Recent launches and future of the X-Pro series

ViMa wrote:

Truman Prevatt wrote:

ViMa wrote:

Jeff Biscuits wrote:

ViMa wrote:

Losing e-shutter with the 40mp sensor is a big hit for street photographers, the main focus of the X-Pro series.

I thought the X-T5 still had ES?

Yes but apparently it suffers from horrible rolling shutter due to the 40mp.

Unless you are panning with the camera or there is significant motion - the rolling shutter won't be an issue.

I shoot at 1/1000s while walking towards a person who's usually walking towards me. Sometimes it's a split second and more often than not i mjss the framing I'm going for despite being prefocussed and not losing time autofocussing.

Do you think that would have rolling shutter? If not, that's most amazing for me.

At ss 1/1000 - the mechanical shutter cannot open and close that fast. So the shutter is a slit and the slit moves down the sensor. The width of the slit is determined by the exposure which means every line in the sensor will receive 1/1000 exposure time. However, the lines at the top of the sensor will not be exposed at the same time as those at the bottom. That is by definition "rolling shutter." However, what you describe is most likely not from rolling shutter but the delay from the time you press the shutter button to the time the shutter actually activates. While you don't AF - there is still a lag.

In older film cameras in the case you describe - the shutter button is mechanically linked to the shutter release mechanism so the lag is extremely small. In modern digital cameras - especially mirrorless - when you press the shutter button you are sending a message to the camera processor and there is a series of steps necessary before the image is capture. AF is of course one but not the only process. What happens is something like:

• Auto-focus – time used for getting a focus.
• Aperture – time used for the camera to calculate/set aperture size.
• Meter lag – time used for establishing an exposure from light reading.
• Data transport and buffer storage – time taken to save the photo. After the data is taken from the sensor it is transferred to a buffer where it is temporarily stored. This action clears the sensor and makes it ready for the next exposure. It is at this point the exposure is complete. Processing lag is not a component of shutter lag for a single shot. But, if the shutter button is held down the processing lag may hold up the next exposure.

Eliminating AF only eliminates one of the steps.

Of course there are certain types of scenes where one will notice rolling shutter. Hell there are certain types of scenes where one can notice rolling shutter with a mechanical shutter. At shutter speeds above the flash sync speed, the mechanical is a rolling slit over the sensor as part of the sensor is only exposed.

https://en.wikipedia.org/wiki/Rolling_shutter

The flash sync on the XH2 (and I presume the XT5) is about 1/250. so at 1/1000 only a slit of the sensor is exposed at a time as the slit rolls down the sensor.

https://www.dpreview.com/forums/thread/4558558

You might also Google "baseball bats and rolling shutter."