Raspberry Pi Forums

Honsolgen

yes, my mistake : I was using https://github.com/JamesH65/userland.git

Now it´s working fine. Thanks!

Honsolgen

hmm, does not work for me, maybe I did it wrong with the installation? I did git clone git ..... and then buildme raspistill is a new and slightly smaller file, but same version as with the last rpi-update: 1.3.6. But I´m still getting max 1/5s and Iso 640 :roll: check the latest shots: http://honso...

Honsolgen

^ thanks for the follow-up

Honsolgen

yesterday I did an rpi-update and it seems the longest exposure time is no longer 1s, but 1/5. I was using this line and got good results during day and night. raspistill -t 1000 -ex night -mm average -ifx denoise -o current.jpg At night images got automatically exposed with 1s. After the update yes...

Honsolgen

Thanks james and poing.

It seems this line suits my expectation best for a correct 24h auto exposure:
raspistill -t 1000 -ex night -mm average -ev 8 -q 14 -ifx denoise -o current.jpg

Honsolgen

my Pi is up to date.

if I use:
raspistill -t 1000 -ex night
1s is used

Kamera-Hersteller: RaspberryPi
Kamera-Modell: RP_OV5647
Belichtungszeit: 1.000s
ISO: 1000

with -ISO xxx a max. exposure time of 1/20s is applied.
So, the trick is not using -ISO

Honsolgen

it is as I said: at night condition executing -ex night without -ss does only produce images with a max. exposure time of 1/15sec. Hence, using -ex night doesn´t change anything with the whole scenario. -ex night -ss 1000000 will produce overexposed photos. Why can auto exposure mode not streched to...

Honsolgen

well, but -ex night without the -ss does produce images up to 1s during night?
if not - what I guess will be the case - using -ex night during day does not change anything.
I will test this in a few hours.

Honsolgen

I know, but that means I have the Pi calculate the day/night times and create cronjobs. And during dawn / dusk another cron for handling this light conditions. Correct auto exposure that can handle all scenarios from day/night/dawn/dusk is what I´ve asked for. What´s the problem to have the auto exp...

Honsolgen

Just a wish:
Any chance to implement at least the now maximum 1s exposure time into auto exposure mode as it allows continuous shots without adjusting daylight/night/dusk/dawn conditions with external programs and scripts.

Thanks

Honsolgen

maybe it´s because accessing the user-space filesystem SMB is not implemented within raspistill.

At least I can tell:
I have an sshfs filesystem mounted on my pi. And I just tried it with raspistill.
Works flawless

Honsolgen

two lines in a shell script
capture the image with raspistill locally
then copy the image to your mounted device

Honsolgen

Gegenlichtblende!

Honsolgen

try the -q switch.
my daylight shots are done with -q 13 ... the files are much smaller and I do not see a visible difference in image quality with the 2592x1944 resolution.

http://adr.dyndns.org:82/webcam/raspberry-pi/#/infos

Honsolgen

raspivid && images?

Denk nochmal drüber nach Meister aus NRW oder ist da schon Karneval ? ...

Honsolgen

Any progress with longer exposure times?

For night shots it´s very much needed.
The current 1s. limit is very much a bad thing!

15s shutter time in combination with iso 100 would be great to see implemented.

Thanks!

Honsolgen

thanks,
uncomment it in rc.local stopped the exclusive access

I´m testing the PiCam as webcam, because the image quailty is surprisingly very good
http://adr.dyndns.org:81/webcam/raspcam/

so I need raspistill working in a shell script

Honsolgen

after installing it raspistill is not working anymore how to remove it? Or at least stopping the exclusive access of the cam? raspistill -ex night -ISO 500 -ss 1000000 -t 10000 -w 1600 -h 1200 -q 75 -o current.jpg mmal: mmal_vc_component_enable: failed to enable component: ENOSPC mmal: camera compon...

Honsolgen

SetUID on vcgencmd and it works

chmod u+s /opt/vc/bin/vcgencmd

Honsolgen

[wrong thread --sorry]

Search found 20 matches

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