bubble level kit is perfect for ALL Meade tripods. The
built-in bubble level in the 883 tripod is useless and
the 884 does not come with a bubble level. This
bubble level kit consists of 1 circular (1 3/8")
bubble level and 2 straight (1 inch) bubble levels .
do I need the two straight bubble levels? ", you
may ask. The two straight
bubble levels help you to level the tripod faster and
more precisely. The proper way to level the tripod is
to adjust only two of the three legs. You level the
tripod front to back and level the tripod left to right.
One of the tripod leg does not need be be changed. The
two straight bubble level tells you which leg to adjust.
The little trick of using the two straight bubble level
is: the side the bubble stay is the side that should
be lowered. It is easier to shorten the leg than to
lengthen it because of the weight of the tripod. There
is little confusion on which leg to adjust, you adjust
the NORTH leg for front to back leveling, and adjust
either the East OR West leg for left and right leveling.
If your tripod is leveled front to back and left to
right, the circular bubble level would also be centered.
You may also use the two straight bubble level to level
the telescope fork arm in the Polar position, the telescope
optical tube assembly in the Alt/Az position.
your star alignment or GOTO is less then perfect, this
bubble level kit will give you a very portable tool
to improvement your alignment and GOTO accuracy.
of the round bubble levels:
0.1394 in./ft or 40 min./0.1"
of the buble level vial
0.1569 in./ft or 45 min./0.1"
is at least 1/64" observable movement of the bubble
in the round bubble level and the yellow vial bubble
level when I place a sheet of copier paper under one
edge and then remove the sheet of paper.