doubt about kakashi?

[Darklor]

kakashi can sense chakra using his sharingan right. taking it in consideration when tobi first awakened sharingan in front of kakashi and naruto in episode 139 that time when kakashi saw his sharingan with his sharingan he must have a different feeling . in land of iron when tobi was being tied by yamato's binding technique kakashi was standing right back of tobi that time kakashi might have sensed tobi's chakra.
What do you guys think?

 

[Ninja Hidden in the Leafs]

kakashi can sense chakra using his sharingan right. taking it in consideration when tobi first awakened sharingan in front of kakashi and naruto in episode 139 that time when kakashi saw his sharingan with his sharingan he must have a different feeling . in land of iron when tobi was being tied by yamato's binding technique kakashi was standing right back of tobi that time kakashi might have sensed tobi's chakra.
What do you guys think?

maybe, but the last time kakashi saw obito was when he was crushed by a rock. I don't know whether or not he saw obito's chakra that last split second or not, but if he did, it probably had been to long ago for Kakashi to realize it was obito's chakra.

 

[Lt Fresh]

Well Obito's chakra has changed since Kakashi and him last meet.
-When they were younger Obito's chakra was his own.

-But during the summit when Kakashi meet him again Obito had his own chakra plus the 1st Hokage's, so that could be the reason why he couldn't tell it was Obito