ND filter on the GRDs

[Mitch Alland]

I wonder why the ND filters on the GRD and GRD2 are only deployed in the AUTO mode? It would seem that, to limit diffraction, it would be good to be able to deploy them after f/7.1 in A, P and M modes as well.

Fröhliche Weihnachten
God Jul
Merry Christmas
Feliz Navidad
Feliz Natal
Szczęśliwe Boże Narodzenie
Joyeux Noël

—Mitch/Bangkok
http://www.flickr.com/photos/10268776@N00/

 

[clay stewart]

Merry Xmas Mitch. I can't seem to find that in the book or the menu. Are you talking about "P" or the "Green" when you say auto mode, and what page of the manual is this found?
Thanks Clay

 

[Mitch Alland]

Clay:

On page 188 of the GRD manual:

Aperture F-value: F2.4, F3.5, F7.1, F10, F11 (F7.1 to F11 with ND filter)
P, A, M : F2.4, F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0, F9.0

And of page 220 of GRD2 manual:

F-aperture: F2.4 to F11 (Auto shooting mode Use with ND filter when F7.1 or higher)

—Mitch/Huahin
http://www.flickr.com/photos/10268776@N00/

 

[Robert Campbell]

Where exactly is this ND filter? In front of the sensor? Is it a 'virtual' ND sensor, perhaps reducing ISO?

Bertie