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Single-pass vs. multi-pass

434 Views 0 Replies Latest reply: Nov 29, 2012 8:10 PM by betaneptune RSS
betaneptune Level 1 Level 1 (0 points)
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Nov 29, 2012 8:10 PM

This regards my movie "Visuals for Timesteps" (VFT). This is a Super 8 transfer, so there should be grain visible.

 

I used the following settings:

H.264, 640x480, automatic key frames, automatic data rate, current frame rate (24 fps).

 

Viewed with QuickTime Pro 7. Run on 2008 iMac with OS X 10.6.8 - Snow Leopard

 

At Best quality I can see zero difference between single-pass and multi-pass. At High quality, multi-pass looks very slightly sharper with the grain just a wee bit better resolved. At Least quality, both look horrible, but they are easy to tell apart. 

 

There's a very small difference between High and Best (Best is definitely sharper), but it's definitely a bigger difference than between High single-pass and High multi-pass.

 

Do people here find the same? If so, there's not much point to multi-pass.

 

Maybe it's just the particular movie I'm looking at, VFT.

 

Bonus report:

Least - Awful - can see squares

Low - Squares pretty much gone, but still bad. Parts look "warbled".

Medium - Good minus

High - Very good, can see the grain, but definitely slightly blurry compared to best

Best - Very slightly sharper

 

Comments? Thanks!

iMovie '11, Mac OS X (10.6.8)

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