Fuji Electronic shutter v mechanical shutter

Stevenz

New Member
I posted a question on the other Fuji forum I use about why my EX-20 flash wasn’t firing and learned (not mentioned in either the X Pro 2 or flash manual) that one must use the mechanical shutter. Don’t know why, but OK. One reply went on at great length on why to never use the electronic shutter except when silence is needed. I don’t believe that Fuji would put it in there for only that reason. May I ask for some thoughts on the electronic versus mechanical shutter decision? Thank you.
 
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Avoid using the electronic shutter. The disadvantages far outweigh the advantages, in particular rolling shutter effect.
 
I use the electronic shutter all of the time. It is situational dependent. When I was shooting on film sets, the electronic shutter was invaluable.

There are times which the electronic shutter should not be used. Shooting moving subjects, such as the example Bill posted. Also in fluorescent lighting, and some incandescent bulbs, you will get lines in your photos. And as you found out, the electronic shutter will not work with flash. There are also shutter speed limits on the slow end for the electronic shutter.
 
There you go. Two views. Bobby and I tend to shoot different subjects; if I want silence I use an X100F, and I hate to faff with having to adjust my shutter for different lighting.

You choice - and you have one - should be based on your own pattern of usage.
 
Yesterday I had a first hand demonstration of the rolling shutter effect. I was taking a photo with my iPhone out the window of an aircraft- I was sitting right next to the prop - and I could see the effect in real time on the phone. It’s very strange.

OK, I think I get the message. I probably shoot more moving objects than I had thought so it sounds like the MS is it for me. Furthermore, I use the 56 1.2 and don’t have the steadiest hand so that’s strike two for the ES. Then there’s the flash bit and that would be strike three.

Thanks for the good information.

Steve
 
Bobby said it well - he and I shoot similarly. When you need silence (and your subjects are still), or when you want to shoot a fast lens wide open in daylight (and your subjects aren't going around a racetrack), the electronic shutter pays for itself tenfold. Otherwise, the mechanical shutter wins.
 
Can someone tell me what the advantage of the electric shutter is please - I have TRIED reading the manual, but to be honest, I don't understand. What is this 'rolling shutter' phenomenon?
When and why would you use the electric shutter - someone said wide open in bright sun, but why the electric shutter rather than the mechanical shutter? I am probably being thisck, but that comes of not really understanding all the ins and outs of digital photography - i am still in film mode, but with a digital camera. If that makes sense. I am only just starting to trust that I can use above 400 ASA with decent results.
 
The electronic shutter can go to 1/32000. So wide open in bright sunlight, you can shoot without ND filters. The ES is completely silent, so on a movie set one can shoot without buying a blimp or any other sound deadening device. Or in any other situation where silence is required. Using the electronic shutter will also save wear on the mechanical shutter, prolonging the life of the camera. You can use it in a variety of situations.

Shooting moving subjects, or in fluorescent lights is where you will find the issues with the rolling shutter. Moving subjects will be warped. Fluorescent lights cause banding lines.
 
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I hadn’t heard of rolling shutter either until I posted the question. It was only a couple days later that I saw an actual demonstration of it. I’m posting a photo I took from a turboprop with my iPhone. It was an attempt to get al pic of Mt Taranaki in New Zealand. You will notice on of the props looks radically bent. The cool thing was that I could see the effect in real time on the phone. For some reason unknown to me the camera slows down the motion of the prop so you can see prop as it rotates. I assume the phone has an electronic shutter. This doesn’t answer your question but it shows a real live demonstration of rolling shutter.
 
Thanks for both of those replies.
So, BobbyT, should I be using the electric shutter for general photography of more or less static subjects? Such as landscape type scenes?
 
If you don't need a shutter speed slower than 1 sec for long exposures, then it would be fine. Try it and see if you like it. I forgot to mention that the electronic shutter is limited on the slow end of shutter speeds where the mechanical shutter is limited on the fast end. Also, the electronic shutter will not work with flash or flash triggers.
 
I'll see if I can cobble together an explanation of the functional differences that makes sense. An analogy -- Imagine a classroom full of students, with their desks arranged in the usual grid of rows, if I may...

Mechanical Shutter: The shutter (blinds covering the large window in the front of the classroom) opens, and the students are exposed to light. Each student scribbles down on a little notepad what he or she sees in their little corner of the window (top left student draws the top left area of the window, etc) until the shutter closes -- if the blinds were open too long, it's mostly blown out white. If it wasn't long enough, it's dark. But ALL the students were looking at the same time, for the same amount of time. The camera's processor (the teacher) then goes around collecting the notepads, and assembles the data they drew of the different areas outside into a single big photo. Film works this way, except there's no need for a teacher, the little notepads are all side-by-side and they physically make the negative. If the subject moved too much while the blinds were open, they notepads will show a blurry subject. Good? Good.

Electronic Shutter: There is no set of blinds on the window, it's just open. Each student has one of the eye masks on that you wear to try to get 4 hours of shitty sleep on a plane, so they can't see anything yet. But the window is wide open, they just can't see it. The exposure is going to be set for, let's say, 1/100 of a second, and there are (let's say) 100 students total in this classroom desk grid. They're going to look sequentially this time, not all at the same time, so that means each student gets to see out the window for 1/10,000 of a second... one hundred of those little increments will add back up to 1/100 of a second. Now, sequentially, the teacher walks around to each student, starting at the top left corner, working across each row and then back around to the left edge of the next row, on down and down to the bottom right corner, like eating an ear of corn, or like the old cathode ray tube tvs worked. Like typing a letter.... top left to bottom right, in rows. She removes the eye mask from the first student, top left corner. He/she's got 1/10,000 of a second to peek (they're fast at drawing, don't worry) and scribble on their pads what they saw in their little part of the window. Eye mask back down, then it's the next student's turn, etc etc. The teacher walks down each row, one at a time, letting each student peek out the window and draw it. The very last student, whose time slot is the last 1/10,000th of the total 1/100th of a second, draws what they saw, and that's it, the exposure is over. The teacher cobbles their drawings and that's your jpg.

Now, imagine that what's out the classroom window is a race car going by at ~180mph, from the left to the right.

Mechanical Shutter Class: Blinds go up, students ALL begin scribbling down what happens during 1/100th of a second ("that's way too slow to stop a race car's motion, what are you thinking?" I know...). When the teacher assembles all their drawing back into one big picture, it's a laterally blurry race car going past. The background is crisp, the car is evenly blurry across the range of where it was when the blinds first opened, to where it was when the blinds closed.

Electronic Shutter Class: First student's eye mask is lifted. Car is at the left edge of the window, so that student's little drawing of that corner shows the nose of the car just entering the scene, and it's crisp, not blurry, because this time the student only had 1/10,000th of a second to scribble. Next student's eye mask goes up, they begin to draw, but the car has moved ever so slightly to the right... 1/10,000th of a second has passed! Now keep going down the row of students til you get to the end. Next row, student's eye mask comes up and they draw. It's been ten time slots since the car started entering the frame, so now the car is even farther to the right. It's been one tenth of the total time! So the students drawing the next lowest row, their little slice of the car will be drawn farther to the right than the students in the row above them. Third row is even worse. Fourth row, worse. By the time you get to the tenth row, the car is now WAY farther to the right. But each student's drawing of their slice is crisp and stopped. The result is like those pics Bill posted here of race cars tilted at crazy angles... instead of a blurry car moving across the image, you have a crisp car tilted at an impossible angle.
 
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