Liveview shutdown every 30mn? a solution?

[fjhdavid]

hi,

 

I use a lot liveview for planetary imaging; I use loop but I discovered that even if you disable the automatic shutdown, liveview can't be used more than 30 minutes even if you are recording; (It is true at least for the eos 500d, eos 550d, eos 600d...I checked these three manuals)

 

The problem is that when the mirror is released, you have to manually shut off/on the camera, otherwise Backyard is locked (even if you restart the computer);

 

I don't know if it is possible, but maybe a solution could be that the software (in planetary mode) process an automatic liveview on/off every 29mn? then you shoud be able to use the planetary mode as long as you want?

 

regards

Francois

[s3igell]

Operating in LiveView or Movie mode for long periods of time, even 5-10 minutes, really heats your Sensor and the rest of the Electronics.  If you were to take even a short Test Image so that BYE could read the Temperature value, you'd likely see Temps in the 50-60*C Range.  These extremely high Temps cause the Sensor to record lots of Noise, which would make any DSO Images rather unusable and probably even show up in your Planetary Images as stuck-on Hot Pixels and a slight trend towards red-ish background.  At the end of your 30min LiveView sessions, the Sensor Temp is surely near or at the Operating Limits of the DSLR...

 

Of curiosity, which Planetary Targets are needful of such long AVIs ??

[fjhdavid]

Thanks for your answer; I didn't think about sensor temperature...

 

 

in fact, I take only 2mn or 3mn long clip (around 3000 frames to 4500), but I was thinking to take 2mn clip, then wait 10mn, and so on;

 

another thing is that I remote my scope and when the planetary mode end after 30 minutes, you have to go to the camera to do an off/on cycle (no way to do it with remote command)

 

François

 

 

 

 

 

[jimwc6491]

all

 

I did some reading in my T3i manual and looked for temp parameters it says the working temp. range is     0-40C /32-104F this may not be sensor temp parameters but might be something that could be used as a guideline. I also saw that the T3i gives a temp warning when in live view mode before shutdown.

I don't know if this warning is transferred to BYEOS and displayed or not.

   

[admin]

Thanks for your answer; I didn't think about sensor temperature...

 

 

in fact, I take only 2mn or 3mn long clip (around 3000 frames to 4500), but I was thinking to take 2mn clip, then wait 10mn, and so on;

 

another thing is that I remote my scope and when the planetary mode end after 30 minutes, you have to go to the camera to do an off/on cycle (no way to do it with remote command)

 

François

 

 

No need to power off/on the camera.  Just go into Image Capture mode during your 10 minute wait.  This will flip down the mirror and the camera will cool down... then go back in planetary mode for your next 2 minute recording.

 

Hope this helps,

[s3igell]

Guylain, can you confirm that the Camera remains in LiveView mode throughout ALL the time that the User is in the Planetary or Frame&Focus Modes ??  Or, does the "Pause" actually drop the Camera out of LiveView ??  While hitting the Pause in either does result in the LiveView display image no longer updating, I only hear the Mirror Drop when I move out of those Modes by selecting Imaging Mode.

[admin]

Guylain, can you confirm that the Camera remains in LiveView mode throughout ALL the time that the User is in the Planetary or Frame&Focus Modes ??  Or, does the "Pause" actually drop the Camera out of LiveView ??  While hitting the Pause in either does result in the LiveView display image no longer updating, I only hear the Mirror Drop when I move out of those Modes by selecting Imaging Mode.

 

Yes, it remains in live view.  You need to move to Image capture to leave live view.

 

Pause simply ignores the sensor readings... so it will continue to heat up the sensor.

 

Hope this helps,

 

Regards,

 

 

[fjhdavid]

Should it be possible to add a button in planetary mode (or in the settings), that will desactivate the live view before beginning of the pause, and re-activate planetary mode just after the end ?

 

this way, it would be possible to do automation (like a plan in imaging mode) for several hours in order to track the best pictures without having to activate every 10 minutes the mirror

[s3igell]

Having confirmation of this observation does help.

