On 14 Dec 2001 10:57:13 -0800, Matt Marin wrote:

>Does anyone know whether there's an undocumented way to turn off autogain on
>this model without having to go full manual exposure?

Not that I know of - though there is the subtle "-3db"
selection available on the TRV900, which shifts the gain
by 3db relative to the shutter-aperture combinations...
Locking in a wide stop (AE-A) or 1/60th shutter speed
or lower (AE-S) may help in some lighting conditions to
force the gain lower...