Auto HG too bright in urban setting - how to adjust?

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scotchtape
Posts: 1
Joined: 20 Apr 2016, 04:15

Auto HG too bright in urban setting - how to adjust?

Post by scotchtape »

Came back to this after a year, bought and paid for app.
Still having this issue :(

(I was also the one who suggested having a highlight/shadow limit option like last year)

My issue is that when using auto holy grail in the city, my end exposures always end up too bright.
Highlights always get blown way out! Last night I made an example of this shooting out of a window.

LRT preview: you can see the exposure is going up.
Image

Last frame of sequence JPG
Image

Video: skip to last 5 seconds

Sequence JPG no adjustments
[youtube]https://youtu.be/URv29Hc7LZQ[/youtube]

Sequence processed
[youtube]https://youtu.be/s314iwpqMx4[/youtube]

Is there a way to adjust the algorithm for DD? Even in the app, I can see at the end the brightness is higher than the reference value!
I just used default settings with Auto HG, Sunset, auto direction. Didn't make screenshot on android sorry.

I would love to be able to leave the app unattended. I know the "simple" solution would be to set the end exposure - but the problem is usually you don't know what the end exposure should be ahead of time! If I have to baby-sit DD, it kind of defeats the point of autoHG!

Thanks! Please help! :)
hubaiz
Site Admin
Posts: 2006
Joined: 27 Jan 2015, 18:58

Re: Auto HG too bright in urban setting - how to adjust?

Post by hubaiz »

You can eventually try and use the region function that will only use part of the image for calculation.
But in most cases best is if you check for time to time and if needed you correct the 'reference value'
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