90d too dark in HDR

[Jlames]

I’m really having issues with the 90d In-camera HDR. My subject is an interior room in afternoon light with large windows for natural light. Using a manual lens, I’m setting up for AV assuming if I set the ISO to 100 and the f-stop to 8, I’ll only need to be concerned with shutter speed. Using spot metering, I note that the dark is coming in at 0”8 and the bright is at 1/5, I’ve set up for both 3 and 5-shots at +-2ev and the resulting hdr image in both shots come out well-exposed for the highlights but too dark in the remaining areas. Am I doing something wrong or is the hdr function known for this?

Sent from my iPad

[jrhoffman75]

At a constant aperture halving or doubling is one f/stop. 4,8, 15, 30, 60 is 5 f/stops.

[Jlames]

OK and where do I get the other 2 stops?

[jrhoffman75]

Its +-, so +-2 is a 4 stop range.

And, there are going to be conditions where even +-3 isn’t enough.

[Jlames]

Ahh, I see. OK, let me go try this. Be right back and thanks so much for your patience and help.

[Jlames]

[Jlames]

So I guess this is one of those times where even six stops isn't enough so, if I understand this correctly, I'm outside of the cameras capabilities so I have to go to manual creation if I want to make an HDR shot look good; is that about it?

[kvbarkley]

Why not try "Auto" and let the camera pick the range?

[Jlames]

I'll try anything.

[Jlames]

Nope; that didn't work either.

[kvbarkley]

Have you tried "Backlight HDR mode"?