A camera chip containing yearbook photos was corrupted last week, forcing yearbook staff  to arrange two make-up days last Monday Oct. 1 and Friday Oct. 5 so students could retake their pictures.

The make-up days were also open to students who missed the original picture days due to confusion or absence.

Yearbook editors-in-chief Emily Persky ’13 and Alex Ravan ’13 plastered signs around campus and members of the yearbook staff announced via Facebook posts that the annual picture days would be Sept. 19 and 20.

Students could have their pictures taken in Chalmers Hall from 7:30 a.m. to 3 p.m. each day.

The dates were also marked in student planners.

In a change from previous years’ procedure, the yearbook staff said there would be no make-up day for students who did not take their photo on the appointed picture day.

After both picture days, Nathanson’s, the photography company that took the yearbook photos, told the yearbook staff that one of the memory cards had been corrupted, rendering all the pictures on it unsuable and forcing many students to retake their photos.

Nathanson’s was “very apologetic,” according to Persky, and the company set up two make-up days for students whose photos had been lost on the corrupted card.

“We decided to invite people who had not taken their photos to partake in this makeup day because Nathanson’s would be at school anyways,” Persky said.

Each member of the yearbook staff is responsible for collecting the photos of a certain number of students, she said.

“If a member of someone’s group was on the list of students who were on the corrupted file,” said Persky, “our staff members emailed them notifying them of the days to retake their photos and apologizing for the inconvenience.”

Courtney O’Brien ’15 had to retake her yearbook picture because the original was lost on the corrupted card.

“It was a little bit inconvenient but luckily it didn’t take up much time to get it retaken,” she said.