In an online tribute, Paul McCartney said Freeman was an "imaginative and a true original thinker" and "one of our favorite photographers during the Beatles years."
"People often think that the cover shot for 'Meet The Beatles' of our foreheads in half shadow was a carefully arranged studio shot. In fact it was taken quite quickly by Robert in the corridor of a hotel we were staying in where natural light came from the windows at the end of the corridor."
That photo, which first appeared on the Beatles' second British release, With the Beatles, captured and solidified the band's iconic early look.
Freeman also shot the cover photos for Beatles for Sale, Help! and Rubber Soul, and his individual shots of the band's members were used on the cover of A Hard Day's Night.
He also prepared a cover for Revolver, but the band instead chose to use the famed black-and-white drawing and photo collage created by their friend Klaus Voormann. Freeman never provided cover art for a Beatles album again. A reported affair John Lennon had with Freeman's wife may have been a contributing cause.
In his book about John, Lennon/Beatles biographer Philip Norman alleged that John's relationship with Sonny Freeman Drane inspired the song "Norwegian Wood (This Bird Has Flown)". Cynthia Lennon also wrote about the affair in her book, "John". Even so, some of Freeman's photos of the Beatles appear in Voormann's collage. Freeman also shot the cover photos for John Lennon's 1964 and 1965 books, "In His on Write" and "A Spaniard in the Works."
Here's a selection of Freeman's Beatles covers, including the "lost" Revolver photo collage he created, followed by Paul's full tribute. You can see more of Freeman's work in "The Beatles: A Private View."