A 54-year-old man has admitted making thousands of indecent images of children.
Paul Elliot, of Hazel Gardens in Sawbridgeworth, appeared at Chelmsford Magistrates' Court on Wednesday, where he pleaded guilty to 15 charges.
He admitted making 2,539 images graded at level one, which is the least extreme, nine at level two and one at level four.
Elliot was granted unconditional bail and will be sentenced at Chelmsford Crown Court.
A date has not yet been set.