 

It's good to have something definitive to point back to for all the times when I've cautioned Users about not staying in Frame&Focus due to the LiveView Heating consequences.

 

 

[admin]

Should it be possible to add a button in planetary mode (or in the settings), that will desactivate the live view before beginning of the pause, and re-activate planetary mode just after the end ?

 

this way, it would be possible to do automation (like a plan in imaging mode) for several hours in order to track the best pictures without having to activate every 10 minutes the mirror

 

"Re-activate planetary mode just after the end"... the end of what? <_>

 

Regards,

[s3igell]

Perhaps this suggestion is for a later version, but...

 

From a User Workflow perspective, it is a bit detrimental to need to change from Frame&Focus to Imaging mode in order to terminate LiveView and reduce Heat Soaking of the DSLR.  The F&F panel provides substantial information which is still useful even while one might be performing some F&F-related actions to the Camera or the Scope or Mount, which would perpetuate the amount of time that LiveView is running but which one might not wish to lose that F&F Info/Image by switching over to Imaging during the interlude (especially the Image).

That Pause Button is so tantalizing, mainly because it seems to offer the answer to mitigating LiveView Heat-up while not losing access to the F&F Image or Info.

Could you consider enhancing the action of the Pause Button for a future release ??

[fjhdavid]

there are two way to use Backyard;

 

1- you are siting behind your screen and doing planetary; you launch a 3mn acquisition, and then you switch manually to "imaging" in order to reduce heating; you wait 5 or 10 or 15 mn, and then you activate planetary, and so on;

 

2- you plan to do 2h planetary  for jupiter for exemple, and you write a plan with loop and pause;

the only drawback is that the sensor heat and after 30mn, the camera is disable;

 

my suggestion is to add an option in the settings panel which allow an "automatic switch" to imaging mode at the beginning of each pause, and an "automatic switch back to planetary mode" at the end of each pause; this way no more sensor heating and no more camera disable after 30 minutes; the software is just doing what you did manually, with no more needing from the EOS firmware (but maybe I am wrong)

 

Francois

[s3igell]

Perhaps this suggestion is for a later version, but...

 

From a User Workflow perspective, it is a bit detrimental to need to change from Frame&Focus to Imaging mode in order to terminate LiveView and reduce Heat Soaking of the DSLR.  The F&F panel provides substantial information which is still useful even while one might be performing some F&F-related actions to the Camera or the Scope or Mount, which would perpetuate the amount of time that LiveView is running but which one might not wish to lose that F&F Info/Image by switching over to Imaging during the interlude (especially the Image).

That Pause Button is so tantalizing, mainly because it seems to offer the answer to mitigating LiveView Heat-up while not losing access to the F&F Image or Info.

Could you consider enhancing the action of the Pause Button for a future release ??

 

I'd like to re-emphasize this Feature Suggestion, as Jupiter Imaging Season is starting up.  Hopefully a number of BYE Users will be thinking about exploring Planetary Imaging Mode.

 

It would be Great if the Pause button in Planetary Imaging (and in Frame&Focus) would actually Pause the Camera usage of LiveView, thus removing a hidden source of Sensor Heating while retaining all the other Functionality of Planetary Mode such as the Planetary Image Plan Editor and the 5x Zoom Box.

 

Please at least advise whether the current "Pause not actually Pausing LiveView" implementation is due to a Design Choice or a Limitation of the Canon SDK.

[admin]

This is already done, it will be in 3.1 final release.

 

Regards,

[s3igell]

HOT DAMN!!

 

Guylain, sometimes you are almost Too Good To Us!!

 

Can't wait to try it out...

[astroman133]

I believe that the automatic LiveView shutoff is a safety feature that Canon has built in to keep the camera from overheating. 

 

Giving the camera an opportunity to cool down is a good thing.

[admin]

This is correct, it is an in-camera safety feature.  You want that feature.  Yes, it is annoying sometimes, but without it your camera would be fired by now <_>

 

This is a camera feature that can not be disabled via software so you need to work around it.

 

Regards,