Sensor Analysis on ZWO ASI183MM Pro failed

A place to report problems and bugs in SharpCap
Forum rules


If you have a problem or question, please check the FAQ to see if it already has an answer : https://www.sharpcap.co.uk/sharpcap-faqs

Please also read about Troubleshooting USB Issues before posting.

*** Please do not post license keys - please report any problems with licensing to 'admin' by private message ***

Please include the following details in any bug report:

* Version of SharpCap
* Camera and other hardware being user
* Operating system version
* Contents of the SharpCap log after the problem has occurred.
[If SharpCap crashes, please send the bug report when prompted instead of including the log]
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Sensor Analysis on ZWO ASI183MM Pro failed

#1

Post by DanK »

Also failed


See attached bug report

Dan Kahraman
Attachments
Log_2021-09-17T13_33_13-5252.log
(291.09 KiB) Downloaded 39 times
User avatar
admin
Site Admin
Posts: 13177
Joined: Sat Feb 11, 2017 3:52 pm
Location: Vale of the White Horse, UK
Contact:

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#2

Post by admin »

Hi,

that log looks like there is varying illumination levels during the gain measurement stage (after uncovering the sensor). For instance we get values like

810ms exposure has brightness of 38%
1287ms exposure => 76%
1145ms => 74%
988ms => brightness 7% (!!!!)

The only things that could cause this are the camera not responding correctly to exposure changes or illumination level variations. In either case, they stop SharpCap from getting to the target brightness level required for measurements, so the analysis cannot proceed.

cheers,

Roibn
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#3

Post by DanK »

Hi Robin:

I restarted the computer and ran it again. Sensor Analysis succeeded on the ZWO 183MM Pro. The Altair 183c is giving me trouble

Not sure if I reinstalled Windows and all the programs on this laptop....

Dan Kahraman
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#4

Post by DanK »

Hi Robin:

I had not reset this laptop. Doing it now. Hopefully the problem with Altair 183c TEC is due to corrupt files. Given the problems with ASCOM Mallincamsky I have learned a great deal about that topic.

BTW, Sensor Analysis executed very wall with my Mallincamsky cameras although since they are not SDK based I probably have a few functions missing such as running and saving both 8 bit and higher bit depths of Sensor Analysis.

Dan Kahraman
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#5

Post by DanK »

Hi Robin:

Success! I reinstalled windows and the applications. Ran Sensor Analysis on the Altair 183c Protec in 12 and 8 bit RAW mode. I see two files are generated in the Sensor Characteristics folder.

The problem with the fan starting and stopping has been corrected too.

Once a year or every 2 years reinstall windows. Making sure your data and application programs ae stored on a portable drive.

Dan Kahraman
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#6

Post by DanK »

Robin:

Half the time sensor analysis on the ZWO is failing..perhaps more frequently. Here are bug reports.

I will post the bug reports tomorrow.

Dan Kahraman
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#7

Post by DanK »

Bug Reports attached...

Dan Kahraman
Attachments
Log_2021-09-17T22_05_21-7848.log
(109.91 KiB) Downloaded 35 times
Log_2021-09-17T21_50_09-7232.log
(152.01 KiB) Downloaded 43 times
Log_2021-09-17T13_33_13-5252.log
(291.09 KiB) Downloaded 46 times
User avatar
admin
Site Admin
Posts: 13177
Joined: Sat Feb 11, 2017 3:52 pm
Location: Vale of the White Horse, UK
Contact:

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#8

Post by admin »

Does the image keep flicking to black during the parts where you have the problem?

One thing that is common to all the logs is that SharpCap is making a small change to exposure (maybe from 1.1s to 0.8s) and suddenly the next measurement of image brightness is almost black (rather than reducing about 30% as you would expect).

cheers,

Robin
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#9

Post by DanK »

Hi Robin:

It is extremely fast compared to the other cameras. Blindingly fast!. I got one sensor analysis at 16 bit and when I attempted 8 bit, it would not Subsequent attempts at 16 failed. Maybe the sensor analysis on the ZWO is too fast?

All my cameras with the exception of the Mallincam DS287m (ASCOM) have been successful.

I have yet to test the Mallincam DS432m and DS26c

Meade LPI-G and DS287c also were successful, whilst the DS287m does not interact with Sharpcap.

Dan Kahraman
DanK
Posts: 142
Joined: Sat Dec 28, 2019 9:58 pm

Re: Sensor Analysis on ZWO ASI183MM Pro failed

#10

Post by DanK »

Dr. Glover:

You are correct in your observations. I am running Sensor Analysis with ASI Camera 2 (ASCOM) and it isn't as "jumpy" and it isn't going from black to white as with the SDK software.

Dan Kahraman
Post Reply