Why are my flats looking like this?

[Grant93]

Hello there!

After taking some flats and stacking them to a set of data, its basically made the bottom of my picture super light, where the flat is super dark. Just wondering how I can amend this.

I do the T-shirt and daytime sky method, keeping the t shirt tight with one of my fiances hair bobbles! 😅

Thanks in advance!

IMG_1252.CR2

[alacant]

Post a -minimum of- a light frame.

Cheers

[Grant93]

Hi there! Think I sorted the problem, today I pointed it straight up at the sky, rather than an angle, and no shadow at the bottom. Thanks for the reply though!