrote:
I have one of those levels that slips into the accessory shoe, and I know
that it is not accurate on my OM-1 & OM-10, and I haven't tried it on any
other bodies. My advice would be to try one of these levels and see if it
works for you (e.g. take a few test shots of tall rectangular buildings
with a wide angle lens after levelling the camera).
Somehow I'm not that surprised about the OM-1, nor would I be with the
OM-2[n] since they have the screw-on hot shoe. Slight variation in the
shoe, it's condition and the condition of the prism housing could easily
throw it off a little. I was thinking more along the lines of the OM-2S
and upward with the fixed shoes. Even so, you are right that it may not be
perfectly level. In my experience, unless there are strong lines very
close to frame edges, a very slight amount of error won't be
detectable. The closer to the edges, the more detectable it becomes. I
have done a couple with the 35/2.8 Shift hand held that did have lines at
the edges and was glad I took several shots at it (while wishing I'd had
the tripod with me). I've also been known to correct for very minor error
when mounting the print in a matted frame . . . but that can only fix
"roll" left or right, not "pitch" up or down.
Some technical cameras have these things built into them. Alas, it's yet
another feature to be wished for in the mythical OM-5/6, along with a line
on the top body cap showing film plane location.
-- John
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