Does it make sense to shoot interlaced anymore??

[Phil Lee]

Hi

Originally Posted by Dave Mercer

A question.

I shot half a documentary at 1080p25 (in a 50i wrapper).

Now i've updated my camera. It shoots 1080i50, but not 1080p25 (the opposite of my old camera). I presume mixing the two framerates will look pretty bad and I should continue using the old camera for the remainder of the doc. New camera has better audio, better low light, and a few other upgrades.

I'm hoping to sell for PAL broadcast (so 50i).

Any advice?

Should be absolutely fine, the BBC do this all the time, if you watch BBC HD and have equipment that shows you the encoding method in real time, you can see dramas etc switching between between interlaced and progressive all the time.

You should treat all your footage as 50i, that's the reason we have 25fps in a 50i wrapper, so you can easily mix progressive and interlaced.

You should render out as 50i.

Regards

Phil

[Dave Mercer]

Thanks Phil!

I didn't realize the beeb did that, but good to hear that footage can be mixed and still look good. If only I had a PAL interlaced monitor down here I could do a little test mixing 25p in 50i stream with true 50i - all rendered out at 50i - to see what it looks like ...