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Paul, I am at 2958mm and PL16803 which is a large FOV chip.
I have a 150 point T-point model and I consistently get the object about 1/8th of the image from the centre of the view. This is plenty good enough for me.
It also lands the object in the FOV of the 8300 chip which is a lot narrower field of view.
I hear of others who get their pointing to centre of an image routinely but I frame the image anyway so it isn't that important to me. I just want the object in the image without having to hunt for it.
Doing a larger model, tweaking polar alignment and making sure there is no flex in your imaging system would be the things that would improve the pointing accuracy.
Greg.
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