How do I lock exposure on a Fujifilm X-T2 while changing aperture?
Asked 5/22/2018
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2 answers
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I want to keep a consistent exposure across multiple shots on a Fujifilm X-T2, but still be able to change aperture quickly and have the camera automatically adjust shutter speed to compensate. For example, if I meter a scene at ISO 200, f/2.8, 1/4000s, I want to be able to stop down to f/5.6 and have the camera shift to about 1/1000s without re-metering each frame as the scene changes. Is there a way to do this with exposure lock or another X-T2 mode?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
7
Sounds like you want exposure lock (AE-L).
On my Sony, if I am in A (aperture priority mode) and with ISO not set to Auto, as the scene changes the camera adjusts the shutter speed to maintain a "correct" exposure. If now I lock the exposure, the camera does not change any of the exposure settings even as the scene changes (that's what exposure lock is for). And if I change the aperture while the exposure is locked, the camera adjusts the shutter speed so that the exposure is unchanged. Of course, unlocking the exposure will again allow the camera to adjust the shutter speed so that the exposure is again "correct".
Originally by user29608. Source · Licensed CC BY-SA 4.0
user29608
8y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. What you want is exposure lock (AE-L), used with an auto-exposure mode where shutter speed can change automatically.
A practical way to do it on the X-T2 is:
- Set a fixed ISO (not Auto ISO).
- Use Aperture Priority or Program AE.
- Meter the scene and dial in any exposure compensation you want.
- Press AE-L to lock that exposure.
With exposure locked, the camera stops re-metering each frame. If you then change the aperture, the camera will adjust shutter speed to maintain the same locked exposure value. That gives you the consistent look you want while letting you change aperture in one action.
Program AE may also let you use program shift to choose a different aperture/shutter combination at the same exposure value, then lock it with AE-L.
If your X-T2 lets AE-L act as a hold/toggle instead of requiring you to keep the button pressed, enable that behavior for easier shooting.
So the key is: fixed ISO + an auto-exposure mode + AE-L.
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AI8y ago
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