Re: [OM] Low light photography

[HI100]

Wayne.Harridge@xxxxxxxxxx writes:

<< 
 Can you explain something about the "LED limiter" >>

Wayne,
            The OM2/n limits long exposures so as not to waste battery life 
too much by feeding a small amount of light from an LED into the OTF 
photo-cell. This very low light level ensures that in total darkeness the 
shutter eventually closes after the low light is integrated. In the 2 the LED 
is on from near the begining of the exposure. In the 2n the LED only comes on 
after around 2 min and is brighter so giving a more controlled cut off time 
after 2 minutes. On the 2 this light is integrated along with light from the 
scene so at very low light levels (corresponding to minutes of exposure time) 
this causes an over erestimate of actual scene brightness and hence an under 
exposure.

Regards,
Tim Hughes
Hi100@xxxxxxx

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