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Peter,

> Some people use a small light
> mounted on a strap that fits onto the
> forehead.

It is hard for most models
to direct any such light to the
place on the scale where you read.

> they tend to be too bright,

There are some where brightness can be adjusted.
I use an LED light from Celestaire. It has a clip,
which can be attached either to the sextant frame
or to your hat.
The light direction can be adjusted with respect
to the clip. Costs $15 to $20 and
comes in
variety of light colors (I use red).

Still is it not as convenient as a built-in sextant
light.

But I agree that for practical boat navigation
the light is not necessary. You usually take altitudes
during the day or twilight when the scale is usually
readable with natural light.

I do a lot of lunars when it is completely dark,
that's why I need a light.

(SNO has illumination by luminiscent paint, but it does
not work well enough because the sextant is 17 years old and
the paint almost lost its properties).

Alex.


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