S8mm to video transfer, flicker problem....

Post by **damocross** » Thu Oct 09, 2003 6:59 pm

Hi

i am trying to transfer some old S8mm film to mini DV and i am getting a flickering prob. I am using a Hama telescreen and various good quality cameras, i believe the problem is caused by the fact that i am projecting at 18FPS and recording at 25FPS.

I have a eumig 18/24fps projector, it is fairly simple but the quality seems fine. Would i need a new projector with a speed/shutter control nob? Or is it down to the type of camera i use? Or both??

I would appreciate any advice!!!

many thanks.

Post by **sunrise** » Fri Oct 10, 2003 12:06 am

Get rid of the Hama telescreen, you will get better results from filming a wall.

Flickering is caused by the cameras shutterspeed setting, which ideally should match the projectors projection rate (the fans).

This is difficult to match, but try to use the cameras auto exposure. If it's fast enough it should reduce the flicker, but won't remove it.

sunrise

YouTube · Post by **wahiba** » Fri Oct 10, 2003 9:06 am

The problem is the 'shutter' speed of the camcorder. I think it is an electronic switch rather than a mechanical shutter.

If it is adjustable set it to the lowest setting. 1/50 usually works with 16/18 fps projectors as each frame is projected three times, about 50 fps.

If the lowest setting is 1/60 I beleive there can be problems. I have had no problems with my Hi-8 camcorder.

Having the camera beside the projector and filming off a paper screen is definitely better than off a rear projectiion screen.

A system that takes the equivalent of a still picture of each frame will give the best results, but costs. Check out the Moviestuff link for the preferred amateur system.

Post by **Angus** » Fri Oct 10, 2003 1:00 pm

The other thing you might need to do is obtain a projector with infinately variable speed rather than merely 18/24 switchable. Then you can project at 16 2/3 fps which is fine for most PAL cameras.

Post by **Sonic Truth** » Fri Oct 10, 2003 7:11 pm

the Canon s-2 projector has a constantly variable speed control.

Post by **Angus** » Fri Oct 10, 2003 8:36 pm

So do the higher end Eumigs and Fujis. There are a few projectors out there with this feature, you might need to find one for perfect flicker free transfer.

Post by **setori** » Mon Oct 13, 2003 9:30 pm

to get flicker-free DIY transfert, you must have a clearscan shutter speed option on your camera. Clearscan is used for filming computers monitors. A few of tri CCD got that, like XM2 (GL2) canon. Or professionnals DVCAM. It can be nearly perfect.

Philippe

Post by **scott brooks** » Mon Oct 13, 2003 9:39 pm

What type of mini DV camera are you using?

Post by **setori** » Mon Oct 13, 2003 9:51 pm

Me ?
Canon GL2 (XM2 in France) is perfect for that. I bought it for that. Others camera got this too.
More expensice (but you can rent) is Sony 130 DVCAM.

Philippe

Post by **Old8** » Tue Oct 14, 2003 2:45 pm

Make a trascription of captured video using VirtualDub with Deflicker filter. It works great. Use manual exposure. If you use Steadshot turn it off. Adjust contrast, brightness and gama correction using your video editor filters.
VirtualDub - http://www.virtualdub.org/
Deflicker filter - http://neuron2.net/flick.html

This is the best article that I've read about transcripting 8mm/Super8 to video:
http://www.tomshardware.com/video/20030530/index.html

Filmshooting

S8mm to video transfer, flicker problem....

S8mm to video transfer, flicker problem....

It's not so hard.... Results are excellent!!!