|1. Doing it yourself with white paper||moderate|
|2. Doing it yourself with a telescreen
|3. Letting a professional scan it at
Van Eck Video Services
In this explenation we are going to make use of a tele screen or glasscreen.
The glasscreens van Doornen give the best results. We advice the hama 3012 telescreens as the best purchase.
Place the projector at the side of the telescreen. Place the camera in front of it (see the next picture)
It is important that the speed of the projector is put on 16,66 images per second for a projector with a three-shutter (which most projectors have) and 25 frames per second for a projector with a double-shutter. This is to minimalize the flicking of the image. This requires a projector with continuous adjustable speed.
There are actually 2 groups of film projectors with continuous adjustable speed
1) Analog adjustable . There is no electrical control in here. The speed is managed by the amount of electricity the motor gets. This works, only is the speed not constant. When the projector heats, or the power on the reels changes (for instance when the film is played a part) the speed will vary. So practically it will be necessary to change the speed a little during the transfer.
An example from an analogue constantly adjustable projector is the Elmo GP-E projector. The most projectors in this class have a price between €110,- and € 160,-
2) Digitally adjustable. There is a electronic control with feedback. This feedback makes sure the projector will run at a constant speed. An example of such a projector is the Braun Visacustic 2000. There aren't a lot op projectors that have 16,66 frames per second with electronic feedback. This type of projector is also very expensive. But we have made electronic conversion kits to make this possible.
When your projector has no adjustable speed, it is possible to modify this with a few changes in the electronics. We sell conversion kits for this. we have these conversion kits now:
|Conversion kit||To be able to change the speed electronically continuous|
- Noris Norisound 110
The speed of the projector can be measured by the next device: Speed-o-meter - ELV RC200
When transferring films, it is important that you can adjust the brightness of the bulb. For dark images, you need extra light and for light images, you need to turn down the light intensity.
This lamp can be used for normal projection and for digitizing your films using a glass-screen or normal screen.
If the films contain sound, there are three ways to transfer it:
1. Copying sound from the projector speakers with the camera microphone. This is the simplest way, but there are a number of disadvantages: all ambient sounds in the room and the sound of the projector are also registered. There is also a great loss of quality.
2. Sound directly from the projector (audio output - often DIN5 ) to sound input from the computer. Here is no quality loss and also the ambient sounds are not recorded. The disadvantage of this way is that the video signal and audio signal are separate and synchronizing image and sound requires an extra step in the post-processing of the image and sound. These cables are often suitable for this purpose:
3. Sound from the projector to microphone camera. This is the best way. The image and sound arrive synchronously on the camera. Afterwards, the sound no longer needs to be synced with the film. What is important, however, is the use of an audio attenuator. The impedance of the output signal of the film projector is too high for the microphone input of the camera. The audio attenuator solves this problem. Besides the above two cables, an attenuator should be used. For example the Nedis Karaokemixerset. It is important to adjust the strength of the signal with the volume knob so that it is not drowned out, but also not too weak. Here is a picture of the way of connecting it:
Configure the camera on the manual-mode. Adjust the settings for brightness, aperture and the focus by hand.
The frames of the camera can be put from the camera on the computer for the finishing touch and export to files, DVD or Blu-Rays
After the video ís recorded by the camera, there are some post-processing steps. The most important is to correct the speed. The speed at which the film is recorded by the 8 mm film camera is different from the speed in which it is digitized. The formula to calculate the correct rate conversion is: 100 * (1 / (digitized speed / original speed)) %. For example, a movie recorded at 18 frames per second and digitized at 16.66 frames per second needs o be corrected by a factor of 108%.
Table with most common speeds:
|original speed||digitized speed||rate converstion factor|
We hope to have given you enough background information, which will give you the best choice for your situation.
If you have a question, please let us know. Do not be afraid to call us or send us an e-mail!