Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.

English German French

Sign up Login
Home Forums Articles Galleries Recent Photos Contest Help Search News Workshops Shop Upgrade Membership Recommended
members
All members Wiki Contests Vouchers Apps Newsletter THE NIKONIAN™ Magazines Podcasts Fundraising

D800E Center-Weighted Metering in DX Format

BillS2

Germantown, TN, US
5 posts

Click to send email to this author Click to send private message to this author
BillS2 Silver Member Nikonian since 05th Jan 2013
Tue 22-Jan-13 02:57 PM

Suppose I have my D800E set to center-weighted metering and the center metering circle set to 20mm. If I mount a DX format lens and the camera automatically switches to DX format, does the center metering circle remain at 20mm, or does it shrink to a size appropriate to the DX format?

I could not find anything on this in the owners manual.

Thanks,
Bill

ericbowles

Atlanta, US
10524 posts

Click to send email to this author Click to send private message to this author

#1. "RE: D800E Center-Weighted Metering in DX Format" | In response to Reply # 0

ericbowles Moderator Awarded for his in-depth knowledge and high level skills in various areas, especially Landscape and Wildlife Photoghraphy Writer Ribbon awarded for for his article contributions to the community Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 Nikonian since 25th Nov 2005
Tue 22-Jan-13 05:42 PM

The camera will remain at whatever metering circle size you designate regardless of mode. That does represent a larger portion of the image in DX mode than FX mode. The menu - and the camera - do not differentiate based on lens choice or lens mode.

Your question got me thinking about matrix metering. I have not seen anything definitive, but I expect that Matrix metering also does not change - even if part of the image is outside of the DX boundaries.


Eric Bowles
Nikonians Team
My Gallery
Workshops

Nikonians membership — my most important photographic investment, after the camera

BillS2

Germantown, TN, US
5 posts

Click to send email to this author Click to send private message to this author

#2. "RE: D800E Center-Weighted Metering in DX Format" | In response to Reply # 1

BillS2 Silver Member Nikonian since 05th Jan 2013
Tue 22-Jan-13 10:12 PM

Light falloff around the edge of the FX frame can be observed with some DX lenses. If brightness levels over the entire FX frame are used in the exposure calculation (in either matrix or center-weighted), then it seems that the light falloff would be a source of metering inaccuracy with DX lenses on an FX camera.

I have not thought about this question before and have not used a DX lens on my D800E. It may be that the effect on the overall exposure is not enough to matter.

Bill

G