agreed with the CPL filter , oh 1 thing to mention here is , CPL not only use for morning n evening only , CPL is often use to bring out the background especially the sky or the sea.

Then bro , the object here is the Hot air balloon up high , i doubt u could use reflector on it...

then i believe that there is no way to have the bg and the object in a scenery well exposed without having to go into photoshop or post processing. At least up till now after i read through most of the magazine n books , i see none... so the best would probably be CPL filter , evaluative like Bro Amduser mention underexpose abit or more depends on the situation , make sure there is no highlight warning , then the rest is just post processing.

Thanks to all tai kor , i learn another thing here

Thank all you guys for sharing all these useful technicalities =)

I have learn a thing or two