Exegesis:

eipan de pantes ‘all said,’ i.e. all members of the Sanhedrin.

su oun ei ho huios tou theou ‘so you are the Son of God?,’ drawing the inference from v. 69, and implying that the concept of the Son of man and that of the Son of God are here virtually identical.

humeis legete hoti egō eimi ‘you say that I am,’ with emphasis on humeis, ‘you, not I,’ but not implying a denial.

Translation:

You say that I am, or ‘you yourselves say that I am he’ (Nieuwe Vertaling). By changing the question just uttered by his opponents Jesus represents them as having said that he is the Son of God (which actually is his opinion not theirs). A too literal rendering may easily suggest that Jesus has another, or no opinion on the matter. To avoid this some versions give slightly adjusted renderings such as, ‘you say rightly, I am he’ (Bible de Jérusalem), ‘as you say: I am He’ (Balinese), ‘as you said to me, I am that’ (Ekari).

Quoted with permission from Reiling, J. and Swellengrebel, J.L. A Handbook on the Gospel of Luke. (UBS Handbook Series). New York: UBS, 1971. For this and other handbooks for translators see here . Make sure to also consult the Handbook on the Gospel of Mark for parallel or similar verses.