Technically the image is very slightly cropped as it was taken with about 550mm fl but the comet moved during the run so some slight cropping occoured. The normal FOV is 138x 92 arc mins, but will be a bit less because of the cropping.
I took the subs hand guiding on a guidestar with a separate guidescope and Q guider monochrome camera, my keeping the star centered on a virtual recticle on the laptop screen, as the 20+ year old Sampson mount has no autoguide capability and no dec drive. I aligned on the comet in Iris software, thankfully the strong central condensation was bright enough for Iris to do this
Note some uneven gaps between stars, caused by me not always taking each sub right away, sometimes Id pause to inspect each sub to make sure focus and guiding was okay, and pausing to go make a hot cuppa through the run