Low FPS = wildly over-exposed images.

[andy.cox.1976]

Hi Folks

Quick question - I've been merrily using ML for 8 months now and very much enjoy this fine piece of free loveliness. However, I've never been able to use a low FPS rate to achieve time-lapse. This simply results in huge over-exposure. This even occurrs in manual mode. The shutter-speed I specify seems to be over-ridden, regardless of what I try.

I have had this issue on the various builds I've been using, mostly from February this year. Anyone else experienced this?

Thanks
Andy

[2blackbar]

everyone experienced this, buy ND filters

[andy.cox.1976]

Interesting - so why does this occur? Why does ML not apply the shutter speed I choose at Low FPS? i.e. 1/60 or 1/50 or 1/48 etc?

[Walter Schulz]

http://wiki.magiclantern.fm/userguide#fps_override
"Shutter range: displays the available shutter speed range with current settings. When you use FPS override, Canon menu will still display 1/30 ... 1/4000, but the actual shutter speed will be different; read it from ML displays. You can alter shutter speed range by changing the ratio between the two timer values (decreasing timer B will result in faster shutter speeds available)."

[andy.cox.1976]

Ah, excellent, thanks!

[2blackbar]

Try constant expo ON in advanced settings

[Rshred]

When you go into the FPS Override Menu is it set for Low light, exact fps, high fps? I use exact fps and can change the shutter speed freely whereas with low light it overrides the shutter.
Hope this helped.
Rob