Start Focus Trim procedure
Enabling Focus Trim Tool
Save Focus Trim value
Start automatic trim
Adjust focus manually
Focus Trim Tool
This tool will guide you through the process of obtaining the optimal Focus
Trim, making sure that the focus system will achieve the best possible
accuracy.
Your XF Camera and lenses are manufactured to the highest precision
standards, however even slight di
ff
erences within the tolerances of the
autofocusing system can lead to the focus being a touch o
ff
. The Focus Trim
Tool removes this issue by shifting the plane of focus slightly forwards or
backwards until a perfect compensation is achieved and stored within the
focusing system.
The Focus Trim Tool is disabled by default from the top touch screen because
it is not supposed to be used regularly. This means that you need to activate it
in the XF menu system under Tools or alternatively enable it under UI Setup >
Tools Enabled if you want to be able to use the swipe action to activate it.
Use the supplied Phase One Focus Trim Target or download it from www.
phaseone.com and print it. Mount the XF Camera on a tripod and make sure
that it is perpendicular to the focus target.
Next, make sure that the XF Camera is setup correctly by using the largest
aperture of the lens, for example f/2.8, setting the Drive Mode to Vibration
Delay, metering to Spot, and AF Mode to Average Focus.
Once you are ready, select the Focus Trim Tool as explained above. Then press
Start Tool. The XF Camera will now automatically check whether all the
conditions for a reliable focus trim process are met. It will for example check
whether the autofocus target has a proper distance, that the amount of light is
su
ffi
cient and whether the camera can do an auto focus on the target.
If all conditions are met, you are prompted to adjust the focus. This can either
be done in Live View, by pressing the Live view button, or by capturing images
with the rear user button. In Live View zoom to 100% on the screen. Then
move the Side Dial and Front Dial until you have achieved the maximum
sharpness. Start with the Side Dial, as it will adjust focus in larger 10x
increments, then use the Front Dial for fine-tuning in the smaller 1x increments.
Once done, press Start Trim and the Focus Trim Tool will measure whether the
camera can detect focus reliably. If this automatic step is a success, the next
step is to save the acquired Focus Trim value by either pressing the Save icon
on the touch screen or by pressing the Top Rear Key.
The Focus Trim Tool is described in full detail in the Honeybee Autofocus
System section later in this manual.
30
XF Tools on the Top Touch Screen
XF IQ4 Camera System Manual |
