Nikon D750 Live View - Mirror UP

[Gary Garnett]

My dealer told me when I am using Live View, the mirror comes down and goes back up when I take the photo direct from live view. To lessen the chance of camera movement when using a tripod and a long lens, he said I should switch to "mirror up" setting before taking the photo.

I also saw a video where the instructor said just the opposite, indicating that the mirror stays up when using live until after the photo is taken. I have tried to look into the camera and see for myself, but everything happens so fast I'm not sure.

Thanks for any help

Gary

 

[Signing out]

Hi Gary

The mirror flips up when you engage liveview and stays up until you turn it off.

Mirror up can be used in situations when you use view finder. the mirror flips up before you press the shutter button that will open curtain and expose image sensor.

 

[Gary Garnett]

I'm still not clear. If I have the camera on a tripod, and turn on "live view", I understand that the mirror moves up out of the way, and the shutter opens.

But if I take a photo directly from live view, the dealer told me the mirror drops back down when the shutter closes, and then goes up again just before the shutter opens. The dealers concern was that there might be some vibration or "mirror slap" from the mirror moving back down to the original position, and up again while the photo is taken. The dealer suggested there would be less chance of camera movement from the mirror, if the camera were switched off live view and onto the mirror up setting before taking the photo.

I also watched a video where the instructor said once you have live view on, the mirror stays up until after the photo is taken, so it's the same as using the "mirror up" setting.

Any additional information would be appreciated

Regards,

Gary

 

[LMCasey]

The mirror stays up the entire time while in LV. When you are in LV you don't need to mess with MUP.

 

[helltormentor]

The mirror stays up the entire time while in LV. When you are in LV you don't need to mess with MUP.

It seems that you have confused your experience with Canon gears with that of Nikon cameras. Mirror stays up in Canon cameras but as the OP has said, this is not the case in Nikon cameras. There is a video that shows a comparison between the 7D and D7000 and he says the same thing :

It is a 3 part video, I do not remember in which part this is mentioned.

My question is how Mirrol Up mode works in the live view?

 

[DaveTheAffable]

Well... have you ever heard the saying, "It's hard to argue with a guy who has an experience?" I've been playing with my D750 this morning, and want to share my experience.

I tried taking a single frame, non live view with a 1 second exposure. I hear "Mirror up/Shutter open" sound, followed 1 second later by "Shutter close/Mirror down" sound. It does the same thing in continuous shooting. Loud click 1/2 second after last exposure.

In Live view, 1 second exposure, I hear a THIRD, significant, actuation of SOMETHING. If that's not the Mirror going back up, what is it? It's the same "sound" I hear when I first push the Live View button. Could the mirror be cycling "Back into Live View"?

Soooo... I tried it in Mup mode/Live View. Guess what? FOUR sounds. Maybe Shutter open, Shutter close, Mirror down, Mirror up.... to return it to live view mode. No big, because the mirror slap occurs after the exposure has completed.

This would satisfy the explanations given that the mirror is up during live view (but doesn't STAY up).

Maybe in Mup mode/Live View, the exposure is taken without the mirror going up, because it's already up. But at the end of exposure the mirror drops closed, recognizes it's supposed to be in live view, and then re-opens. That would mean the mirror isn't going up and down at the START of the exposure, but IS cycling at the END of the exposure.

I believe the dealer who said the mirror "cycles" may have been correct.

Try it? Thoughts?

---

Dave

 

[DaveTheAffable]

The mirror stays up the entire time while in LV. When you are in LV you don't need to mess with MUP.

Agreed! But it's nice that the D750 has a delayed exposure setting so that you can eliminate camera wiggle if you don't have a remote shutter cable/wireless.

 

[ralfwolf]

Mirror does not go down. The noise you hear right after you press the release is the first shutter closing. I'm sure they put a short delay before firing the second shutter to prevent/reduce shake due to the first shutter closing. In vf mode the first shutter is closed already. Just take the lens off and take a shot in lv to see for yourself.
I suspect that people are assuming it's the mirror because of the sound but never bothered to actually check for themselves.

 

[BarnesPhotoInVT]

I was going to say, if you are indoors in a controlled area, you could always remove your lens, and take a shot with the front of the camera open so that you can actually see what happens. If you aren't willing to risk potentially getting all that dust on your sensor however, I get it

That said, my ear test tells me (aka, I can hear it), that the nikon rep is correct and the mirror slaps down and back up again when shooting in live view.

 

[DaveTheAffable]

Well... have you ever heard the saying, "It's hard to argue with a guy who has an experience?" I've been playing with my D750 this morning, and want to share my experience.

I tried taking a single frame, non live view with a 1 second exposure. I hear "Mirror up/Shutter open" sound, followed 1 second later by "Shutter close/Mirror down" sound. It does the same thing in continuous shooting. Loud click 1/2 second after last exposure.

In Live view, 1 second exposure, I hear a THIRD, significant, actuation of SOMETHING. If that's not the Mirror going back up, what is it? It's the same "sound" I hear when I first push the Live View button. Could the mirror be cycling "Back into Live View"?

