anyone know why this should be?

[shamba504424]

hello

Another fantastic day for solar imaging here,sorry if it hasnt been where you are>have posted two images,one using a ZWO120 MC colour camera and the other taken with a ZWO174MM mono camera,both taken in the same scope i.e. Lunt 60mm PT BF1200 but yet the colour image shows the spot at top right but the mono shows bottom left,they were orientated the same way in the diagonal,probably missing something blatantly obvious to someone who knows what they are talking about but am a bit of a numpty in this department.

[vlaiv]

Image up/down orientation is depends on the way image is read. So called screen space assumes that first line is top line of the image, while standard coordinate space - one that we are used to is that Y coordinate starts at the bottom and increases upwards.

For this reason, different software will interpret up/down orientation differently.

In your case, obvious difference is in debayering. This means that two image were recorded using different file format on that one image was "pre processed" differently - like using Pipp for debayering and then saved as avi or something and other saved as ser.

In any case - it does not mean that there is something wrong with your gear - it's the software that reads files / data one way or the other.

[shamba504424]

Thanks for that,I see what you mean and understand,thank you

Tony