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INDI Library v1.9.7 Released (29 Jul 2022)

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ASI294MC Pro, USB bandwidth and video preview frame rate

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Hi,

I’m using Astroberry on a RPi4 and a ASI294MC Pro cam connected via USB 3.0. When doing a full size video preview in Ekos capture module, I get a max. frame rate of approx. 3 fps. I this normal or is there room for improvement? When I played with the USB bandwidth setting (set from 40 to 70), I once managed to get 10 fps, but this was not reproducible. Now I’m back on 3 fps regardless of the bandwidth setting.

Firecapture (on the same RPi4) manages to get 10-12 fps max.

What are your fps’ using ASI USB 3.0 cams? Am I missing something, or am I doing something wrong?

Thanks and CS
Bernd
10" F5 Newton and 130mm F7 Apo on EQ6-R, ZWO EAF focusers, DeepSkyPro 2600c, ASI183MM, RPi4b 8GB
2 years 3 months ago #51986

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I do get ~3.7fps (raw 16bit) streamed to my client computer with an ASI 294MC Pro connected to the server, bandwidth set to 40.
With the camera connected to my laptop directly, I do get ~6.8fps.
2 years 3 months ago #51998

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Thanks for the reply, so your fps is in the same ballpark. Seems to be what you can get with this cam.
10" F5 Newton and 130mm F7 Apo on EQ6-R, ZWO EAF focusers, DeepSkyPro 2600c, ASI183MM, RPi4b 8GB
2 years 3 months ago #51999

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I have pretty much the same question but with the ASI 183MC Pro on USB 3.0. I see you list having a 183.
According to the spec for this camera it is capable of 19fps@5496x3672 to 308fps@320X240

So a few questions if I may:

1. Is the indicated fps only related to the preview and the actual capture is faster ?

2. Why I can only achieve up to around 6-8 fps when running at 5496x3672 instead of the advertised 19 ?

3. Is running the guide camera (QHY 5L) off the ASI 183 USB hub causing the issue, and it could be improved by wiring the two separately ?

4. How would I switch to the other video modes to achieve the higher frame rates ? I checked in Indilib settings for the camera but didn't see it.

Thanks

Damian
WO ZS61 II, ASI183MC Pro, ZWO 120MM-S Guider, ZWO EAF, HEQ5 Pro, INDI/EKOS on Ubuntu 20.04
4 months 2 weeks ago #81558

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Frame rates can also be bottlenecked by the frame exposure time.
INDI/KStars on Raspberry Pi 4, 4gb
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
PHD2
Waveshare Stepper Motor Board - DIY Focuser
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.
4 months 2 weeks ago #81564

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