The shops in Belfast, Newry and Londonderry shut at end of trading on Friday.
It follows the announcement that administrators were appointed to The Jessop Group Limited on 9 January, at the request of the directors.
"It is apparent that we cannot continue to trade and as a result we have had to make the difficult decision to begin the closure of all 187 Jessops stores at the close of business today," read a statement from joint administrator Rob Hunt.
"Regrettably, this will result in around 1,370 job losses across the stores with further job losses likely, in due course, at the head office in Leicester.
"As a consequence of the closure, Jessops is no longer able to accept returned product from customers.
The company was founded 78 years ago in 1935 when Frank Jessop opened his first shop in Leicester and grew to become a major high-street retailer of photographic equipment.
Its core market suffered significant decline in 2012 and further deteriorated in the run up to Christmas as a result of reducing confidence in the UK retail sector.
"This is an extremely sad day for Jessops and its employees," the statement added.
"We are very grateful for the support we have received since our appointment and we will continue to ensure that employees are paid as they assist us during the closure."
Newry and Armagh Sinn Féin MLA Mickey Brady said: "This is a very sad day for the staff of Jessops and I am disappointed that the administers could not have done more to save the jobs.
"In the current economic climate any job losses is a blow to the workers, their families and all businesses. It is now important the the administrators honour the full entitlements that are due to the workers."