Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - gmr20

#1
I have a problem during a sunset sequence in the city. It's hard to get both day (sunset) and night exposures correct.

In the beginning, both Highlight Ignore and SNR limit affect the brightness of a picture.
However, when night comes, it seems only SNR limit affect the brightness.
It matches the wiki: SNR has higher priority, but there comes a problem.

(I found that Shadow SNR didn't affect exposure as much as Midtone SNR. So I only discuss Midtone SNR below.)
With 5EV, it's ok at daytime (sunset), but too bright at night, inducing too much clips of city lights.
If I use 4EV instead, the clips are ok, but it's way too dark at daytime, even darker than a normal 0EV exposure.

City lights always have clips at night. If clips are too much, it's doomed. I can't control it now because of the priority.
I guess this can be solved if I can set Highlight Ignore with higher priority than SNR.

Is this conclusion correct? Or am I wrong on some points/settings which lead to the failure?
If the conclusion is correct, can you add a priority option on this? Thanks!
#2
Hi, I use EOSM. I have a suggestion for AETTR in ML.

Like Bulb Ramping, can you add a Sunset/Sunrise option to let the exposure only decrease/increase?
I got some terrible flickers during changes occasionally. Say 4" to 5", it's like "...4,4,4,4,5,4,5,4,5,4,5,5,5,5..."
#3
Camera-specific Development / Re: Canon EOS M
July 01, 2015, 05:54:03 AM
Is it possible to manually choose 1/3 stop of ISO when taking a photo, such as 125, 160, 250, 320?
Thanks.
#4
When I use FPS Override to shoot a video at night with very low FPS (about 1),
the first few frames (of both video file and LCD when shooting) will go very dark, then very bright, and then normal.
Is this a bug? Or can you make an adjustment for it? Thanks.

Meanwhile I need to use EV -3 for a correct brightness video at daylight with a ND8. That's quite weird too.