@asiair@zwo#45182 Is it possible to set a custom ROI? I would like to use the full 3008 x 3008 resolution of the ASI533MC with the Video mode in the ASIAIR PRO.

I think the idea behind video mode is to use for planetary viewing where you need a small field of view or ROI. Usually you would use Preview or Live modes for larger FOVs. What would you be viewing at such a large FOV that you would want to use Video mode for it?

JohnD

    johnpd videos of the moon and sun in order to stack the frames. The full res of my camera would accommodate the full disk of the moon or sun with my scope with room to spare, but with the cropped ROI video mode they barely fit with only a few pixels to spare so they move out of frame right away even when guiding is decent.

      When I thought about it, I guessed that might be the case. I had issues with my current setup where I had to use a focal reducer to get the full lunar/solar disc. I don't have an ASIAir yet. I played with a friends for a bit and saw it has great possibilities. I am very interested in possibly getting one. Unfortunately I have QHY cameras so I would have to spend a bundle for all the equipment. So yes allowing full resolution in case of lunar/solar imaging would be useful. The other option (if it were available) would be to have the capability to create videos in Live mode. Unfortunately the manual is rather limited. I don't think it has all the latest updates they recently added.

      JohnD

      Well, I ended up using Fire Capture for the recent ISS Transit since the ASI AIR Pro didn't allow a custom ROI, as @WalterT mentioned, the moon gets cropped with the preset ROI of up till 1080p.

      @asiair@zwo If I could have set a custom ROI which took the full resolution of the sensor, that would have been great.

      a month later

      I 2nd that. It would also be useful when getting objects in frame. The limited preset ROI of 1080p really limits the FOV. It is much easier to compose/frame objects when you are in video mode and can see things move fairly quickly as you adjust your scope. Yes, you can use preview, but I find it too slow and I spend too much time composing/framing the target. I own an ASI183 and I believe it can do 17fps at full resolution; it would really be nice to take full advantage of that when using my Aire Pro.

      2 months later
      a year later

      Any updates on this thread? It would still be a good enhancement.

      Yes, video mode really is limiting as it is now. It may be OK for planetary, but for solar imaging doing full-frame video is the normal method of observing. Please consider adding this!

      I am in the same boat...I just received a ASI533MM to do solar work and get a full disk image off my Lunt 80mm scope...I can see a full image in focus in preview mode but I can't record in the native camera mode of 3008x3008. Ditto the above! Please consider adding this! Thx!!!!

        chrishet It is a trade off, it is a tiny device with very limited hardware resources built for convenience not performance.

          21 days later

          With the announcement of the new ZWO ASIAIR Plus 256G will ASI now address this?

            It is a limitation of imaging frame size processing, not saving

              stevesp ?? Not sure I understand...Is there a way to save the raw video files that I am not aware of?

                chrishet The 256 is said to increase the capture frame rate by 30% so yes it will help a little bit.

                    enaiman Higher frame rates will be useful however I am looking to be able to capture/save video files from my ASI533MM camera in its native mode of 3008x3008. Cropping or scaling to 1080p isn't going to work for me.

                        chrishet If that's the case then I am afraid that won't work for you - I didn't see anything mentioned about allowing higher resolutions. But you never know. It is better for you to send an email to ZWO and ask them directly about that.