Re: Fuji X-T5 - 'cannot use S.S. slower than frame rate' message
The Flying Man wrote:
Hi. I've just joined this forum and I've just purchased a Fuji X-T5 with no prior knowledge of the Fuji system, although I do already own a Sony A7.
I just noticed in the Movie Mode settings on the X-T5 the message ' cannot use S.S. slower than frame rate' message for all choices. At first I thought there was some setting I had to turn on or off in order to enable this , but I read the relevant chapter in the manual and there is no mention of this .
I read posts on several other forums from people who also wanted to experiment with slower shutter speeds in their film making - frustrated that their Fuji camera seemed not to be able to do it. Some responses to these posts suggested that you can't take the shutter speed below the frame rate from a purely physics point of view but contrary to that, I found information on the internet saying that you can, but not all cameras will do it.
My Sony A7 has manual exposure mode which allows you to freely adjust the shutter speed regardless of the frame rate setting - so it appears that you can do it , at east on that camera.
So is this a limitation of the Fuji X-T5 or is there a workaround? If the X-T5 cannot do it, is there a Fuji camera that can? I have only just purchased the X-T5 so as much as I like it already, it's not too late to return it for an exchange for a camera that does what I want it to do.
Many thanks in advance for any help and advice
Maybe I’m being dense — it happens, and I might be suffering from the aftereffects of a. covid vaccination ;-) — but it seems like it would be literally impossible to set the “shutter speed,” or exposure time to a value longer than the interval between frames — e/g: 1/frames-per-second..
To use simple numbers, let’s say that your frame rate is 30fps. The camera has to produce a new image every 1/30 second. A longer exposure would require more time than that between successive frames, right? With successive 1/20 second exposures, there is only time for 20 of them in 1 second (ignoring necessary time between frames, which will reduce that a bit more), so a 30 fps rate isn’t possible at a longer-than-1/30 second exposure.
Basically, A second is not long enough to hold 30 1/20 second exposures. 30 x 1/20 second exceeds 1 second.
Am I missing something here?
Oct 15, 2025 at 11:05 PM
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