Specifications

Version 1.1 rev Jan 2013
Page 58
iXon Ultra
, Features and Functionality
3.4.1.1 - Points to consider when using FT Mode
• Inthismode,therearenoKeepCleanCyclesbetweenimagesduringanaccumulationorkineticsseriesasthey
are not necessary.
• Thismodegivesthefastestwaytocontinuallytakeimages;however,theminimumexposuretimeisrestricted
to the time taken to read out the image from the Storage area.
• Theaccumulationcycletimeandthekineticcycletimearefullydependentontheexposuretimeandhence
cannot be set via software.
• InexternaltriggermodetherearenoKeepCleanCyclesandtheExternaltriggerstartsthe"readout"phase.
The exposure time is the time between external triggers and hence the user cannot set the exposure or cycle
times. However, the user can dene the amount of time between the external trigger event occurring and the
readout starting. This can be useful in those situations where the TTL trigger occurs before the light event you
are trying to capture. This effectively moves the exposure window in time, but the exposure time is still the
period between trigger events.
• Thereisnoneedforamechanicalshutter.Theexposuretime(whichisatleastequaltothetimetoreadout
an entire image) is long compared to the time required to shift the image into the Storage area, and therefore
image streaking will be insignicant.