Robin Pecknold

According to his wikipedia page his main acoustic is the Martin D-18

"Pecknold plays a Martin D-18 six-string guitar for most Fleet Foxes work."

According to his Wikipedia page he uses a 60s model of the CF-100

"He also uses a Martin D12-35 12 string and a Gibson CF-100 6 String. Both of these guitars date back to the 1960s."

The image shows Robin being handed the Oberon.

In this live video for the song 'I Am All I Need/Arroyo Seco/Thumbprint Scar', Robin Pecknold can be seen using a Guild F-50R with a double scratchplate. The R in F-50R is significant as it stands for Rosewood - this model has a rosewood back and sides, whereas the standard F-50 has a maple back and sides, also known as a F-50 BL (for blonde).

Robin Pecknold used the Gibson Folksinger F-25 during his performance of "Kept Woman" on April 2, 2016, at The Depot in Salt Lake City, as seen in a YouTube video by Neffets.

The Casino was used in the music video for 'He Doesn't Know Why'

Pecknold can be seen playing a Fender Mustang at 0:49 of this live performance of "Can I Believe You" by Fleet Foxes.

He uses a vintage Sheraton for several songs in this live set: 17:53 - Drops in the River 34:22 - Fool's Errand 37:29 - He Doesn't Know Why 41:27 - On Another Ocean (January / June) 58:53 - If You Need To, Keep Time on Me 1:13:57 - Fool For You It's likely an early 60s model because of the mini-humbuckers and the frequensator tailpiece. He also uses this in the music video for He Doesn't Know Why: https://www.youtube.com/watch?v=brZTvGIzeGg

According to his wikipedia page Robin uses a 60s model D12-35

"He also uses a Martin D12-35 12 string and a Gibson CF-100 6 String. Both of these guitars date back to the 1960s."

Played live on Mearcstapa

Robin Pecknold can be seen playing a Gibson Les Paul Signature Guitar

Robin Pecknold used a Gibson ES-330 Walnut during the 2011 tour, possibly for the song "Mearcstapa." A user-uploaded photo on Reverb provides visual evidence of this guitar. Note: The guitar is often mistaken for a 335.

In this YouTube video, he is using the Epiphone Riviera.

In a Reddit comment, Robin Pecknold confirms that he used a Gretsch Country Gentleman on the recording of the song "Montezuma" from Fleet Foxes’ album Helplessness Blues.