iso 200?

[back alley]

does anyone know why the rd1 does not have an iso setting of 100 or 50, for that matter?

was there a reason cited when the camera was first introduced?

 

[astroman]

My old Nikon d70 didnt have anything below 200??

 

[back alley]

so, it's a sensor thing?

 

[dazedgonebye]

so, it's a sensor thing?

Yep.

200 was the native iso of that sensor.
They amp it up for higher ISOs...I never understood why they couldn't attenuate it for lower. Must not be as easy as it sounds.

 

[squirrel$$$bandit]

Perhaps the release of the RD1x will precipitate a retroactive firmware update...that's been my fantasy for some time.

 

[axiom]

afaik
that's a CCD nature
you get the extra sensitivity for free
so if it were a CMOS sensor, the iso range would have been 100-800