This is topic My 8mm convertions to digital in forum 8mm Forum at 8mm Forum.
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Posted by Amund Hovde (Member # 4948) on October 07, 2015, 06:19 AM:
What do you think of my result?
https://vimeo.com/138908811
Posted by William Olson (Member # 2083) on October 07, 2015, 11:12 AM:
Good results. However, it does have a flicker to it. Is this a real time transfer? If so, what was the frames per second rate?
Posted by Martin Jones (Member # 1163) on October 07, 2015, 11:15 AM:
The flicker speed would be indicative of a 3-blade shutter projector running at 18 fps.
Posted by William Olson (Member # 2083) on October 07, 2015, 12:41 PM:
Yes. I just wondered if Amund was aware of this. If a variable speed projector is used, he can increase the speed to 20 FPS to eliminate the flicker.
Posted by Martin Jones (Member # 1163) on October 07, 2015, 02:00 PM:
In Europe, we reduce the speed to 16.67 fps.
Posted by William Olson (Member # 2083) on October 07, 2015, 03:38 PM:
Yes. Europe is PAL. USA is NTSC.
Posted by Brian Fretwell (Member # 4302) on October 07, 2015, 05:35 PM:
Well Europe was 625/50 PAL and USA 525/60 NTSC, Britain is now 50 FPS digital so not really PAL as no subcarrier.
The BBC did do test colour transmissions in the 1950's - they were 405/50 NTSC!!!!!
Posted by Amund Hovde (Member # 4948) on October 08, 2015, 05:18 AM:
it is realtime transfer 24 fps
Posted by Osi Osgood (Member # 424) on October 08, 2015, 11:07 AM:
Not bad at all! ![[Smile]](smile.gif)
Posted by William Olson (Member # 2083) on October 08, 2015, 12:19 PM:
Perhaps a 5 bladed shutter at 24fps would eliminate the flicker.
Posted by Martin Jones (Member # 1163) on October 08, 2015, 01:55 PM:
No, that will only work where mains is 60hZ. But if the shutter is two-blade, 25 fps will be OK.
Posted by William Olson (Member # 2083) on October 08, 2015, 07:51 PM:
Got it. Thanks.
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