Scott,
The alternative would have been to either a) wait for sunrise (for sky flats), or b) take Andrew's 20Da and his 200mm F/2.8L home to take flats in my own time. I think both were out of the question.
Regards,
Humayun
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Originally Posted by tornado33
Thanks Humayun, thats an excellent way of taking flats  The screen is perfectly evenly lit, making an ideal flat field.
Scott |