[Marc-André Haldimann]

Thanks to George Morrison, over on Late war Bf 109's Group FB, we now know this is Bf 109 G-5 "Weisse 21" 1./Erpr.Kdo 25 at Wittmund, 25 June 1943. On the left is Uffz. Ulrich, who had just received the EK II; on the right, Uffz. Stawinoga.

The key for this ID is another photo from the same sequence published in Prien, Rodeike and Stemmer 1995, Bf 109 F, G & K Series, p. 135.

Cheers
Marc