AF Consistency
Defocuses and refocuses again and again to show how repeatable focus is, with viewfinder or live view AF. Can show problems such as wear in the focus drive.
The guideFoCal Desktop · Windows and Mac
The original autofocus calibration software. Now FoCal 6.
Since 2011, FoCal has tuned autofocus on Nikon and Canon cameras that support adjustment. FoCal 6 turns calibration into a Kit Health Check: it keeps track of how every camera and lens is performing, and tells you when something needs attention.
Getting started
Connect, check, calibrate.
- 1
Download and connect
After you buy, you get an email with your account details. Download FoCal, put the camera on a tripod and the target on a wall, and connect by USB.
- 2
Check the setup
Target Setup checks the camera, lens, target and light, and tells you what to change.
- 3
Calibrate
Choose Focus Calibration and press Start. In minutes you have the best setting for that camera and lens.
Every edition
In FoCal Plus, Pro and Commercial.
Camera control and Target Setup
Connect with the USB cable that came with your camera and FoCal does the rest: it changes the camera settings, takes the shots, downloads and analyses them, and puts your settings back afterwards.
Target Setup checks the camera and target positions, distance, light level, camera, lens and FoCal settings and battery before you run a test, with live view so you can see what to adjust.
More about Target Setup
Fully Auto calibration
Put the camera on a tripod, the target on the wall, and run Fully Auto. FoCal controls the camera, captures and analyses shots, and settles on the best AF Microadjustment or AF Fine-Tune value. Where the camera won’t let FoCal change it, FoCal tells you the value to set.
The Fully Auto guide
Calibration Check
See how well your autofocus is working at the touch of a button, compared with the best FoCal can find, and whether it’s worth calibrating. It also works on tethered cameras that have no autofocus adjustment.
File Mode
Took the shots yourself? FoCal can work out the settings from the image files and run most of its tests on them.
FoCal Pro
Everything for a Kit Health Check.
Once a month, calibrate and then run FoCal’s other tests while you’re set up. The more results FoCal has, the sooner Kit Status spots a change, or confirms your kit is still performing well. FoCal keeps every result and shows how each camera and lens is holding up.
About the Kit Health CheckHistory, Kit Status and Analysis
FoCal looks back over every test you’ve run and tells you when something needs attention.
- Kit Status: every camera and lens pairing, when it was last tested and calibrated
- Maintenance Watch: pairings that are drifting, less consistent, losing sharpness or overdue
- Analysis: AF Fine-Tune drift, sharpness, consistency, dust and stabilisation over time; Lens and Camera Personality; camera bias; a body and lens grid
- PDF reports for any test, and for a camera, a lens or a pairing
- Export your history and merge it between computers
Your Kit Health Check
- Target Setup
- Fully Auto calibration · you’re set up, so it’s worth it
- AF Consistency
- Aperture Sharpness · or MultiTest
- Stabilisation Test · for stabilised lenses or bodies
- Dust Analysis · one run per camera body, not per lens
The full check and the trends need FoCal Pro.Compare editions
Compare with other FoCal users
You might have the best copy of a cheap 50mm, or the worst copy of an expensive 85mm. The Compare tab shows, score by score, where your result sits against other users of the same camera and lens, with notes on anything worth knowing. It uses FoCal Comparison Data, built from results FoCal users have uploaded since 2014.
Comparison Data needs FoCal Pro and active support.
The other tests
Aperture Sharpness
Which aperture is sharpest, and how much you lose wide open or stopped down. Can also show lens problems such as misaligned elements.
The guideMultiTest
Focus and aperture together: the sharpest focus at every aperture, and how focus shifts as you stop down. Works on cameras without an AF adjustment, too.
The guideStabilisation Test
Image quality with stabilisation on and off, so you can see how much it really helps when you’re holding the camera.
The guideDust Analysis
Where the dust spots are, which apertures they show at and how much they’re likely to affect your pictures, so you only clean when you need to.
The guideSnapshots (Nikon)
Capture your camera’s settings, edit them, share them and put them back in seconds. Also on your phone with the Snapshots app.
Premium mobile apps
With FoCal Pro and active support, you also get FoCal Mobile Pro (check and calibrate from your phone or tablet) and Snapshots Premium. Log in to the apps with your FoCal account. About the apps.
And more
- Test any focus point
- Compensate automatically for camera movement
- Lenses over 400mm
- Analyse image files from any camera
- Try beta support for new cameras
FoCal Commercial
Tools for camera businesses.
Customers and visits, a customer prompt when you connect a camera, a PDF job sheet for each visit, and your own logo on reports. Customer names stay on your computer.
Buy FoCal Desktop
Choose your edition.
Each includes 12 months of updates and support, and you keep the working software after that. Not happy? Tell us within 21 days of buying and we’ll refund you.
15% off FoCal 6 and Hard Targets
Enter FOCAL6 at checkout. Limited time offer. Applies to all FoCal software downloads and Hard Target purchases.
FoCal Plus
Quick and simple autofocus tuning.
£39.95$59.95with 12 months of updates and support
15% off at checkout with code FOCAL6
- Fully Auto calibration
- Target Setup and Calibration Check
- Lenses up to 400mm
- Windows and Mac
- Not included: AF Consistency, Aperture Sharpness, MultiTest, Stabilisation and Dust tests
- Not included: History, Kit Status and Analysis trends
- Not included: Comparison with other FoCal users
FoCal Pro
Tune, analyse and compare. Everything you need for a Kit Health Check.
£69.95$99.95with 12 months of updates and support
15% off at checkout with code FOCAL6
- Everything in FoCal Plus
- AF Consistency, Aperture Sharpness and MultiTest
- Stabilisation Test and Dust Analysis
- History, Kit Status, Maintenance Watch and Analysis
- Compare tab, with FoCal Comparison Data
- Lenses over 400mm, and image files from any camera
- FoCal Mobile Pro and Snapshots Premium
FoCal Pro + Targets
FoCal Pro with two FoCal Hard Targets.
£95.95$139.95with 12 months of updates and support
15% off at checkout with code FOCAL6
- The full FoCal Pro software
- 150mm and 210mm FoCal Hard Targets
- A bundle discount on the targets
Compare every feature by edition · System requirements: Windows 11 or macOS 15 Sequoia or later.