Bokeh Quality Poor? (Disable Electronic First Curtain Shutter or EFCS)

[@DrRussell]

The facts in your explanation have been the most useful in ALL (100+) videos I have watched on this issue. How may I repay you for your efforts?

[@jimslens]

A really intelligent explanation of shutter mechanisms. Really appreciated.

[@connorroyce9975]

you probably dont care but if you guys are bored like me atm then you can watch pretty much all of the new series on instaflixxer. Have been streaming with my gf recently :)

[@cainrudy8316]

@Connor Royce Yea, been watching on Instaflixxer for years myself :D

[@sasca854]

Electronic shutter is the future, but there are issues with it that require better technology to resolve. EFCS was devised as a kind of stop gap until sensor design reached that point. We're _starting_ to get there, with cameras like the Z9 eschewing the mechanical shutter all together. Soon I think we'll see sensor readouts get so fast that mechanical shutters won't be put on anything except the cheapest cameras. The higher end cameras will almost certainly eventually get global shutters which eliminate all issues intrinsic with a rolling shutter (banding, the jello effect, etc).

[@jayzn1931]

I was trying to understand this and at 4:09 I finally got it! Thanks for this explanation!

[@PeterSz73]

That logic you explained at the end of the video is so simple, it should be built into every camera with EFCS function. Use EFCS when it is not degrading the picture, turn it off when it is a problem. Really besides the fast shutter speed, large aperture should be monitored as well if I understood you correctly. Above 2.8 any shutter speed would be fine right? At 2.8 1/4000 or faster is no good.

[@qilight]

Canon R5 user here. Also still have Fuji X-H1 which does have the choice of EFC until 1/2000, MS faster than 1/2000, ES faster than 1/8000 (goes to 1/32000!). If Fuji can do it, Canon and Sony should be able to do it. This would be great if Canon would implement this because MS with a SS of 1/60 to 1/160 gives a slight blur whereas ES or EFC at these speeds does not.

[@joeltunnah]

This answered my questions, thank you!🙂

[@alirezazimi]

best video about efcs

[@CharlieVN]

appreciate it, thank you

[@rushorahman]

Nice explanation, Thank you. But I think the automated system you mentioned at the end does exist in Fuji cameras. It's a nice feature to have.

[@enricomarconi8358]

thank you ! very interesting!

[@jbfilms4642]

rarely shoot at 1/8000 or even 1/2000. i used nd filters when i shoot outdoors anyway.

[@franklinpark4475]

With your demo with the dollars, wouldn't EFCS solve that, as there is no first mechanical shutter? You explained the mechanism so well and I learned something. But, I don't get how EFCS would be bad compared to mechanical.

[@CharlieVN]

4:07 is the EFCS dillema, think of the dollar on the right to be the electronic shutter (equal plane as the sensor), the one on the left is the second mechanical curtain, on a different plane above the sensor. Full mechanical shutter (and full electronic shutter) would not be possible to overlap and cast a shadow on each other since they are on the same plane and can never touch.

[@professionalpotato4764]

It's a strange... feature indeed. If shutter shake is a thing, we can just increase the shutter speed, or make it heavier with a rig/tripod right? I was so tempted to get the A7C, but the EFCS can't be turned off, which made it a dealbreaker. So this basically means the A7C can only shoot up to 1/2000 technically, if I want perfect images, which is worse performance than the basic standard of 1/4000.

[@SangsakaCreative]

or you can turn on the silent shutter

[@professionalpotato4764]

@@SangsakaCreative Rolling shutter is horrible

[@SangsakaCreative]

@@professionalpotato4764 it's safe as long as it's not fast moving object with natural light, but yes that one make me stick with a7iii

[@professionalpotato4764]

@@SangsakaCreative Yep. And that's too limiting for me. I'm not sure why Sony only installed half a shutter. If Sony had something like the Nikon Z5 it would be better.

[@MagicalMeesh]

Thank you. You read my mind. Always wondered about this. I wonder if leaving this function off means every photo counts as 2 shutter clicks.

[@CharlieVN]

They are both one count, however the amount of wear will be uneven

[@MagicalMeesh]

@@CharlieVN interesting...

[@mlzs_]

Does efcs hurt your shutter looking at the shutter limit?

[@CharlieVN]

yes it does count

[@longrider9551]

what do you think of that new Tamron 11-20?

[@CharlieVN]

It’s the only 2.8 uwa zoom for aps-c and if anything like the 17-28, then it’ll be great. If you have an aps-c body only, worth a consideration. When it comes to UWA zooms vs standard zooms, I tend to consider both acceptable as standard zooms.

[@anuraj5295]

Eny Essue for camara using for video when EFCS is off

[@CharlieVN]

No worries for video, the mechanical shutter is not used.

[@justinianovisual]

great video

[@CharlieVN]

Glad you enjoyed it