Soooo... I tried it in Mup mode/Live View. Guess what? FOUR sounds. Maybe Shutter open, Shutter close, Mirror down, Mirror up.... to return it to live view mode. No big, because the mirror slap occurs after the exposure has completed.

This would satisfy the explanations given that the mirror is up during live view (but doesn't STAY up).

Maybe in Mup mode/Live View, the exposure is taken without the mirror going up, because it's already up. But at the end of exposure the mirror drops closed, recognizes it's supposed to be in live view, and then re-opens. That would mean the mirror isn't going up and down at the START of the exposure, but IS cycling at the END of the exposure.

I believe the dealer who said the mirror "cycles" may have been correct.

Try it? Thoughts?

---

Dave

Corrected my mistake, but was past 15 minute edit window. That third sound only occurs in Live View.

 

[DaveTheAffable]

Mirror does not go down. The noise you hear right after you press the release is the first shutter closing. I'm sure they put a short delay before firing the second shutter to prevent/reduce shake due to the first shutter closing. In vf mode the first shutter is closed already. Just take the lens off and take a shot in lv to see for yourself.
I suspect that people are assuming it's the mirror because of the sound but never bothered to actually check for themselves.

You are ABSOLUTELY right. I didn't think I'd be able to see the mirror actuation, but it is CLEAR that it never goes down...at all.

I could have just taken the lens off and looked.

With apology for over thinking it..... DOH!

 

[DaveTheAffable]

I took lens off...and it definitely stays up.

 

[BarnesPhotoInVT]

Cool, good to know. I shoot in live view less than 1% of the time, so I hadn't taken too much time to understand the quirks. But this is solid information to keep in the back of my head. Especially for astrophotography since I'm using live view to focus anyway

 

[DaveTheAffable]

Cool, good to know. I shoot in live view less than 1% of the time, so I hadn't taken too much time to understand the quirks. But this is solid information to keep in the back of my head. Especially for astrophotography since I'm using live view to focus anyway

--
Doug Barnes
http://www.barnes.photography

Yes Doug. I have used live view, and the delayed exposure feature, to take some nighttime cityscape shots with good results, because I've been dragging my feet buying a remote.

Proves I'm goofy. Spend thousands on camera and lenses... too cheap to buy $15 remote..LOL.

--
Dave

 

[helltormentor]

Mirror does not go down. The noise you hear right after you press the release is the first shutter closing. I'm sure they put a short delay before firing the second shutter to prevent/reduce shake due to the first shutter closing. In vf mode the first shutter is closed already. Just take the lens off and take a shot in lv to see for yourself.
I suspect that people are assuming it's the mirror because of the sound but never bothered to actually check for themselves.

People haven't become delusional. Back to the D700 era, this was how Nikon implemented Live View since one single driving mechanism controlled both the shutter and mirror. In the newer models, Nikon claimed that the mirror is totally independent from the shutter so nobody expects to see the same issue in new cameras.

 

[helltormentor]

Mirror does not go down. The noise you hear right after you press the release is the first shutter closing. I'm sure they put a short delay before firing the second shutter to prevent/reduce shake due to the first shutter closing. In vf mode the first shutter is closed already. Just take the lens off and take a shot in lv to see for yourself.
I suspect that people are assuming it's the mirror because of the sound but never bothered to actually check for themselves.

You are ABSOLUTELY right. I didn't think I'd be able to see the mirror actuation, but it is CLEAR that it never goes down...at all.

I could have just taken the lens off and looked.

With apology for over thinking it..... DOH!

 

[ralfwolf]

Not suggesting anybody is delusional but just funny when dealers who have at least a couple of open demos that they can check don't bother checking for themselves and end up giving people the wrong information. The sound of the front shutter is quite loud and very similar to the mirror flap. When I first got it I also wondered if the mirror stayed up so I checked for myself. I believe all modern Canon bodies have EFCS and use it for LV. Thus, there is just the single relatively quite sound of the second shutter during LV release. I think that's why people assume that the first sound is the mirror when comparing it to a Canon.

IMHO, EFCS is one thing that Nikon should add to D750 in firmware if possible. I understand that they want to differentiate the D750 from their pro bodies but honestly, most pros are choosing the D810 for handling and magnesium allow body. What Nikon has done is given competitors a feature edge in similarly priced bodies.

 

[Sam Webb]

Cool, good to know. I shoot in live view less than 1% of the time, so I hadn't taken too much time to understand the quirks. But this is solid information to keep in the back of my head. Especially for astrophotography since I'm using live view to focus anyway

--
Doug Barnes
http://www.barnes.photography

Yes Doug. I have used live view, and the delayed exposure feature, to take some nighttime cityscape shots with good results, because I've been dragging my feet buying a remote.

Proves I'm goofy. Spend thousands on camera and lenses... too cheap to buy $15 remote..LOL.

--
Dave

There is an android app "Camera Remote" that works just like a physical camera remote, if you have InfraRed on your phone (e.g. Galaxy S5) I use it all the time with D5300, D5100 and D750! also another tip is to use the Timer, set it to 2 seconds, press the shutter and leave the camera to take the photo.

Cheers