[ASI290MM] 12bit vs. 10bit setting in Firecpature

psajk

Hello,

I have just received my brand new ASI290MM. I'm struggling a bit with the settings in Firecapture and will appreciate some help.

I'm trying to figure out how I should configure Firecapture in order to achieve the expected 10bit 170 fps as stated for full res 1936×1096: 82.2/170 fps.

By default, I can obtain close to 82.2 fps but I have not been able so far to get anything above this value at full resolution. I have played with the HighSpeed box (and regulated the USB traffic), but to no avail.

I have tested the camera on my laptop and on tower pc, and gets the same results.

Any suggestion for me ?

kind regards,

Patrice

yang

HighSpeed shoud be effective, I connect 290 via USB3.0 port, set USBtraffic as 100 and turn on Highspeed, then it reaches 170FPS

psajk

Dear Yang,

thank you for your quick response.

Then I'm facing a second issue.

I am facing multiple capturing issues of USB traffic while Highspeed is on. Most of the times, the capture will fail is USB Traffic is set too high. I will get the camera work 100 % if USB Traffic is lower than 57.

This morning I have been able to get the camera achieve 134 fps for a few minutes with Sharpcap (I have hit the Auto USB setting quite a few times until it magically reached 80). But I am afraid I haven't been able to duplicate this. Both Sharcap and Firecapture will fail if USB Setting is higher than 57 with Highspeed on.

I have been able to reach USB 100 with Highspeed On. This can be achieved with Firecapture by lowering the gain . If Gain is approximately 20 or lower, USB traffic can be set as high as 100 and I can reach 160 fps. If Gain is higher than 20, then fps will quickly drop. If Gain is set above 100 then the capture will fail.

If I lower Gain to 1, and if I increase Brightness while keeping USB at 100, I will create the same issues. Fps will gradually drop until I receive the Capture Failed error message.

It looks as if the issues will occur when the image gets too bright (either by Gain and/or by Offset increases)

Do you have any idea about the issue behind this phenomenon ?

kind regards,

Patrice

Sam@ZWO

psajk wrote:
Dear Yang,

thank you for your quick response.

Then I'm facing a second issue.

I am facing multiple capturing issues of USB traffic while Highspeed is on. Most of the times, the capture will fail is USB Traffic is set too high. I will get the camera work 100 % if USB Traffic is lower than 57.

This morning I have been able to get the camera achieve 134 fps for a few minutes with Sharpcap (I have hit the Auto USB setting quite a few times until it magically reached 80). But I am afraid I haven't been able to duplicate this. Both Sharcap and Firecapture will fail if USB Setting is higher than 57 with Highspeed on.

I have been able to reach USB 100 with Highspeed On. This can be achieved with Firecapture by lowering the gain . If Gain is approximately 20 or lower, USB traffic can be set as high as 100 and I can reach 160 fps. If Gain is higher than 20, then fps will quickly drop. If Gain is set above 100 then the capture will fail.

If I lower Gain to 1, and if I increase Brightness while keeping USB at 100, I will create the same issues. Fps will gradually drop until I receive the Capture Failed error message.

It looks as if the issues will occur when the image gets too bright (either by Gain and/or by Offset increases)

Do you have any idea about the issue behind this phenomenon ?

kind regards,

Patrice

image over exposure may cause such problem

so please make sure the image is not over exposured