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Setup
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WHEN is it necessary to adjust the target speed?
– In case of changing the camera
– In case of modifi cation of exposure time / frame rate
– In case of working under extreme circumstances, e. g. low temperature.
How do I adjust the “right” target speed?
Tip 1
: In order to achieve best results, please follow these rules of thumb:
– If possible work with open lens aperture.
A low depth of fi eld reduces the risk of a visible target and leads to the desired
typical look of the 35 mm fi lm picture.
The second aperture or the optical fi lter is helpful for the correct exposure.
– Use common exposure times like 1/48 s., 1/50 s., and 1/60 s..
The shorter the exposure time, the sharper the display on the target glass.
(it reduces the motion blur!)
We assume that a not visible target glass guarantees ideal results. A lot of user use the target
speed in a creative way and add to the picture intentionally grain e. g. by running the target in
extremely slow speed.
This is especially in case of high-resolution or highly compressed shooting systems only after
intensive tests advisable, because the above named effect can infl uence the actually record-
ed picture in a negative way. (Results are often clearly visible compression artefacts in the
recorded material). This is only ONE of the possibilities of the adjustment; a lot of users have
surely developed their own way.
Tip 2:
A practical alternative for adjusting the correct target speed (especially for high-
resolution cameras) is to synchronize the target with the electronically shutter of the
camera. Here the resulting artefacts are made visible fi rst with the help of a high-
resolution monitor and then the ideal adjustment of the speed is worked out.
A maximum speed is NOT always ideal. Similar to the adjustment of a running
fi lm camera to the fl ickering of a monitor, ONLY a speed for the set exposure time /
frame rate is appropriate.
1. Focus the camera on a constantly lit surface (this can be for example grey or
coloured). Light preferably for a high aperture, e. g. 16/22; do not overexpose.
2. Check fl ange focal distance and exposure time.
Set the controller of the target speed on a low value and start the PRO35.
3. Close the iris of the front lens until you can see movement artefacts between target
and shutter on the monitor.
