Posted 09 December 2009 - 07:42 AM
great lenses which don't flare as much is the simple answer, but even the best of lenses will flare a bit when you blast light into them. chances re your filter is exacerbating the situation. and any harder source will make it worse.
Recently while shooting with Ultra Primes, which are great lenses, I had problems with flare from lights not even in the frame... just happens and you gotta work 'round it however you can. In your case, i'd recommend finding some lenses which handle the bright sources in frame better, and, as mentioned, loosing the filter for a bit. Lenses designed for DSLRs should hold up a bit better on a DSLR than those for a film SLR. This has to do, I think, with the angle at which the lens bends the incoming light-- the DSLR glass (like digital cine glass) puts it out more "straight on" towards the lenslets which are mounted on the CMOS chip of the camera (if memory is serving me right now.)