Light Meter & Shutter Calibration

Shutter Timing Matters

The camera shutter controls how long light is allowed to reach the film or sensor.

If its actual timing no longer matches the selected shutter speed, exposures can be affected even though the camera appears to fire normally.

Some inaccuracies may call for adjustment. Others are symptoms of mechanical problems that need repair or service before calibration makes sense.

Mike evaluates the camera and determines which situation you have.

Listening to a shutter can tell an experienced technician quite a bit. It still does not replace checking what the camera is actually doing.

Light Meter Accuracy Matters Too

A built-in light meter is useful only if its readings can be trusted.

Age, electrical problems, component changes, previous adjustments, or other faults can affect meter operation. A meter that moves is not necessarily a meter that is reading correctly.

Mike checks the equipment and determines whether calibration is possible and whether something else is causing the problem.

With older cameras in particular, calibration sometimes depends on the condition of components that may no longer be available.

That is why every camera is handled case by case.

Previous Adjustments Can Make Calibration More Involved

Calibration points are understandably tempting when someone is already troubleshooting an exposure problem.

The trouble is that adjusting one setting without knowing the actual cause can move the camera farther away from where it started. When that happens, Mike first has to determine what has already been changed before he can address the original problem.

The same applies to previous repair work. Missing screws, disturbed mechanisms, added lubricant, or altered settings can make calibration more involved and may affect what can ultimately be corrected.

If anything has already been adjusted, simply tell Mike. Knowing that ahead of time is useful.

If nothing has been touched yet, testing the camera first usually provides a much cleaner starting point.

Adjustment screws are very good at adjusting things. They are less good at explaining why.

Calibration Cannot Correct Every Failure

Not every shutter or meter problem can be solved through adjustment alone.

A worn component may need repair. A part may no longer be available. There may be an underlying mechanical or electrical problem that has to be addressed first.

Sometimes Mike may recommend a repair or CLA rather than calibration by itself. In other cases, the camera may no longer be a practical candidate for the work.

If that is what he finds, he will explain why.

How Long Does Calibration Take?

Timing depends on what the camera actually needs.

A calibration that turns out to require additional service becomes a different job from a simple adjustment. Mike’s current workload also matters because Camera Tech is a one-technician shop.

If repair parts are needed—especially for older equipment—availability can extend the turnaround significantly. Some jobs may take weeks or months.

Mike discusses timing when the camera is evaluated and will give you the most realistic answer he can based on its condition and the work ahead of it.

If you need the camera for a specific date, mention that at the estimate. It is much easier to discuss a deadline before the repair begins than discover one halfway through.

Free In-Person Estimate

For light meter and shutter calibration in Orange County, bring your camera to Camera Tech at 1940 N Tustin St, Suite 114, Orange, CA 92865.

Estimates are free. No phone estimates.

No guesswork. No shortcuts. Measure it, find the problem, and go from there.