Cost of changing the view finder prism at CS?

[YqArts]

Hey guys, I just gotten a 5D from the resale market (Finally a FF ).

But I realised there is a slight chink in the view finder prism, I think its inside and I cant do anything about it.

Do you guys have experience replacing the prism at CS or at any other location? Thanks!

 

[YqArts]

I think its doesnt affect the IQ (which I can live with), but it acts as a flare or a distracting spot when im looking through the VF.

 

[koppite]

If yours is classic, I think you just need to change the focusing screen cos I had same issue last time. I recommend going for Ee-s screen, cost $59, changing is free in csc. You need to purchase it from showroom.