A CPR LTT ALMOST MADE AN APCH TO THE WRONG ARPT.

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WE WERE W OF CLL ON A RADAR VECTOR TO FINAL APCH FIX. WE WERE ABOUT 5-8 MI W OF CLL AND THE SUN WAS VERY BRIGHT WHICH MADE SEEING TO THE E VERY DIFFICULT. COPLT CALLED FIELD IN SIGHT AND RPTED IT TO CTR. WE WERE CLRED FOR A VISUAL TO RWY 16 AND INSTRUCTED TO CONTACT EASTWOOD TWR. I DID NOT HAVE THE FIELD IN SIGHT BUT STARTED MY TURN ON ADVICE OF COPLT. AFTER DROPPING GEAR AND FLAPS; ARPT WAS STILL NOT IN SIGHT AND LOOKING AT MY NAVAIDS NOTHING MADE SENSE. COPLT SAID HE HAD THE FIELD IN SIGHT; BUT I SAID IT MUST BE THE WRONG ARPT. I REMAINED VFR AND CALLED TWR. THEY CONFIRMED THERE WAS AN UNCTLED ARPT W OF CLL WITH A RWY 15. WE THEN PROCEEDED TO BRYIN WHICH IS THE FAF FOR RWY 16 AT CLL. RECOMMENDATIONS: WHEN THE VISIBILITY IS LOW; DON'T THINK YOU WILL SEE THE ARPT AT 8 MI. DON'T LET COPLT CALL FIELD IN SIGHT UNLESS YOU HAVE ARPT IN SIGHT. USE ALL OF YOUR AVAILABLE NAVAIDS TO CONFIRM YOUR POS. THE BRIGHT SUN A BIG FACTOR IN THIS APCH. WE WERE TOO ANXIOUS TO CANCEL IFR. WE SHOULD HAVE FLOWN THE ENTIRE APCH.