Reply To: Software for photometry (image calibration)

Forums Photometry Software for photometry (image calibration) Reply To: Software for photometry (image calibration)

#620101
Mr Ian David Sharp
Participant

Hi Kevin,

Further to this, as Grant has mentioned, compare your uncalibrated lights to your calibrated lights. See my attached image where I show three heavily stretched images. Top left is uncalibrated – note the gradients and the dust marks. Top right is calibrated – note it looks pretty flat. Bottom is the flat frame with a big stretch.

Not the most dramatic example because my C11 has a pretty flat field over this sensor to start with. But – I must try and get rid of that horrible splodge on the sensor!

Cheers
Ian.

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