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Edge to edge to sharpness
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Back focusing
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Forward focusing
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Resolution
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User movement
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Overall softness
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Customers expectations of their equipment
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Using older - non digital lenses on digital cameras
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Using non genuine lenses on your camera
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| Using new cameas with older lenses |
The process of testing and calibration is:
Camera Body:
We test the focus of the body using our factory calibrated test lens and specific test targets. If calibration is required to the camera body, then we use the camera's specific service software to perform the necessary adjustments.
Once we have adjusted the focus under "lab" conditions, we then take several shots in normal shooting environments to confirm the adjustments.
Lens:
We test each lens across the full focal range as there can be focal variations, Eg: 24-70 - the 24 mm end may be sharp and 70 mm end the focus is out.
We test for edge to edge resolution, focus point (back/forward focus), and we also check for dust, fungus etc.
To test the focus point, we once again use factory specified targets and in most cases we use the lens service software to perform any necessary adjustments.
To test the resolution we use a projection system which projects a resolution chart through the lens optics onto a 4m wall. This enables us to easily check edge to edge resolution across the full focal range.
Camera Clinic's focal/resolution testing.
The general turn around 3 to 5 days however it can be subject to change.
To apply focal adjustments we need to have the calibration software for the camera and/or lens. Please phone or email us for conformation for your equipment.
If you choose to bring the camera and lenses in please email or phone ahead and we may be able to pre-book in your focal calibration adjustment.