Andre,

Did you get an answer to your question. I am having the same issue with my X100. It is overexposing images. when i hold the shutter halfway down for a few seconds the viewfinder go bright and the image records as overexposed.

Bigrobb2, Yes, that sounds exactly what I am experiencing. I am taking mine back to the store and see what can be done about this. I don't know if this is a mechanical problem or if it is a software problem. Have you been able fix yours?

Well that doesn't make me happy. I guess I better let Fujifilm officially know so they can add it to the list. This a bummer since it makes me not know if the camera is going to perform when I need it to. I wonder how widespread this problem and if it is a known problem to Fujifilm. Thanks for letting me know I am not the only one with the problem.

All cameras do this. That's what the exposure compensation knob is for. No matter what the lighting conditions are, a camera will always try to expose for Zone 5.

As for over exposure, the X100 is not able to go above 1/1000th of a second if the aperture is set below f8. Use the neutral density-filter to compensate for that.

@bigrobb2 You are welcome. I will let you know what happens when I get it back. Hopefully over the weekend as I shipped it today.

@bigrobb2 Read that first paragraph of the OP again and tell me it has nothing to do with the camera over-exposing a dark scene automatically. My X100 does this too It's not broken.

Sorry to read about the sticking blades. First I've ever heard of it.

I just got my x100 and took some night shots and realized it has been overexposing as well. Can you put some pictures up?

@dole7 yes. when i get home this evening i will post a couple.

Thanks for all the viewpoints and input but Fujifilm Technical Support admitted there was an issue with the camera and are fixing it so I am going with their explanation and resolution. :)

@gtrent733 did they mention if the problem is with the hardware or the software?

@jaynamana I asked before I sent it back if this was a firmware issue (I really didn't want to send it back) but tech support said it was a hardware issue so off it went. The good thing is Fujifilm moves the X100s to the front of the line for 48 turnaround and ships overnight to get it back quickly. Looking to get mine back early next week.

I wonder how many x100s have a problem with the aperture blades sticking? My first unit had this issue and was replaced with a new one, but I'm hearing of this problem more and more as time goes on.

With mine, there was no gearing sound, just the blades clearly trying to get to where you had set them. It seems to me it is a mechanical issue, like the spring is not strong enough to do what it's supposed to do.

@gtrent733 Good to read that you got it back so quick. Sending mine off tomorrow. I am going on vacation next week, it would be a bummer not to have it.

@grent733: thx for the sample pics above, seems that mine does not have this "extrem" situation.
however @jackk it seems that we might have a similar "problem". maybe it is wrong handling, but I have not experienced this kind of washed out pics from my nikon.
I am also curious how this turns out, because in the beginning my pics were spot on, but now it seems getting worse. I will keep u posted.

@kennylovrin You have described my situation exactly, except yesterday the problem was even worse. I sent mine in today for repair. I just hope these faulty lenses aren't replaced with more faulty lenses.

@kennylovrin They should probably stop selling these cameras while they work out this issue. My serial is in the 13xxxxxx range, so that may just be a rumor

@gtrent733 congratulations on getting your x100 back! :)
Did they mention what was wrong with the hardware?
Since this is my first DSLR I am having a hard time figuring out if I have this problem or not.


Exposure 0.125 sec (1/8)
Aperture f/5.6
ISO Speed 1600
Exposure Bias 0 EV


Exposure 0.033 sec (1/30)
Aperture f/5.6
ISO Speed 1250
Exposure Bias -2 EV

I am so confused. Is it normal for DSLRs to behave this way?

I also have the aperture blade problem. I started getting overexposed pictures recently and immediately suspected this is was the problem since I had read about it from a few other owners. It was very easy to confirm by looking at the aperture blades while half-pressing the shutter button repeatedly in Av mode and seeing different apertures. For some reason, it seems to happen more at F4 than anything else but I'm not sure why. Seems like an unfortunate problem to have in so many cameras. I have yet to send mine in as I have an upcoming project that I need the X100 for (and for which I can work around the aperture problem if it doesn't get worse).

Here's another user hit by the sticky aperture blades issue.

If you get hit with this and need a short term work around, try assigning the Depth of Field preview function the the fn button; I was able to "force" the blades of my lens to move by hitting the fn button and then depressing shutter half way. If the camera was turned off I'd have to go through this step again.

This worked for a period of time until nothing would budge the blades from wide open.

