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Problem with Deep Space Frame Storage


larry

Question

I am using a Sony VAIO, VISTA operating System, 2 GB memory running at 1.8 Ghz laptop.  I am trying to use your program BYE 3.1 Premium I bought. The camera is a Canon Rebel T5i. The interface is USB.  I have no problem with the camera interfacing and doing planet video and focus.  However, when I try to do deep space images it has a problem.  With a capture plan of 40 frames at 60 sec per frame, the program drops storage of frames or doubles up on frames in storage.  When trying to do images only to the camera, the first several frames are ok, but later frames get lost.  Out of 40 frames I would only get maybe 23 frames stored on the camera on completion of the plan.   Some frames of 5 meg and other 10 or more meg.  Initial frames will download a second or so after the shot but latter frames take more than a minuet to download.  This also occurs in the PC-camera mode also.   I tried each of the three camera interfaces with no improvement.  The camera takes the shot 40 times but I only get 23 or so files on the memory card.  And there is a delay of more than 60 sec after the shot completes before the next shot starts.  I tried all types of settings in your program with no improvement.  Very frustration.  I had to go back to an older approach to taking deep space imaging.  Whats wrong?    

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Your post is confusing :(

Image file size is not determined by BYE, it the camera... but they should be all the same size.

As for time to download, looks like you may have in-camera dark substraction.  Please disable it if it is on using the camera menu.

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Yes I know it is strange about the file size.  But some how frames are being added before they are saved on the SD card.  Time stamp for the first several frames show 60 sec but latter frames show 120 or 180 sec between saved frames. A 40 frame 60 sec per frame plan would go on for a lot more than 40 minutes.  I do not think I have dark frame subtraction on the camera but I will check.  The camera works fine for normal non astronomy picture taking with out changing settings.  My older canon Rebel XS seams to work fine.   Of the 3 interfaces selection, what interface should I use?  I am using the "210".  I am confused too. .  

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1) " there is a delay of more than 60 sec after the shot completes before the next shot starts" - Turn Long Exposure Noise Reduction OFF (is only employed for 30sec+ Exposures)

2) The SDK for any Canon DSLRs has problems with Storage to SD Card - Set Storage to PC-Only

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Works a little better.  But still having occasional times when BYE shows 40 frames shot and only 20 or so frames stored with incorrect time stamp. Thats with picture going to camera only.  will try "PC-Camera" next but that will be longer. 

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1 hour ago, larry said:

Works a little better.  But still having occasional times when BYE shows 40 frames shot and only 20 or so frames stored with incorrect time stamp. Thats with picture going to camera only.  will try "PC-Camera" next but that will be longer. 

That can't be true... you said "Thats with picture going to camera only."

If you save images to camera only then there is no such thing as a BYE time stamp because the images are never sent to the computer.  

Did you mean "Thats with picture going to PC only"?

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Also the files on the SD card in the camera when saved are time stamped.  When I look at the files on the SD card which was in the camera those are the time stamps I am referring to.  Also there are only 20 or so files showing up instead of the 40 expected.   I tried the PC-Camera setting and I did get all 40 files (Pictures) for a trial run today so far.  I will try that configuration tonight.

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1 hour ago, larry said:

All Micro Soft files are timed stamped when saved.  Thats the time stamp I am referring to.

That's the thing... if you save to Camera only the computer timestamp is irrelevant. The time stamp comes form the camera firmware.  Hope this makes sense.

Glad the PC+Camera gave you your intended 40 frames.  It is odd that you don't get all 40 frames when saved to PC only. 

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I think that Guylain has it wrong...He only gets 20 or so images from a 40 image capture plan if he save to the camera only.

Larry, if the timestamp of the images on the SD card are wrong then you should check the camera's date and time. This is where those timestamps come from.

I have a T5i. When I bought it I needed to get a superfast SD card to support the faster processor speed of the camera. Using a slow SD card could be causing the camera to misbehave. When saving images to the SD card only, you might try putting a pause between images in your capture plan. I would start with a 30 second pause and if that eliminates your issue I would try reducing it.

And finally,  you can do all of this testing at the kitchen table during the day. There is no need to waste a dark night troubleshooting issues like this.

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Yes I been doing the testing during the day.  I think I have solved the problem than I go to take images at night and things do not go as expected.   The time is set correctly on the camera and I only look at the minutes anyway for the time stamp.  I will check the speed of the SD card and put in a 30 sec pause in my plan.

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Can I ask:  Why is your emphasis on storage to SD Card??  It seems that you keep coming back to that as your goal.

When you are using BYE, you really want to Save-To: PC (either PC-Only or if needed PC+Card).  This is the only way that BYE can perform certain functions such as add data to the EXIF and the Filename (Camera Temp, Type of Image, etc).

It is also the only way to avoid the vagaries of the Canon SDK (which you've encountered using Camera-only).

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6 hours ago, admin said:

That can't be true... you said "Thats with picture going to camera only."

If you save images to camera only then there is no such thing as a BYE time stamp because the images are never sent to the computer.  

Did you mean "Thats with picture going to PC only"?

 

2 hours ago, larry said:

All Micro Soft files are timed stamped when saved.  Thats the time stamp I am referring to.

"That with the picture going to camera only" - In that case, the Timestamp being recorded to the File when it is transferred from SD Card to PC will depend on the Software being used for the Transfer.  The "File Explorer" listing shown when you "Explore the Camera DCIM Directories across the USB" is actually generated by the Windows Camera Driver.

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