Yeah, I understand that the photon hitting my eye right now was ejected from the sun 8 minutes ago. And if I could see it, a photon hitting my eye now from the big-bang was ejected 13bn years ago.

But if I have some super telescope here on earth, and I'm looking through it now, the photon that hits the eyepiece of the telescope also was ejected 13bn years ago.

I don't see how magnification allows me to see even older photons.