Currently out for warranty repair. Sigh.

I got mine back as well this week. I don't know in detail what they did, but it came with a service card which had "Checked" checked for every single thing on the camera and also "Adjusted" checked for aperture and shutter. If that means they actually adjusted or exchanged something in the lens I don't know.

I haven't had time to really test the camera since I got it back, but it seems to work without any issues in my brief tests.

Word of advice: include photos (in the camera's internal memory, for example) documenting your problem when sending it in for repair. Even though I enclosed a letter explaining the problem in detail and the person on the phone seemed to be aware of this issue, I just received my X100 back from Fuji NJ and nothing was fixed. The repair ticket said everything was checked and found to be within factory specs. Yet, the first shot I took after taking the X100 out of the box was overexposed (as were all others thereafter at apertures smaller than f2). I am sending it back tomorrow with 2 pictures saved to the internal memory taken within seconds of each other with equivalent exposure settings but showing significantly different histograms. Let's hope this does it and the camera actually gets fixed this time. I'm more annoyed at having gotten back the camera without it being fixed than when I discovered the problem in the first place, to be honest. It just seems like adding insult to injury. /venting

My camera was shipped across Canada on a Monday, received at Fujifilm Canada's dock on Tuesday, repaired over Wed-Thursday, shipped back to me on Thursday, arrived back in Vancouver on Friday.

Service documentation said the lens assembly was replaced.

Prior to sending it in I sent via email a series of shots with EXIF data backing up the observation that the aperture was not closing properly.

PLEASE NOTE: In my case the problem was intermittent at first and grew progressively worse over time. As an example, by assigning the Depth of Field Preview function to the Fn button, I was initially able to force the blades to move. As more exposures were added on to the camera, that trick stopped working. Early on when I first thought I noted something wrong I wasn't looking for a physical blade issue and thought my X100 had a software problem. As the problem presented itself on a more regular basis, I quickly figured out that it was the aperture blades simply by looking at them while trying different aperture settings.

However I did note at that time that sometimes the blades would close, or almost close, to the proper opening. Again, the failure wasn't always 100% or regular, until the camera had more exposures. By 2500 exposures or so (I was on a multi-week trip) it was happening all the time.

If you think you have the problem but it seems intermittent, you may just be X exposures away from having a full time issue. Take the documentary photos to prove the issue and don't wait to get it repaired... much nicer now that it's fixed!

@v_roma Well that's good news, I hope they fix her up. I went through separation anxiety after I sent mine off.

There are two seemingly similar, yet actually unrelated "overexposre" problems being discussed in this thread. Hopefully, the following info will prove helpful for both.

First: "Help! My X100 is overexposing nighttime/dark scenes."

Answer: Your X100 is NOT broken or malfunctioning. Its metering system is operating as it should. My Nikon D3s does exactly the same thing. Why? In simple terms, camera metering systems see the world as "gray" and set an exposure to render it that way. So very dark or night scenes will appear overexposed. (And very bright/white scenes, like snow, can appear underexposed.) In the case of cameras like the D3s and X100, which have highly light sensitive sensors, an evening/night scene shot with automatic metering can almost appear to be a well-exposed daylight photo. You must use exposure compensation to override the automatic metering. It's easy on the X100: just view the scene on the LCD, and dial in "minus" exposure compensation until the lighting in the actual scene and what's on the LCD seem to match. Take your photo and if it's still not quite right, adjust the exposure compensation again, either plus or minus. It may take a few tries before you're satisfied with the results. This is all perfectly normal.

Second: "Help! My X100 is overexposing many/most of my photos."

Answer: Your camera may have sticking aperture blades which require repair by Fuji. Here's an easy test to see if they're sticking. First, set your X100 to manual exposure. Then set the shutter dial to A, and the aperture dial to f16. Look into the lens and partially depress the shutter until the shutter blades close, but before a picture is taken. Do this repeatedly, perhaps a dozen or more times. In each case, the shutter leaves should quickly close down to exactly the same small-sized hole, no sluggishness or sticking, then pop open again as soon as you release the shutter button. Now work your way up the aperture dial, doing the same procedure for every f-stop. If you see sluggish or sticking aperture blades at any point during these tests, then make note of the f-stop where the problem occurred and contact Fuji for repair. If you don't see any problems, then I'd assume there isn't a mechanical issue with your camera.