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M6 II "hidden features" thread

Started Jan 17, 2022 | Discussions thread
lumenite Senior Member • Posts: 1,208
Re: M6 II "hidden features" thread
1

wddxnyr wrote:

If you have a 90D and are able to take a picture of its shutter, please let me know. I would love to compare them and see if 90D and m6 ii share the same shutter. I am still sore about not having EFCS in m6 ii.

I will update here if there is any progress.

Would you tell me why you feel sore about not having EFCS in m6mk2? As far as I know, EFCS is adopted to reduce the shutter lag of mechanical shutter. But it cuts off bokeh at high speed shutter. According to the Imaging Resource site, prefocused shutter responses are as follows:

https://www.imaging-resource.com/PRODS/canon-eos-m6-ii/canon-eos-m6-iiA6.HTM

Prefocused Shutter Response
(Time to capture, after half-pressing and holding shutter button.)

M6mk2: M, 0.052; E, 0.098 second
M50: EFCS?, 0.053 second
RP: EFCS, 0.055; E, 0.159 second
R: EFCS, 0.052; E, 0.099; M, 0.123 second
5Dmk4: M, 0.057 second

I do not know why EFCS is faster than even electronic shutter. But M6mk2's mechanical shutter looks as fast as EFCS of R/RP/M50. And interestingly it is as fast as 5Dmk4's mechanical shutter. Is it really fully mechanical shutter?

I am asking out of a pure curiosity or ignorance. What is the issue of not having EFCS? Do all other Ms have EFCS from the original M to M5 or M50 mk2?

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