Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Here's a sample image. Yes, I know I have dirt on the sensor, too, but this ring clearly is a different issue than sensor dust/debris.

psudgc17 wrote:Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Here's a sample image. Yes, I know I have dirt on the sensor, too, but this ring clearly is a different issue than sensor dust/debris.That image displays the same symptom as in the linked thread.  You have a problem with one of your shutter blades

Agree with previous poster. Shutter damage.

It's probably a damaged or missing shutter blade rivet.

psudgc17 wrote:Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Go back to your second link.  type in your serial number.  If it shows up as part of the "Service Advisory" (NOT a recall) then your shutter will be replaced by Nikon free of charge.  They will also throw in a lifetime P&L warranty on that specific work for as long as YOU own the camera.If your serial number does not show up, call them.

historianx wrote:psudgc17 wrote:Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Go back to your second link. type in your serial number. If it shows up as part of the "Service Advisory" (NOT a recall) then your shutter will be replaced by Nikon free of charge. They will also throw in a lifetime P&L warranty on that specific work for as long as YOU own the camera.You're right that it's worth checking, because a free shutter replacement could be offered, but note that this isn't the same problem that the service advisory was designed to fix.

briantilley wrote:historianx wrote:psudgc17 wrote:Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Go back to your second link. type in your serial number. If it shows up as part of the "Service Advisory" (NOT a recall) then your shutter will be replaced by Nikon free of charge. They will also throw in a lifetime P&L warranty on that specific work for as long as YOU own the camera.You're right that it's worth checking, because a free shutter replacement could be offered, but note that this isn't the same problem that the service advisory was designed to fix.You're missing the point.  If the OPs camera's serial number comes up, it gets replaced no matter the problem.  If not, then OP needs to contact Nikon as to the next step.

historianx wrote:briantilley wrote:historianx wrote:psudgc17 wrote:Hi DPReview --I haven't posted in a while, but I'm an admitted lurker. Loads of good info this week--including some that is helping me with a recent issue. This past week, I started having an problem with my D750 that I wasn't able to solve with changing lenses/filters/lens hoods.I found this thread with similar symptoms:https://www.dpreview.com/forums/thread/4133134I also recall that certain D750s suffer from the "glare" recall, and there's an outstanding notice for this. Is this a similar/related issue? I have not sent my body in for that fix yet. Would sending in the body for this fix also fix this issue? I'm wondering if they're related.https://www.nikonusa.com/en/service-and-support/service-advisories/technical-service-advisory-for-users-of-the-nikon-d750.htmlThanks in advance!Go back to your second link. type in your serial number. If it shows up as part of the "Service Advisory" (NOT a recall) then your shutter will be replaced by Nikon free of charge. They will also throw in a lifetime P&L warranty on that specific work for as long as YOU own the camera.You're right that it's worth checking, because a free shutter replacement could be offered, but note that this isn't the same problem that the service advisory was designed to fix.You're missing the point. If the OPs camera's serial number comes up, it gets replaced no matter the problem.Maybe, maybe not?My point is that we don't know what has caused the obvious shutter damage. It could be a maufacturing fault, or it could be something else. Knowing Nikon, they COULD choose not to honour the free replacement offer (or perhaps they might impose a partial charge) if their technicians decide that the damage was caused by the user, for example by careless sensor cleaning.I'm not saying that it was, simply that we cannot be sure the camera would get a free replacement, even if its serial is within the serial number range of those affected by the "flare shading" problem that the advisory covers.Either way, it's worth exploring the possibility.If not, then OP needs to contact Nikon as to the next step.Agreed.

briantilley wrote:My point is that we don't know what has caused the obvious shutter damage. It could be a maufacturing fault, or it could be something else. Knowing Nikon, they COULD choose not to honour the free replacement offer (or perhaps they might impose a partial charge) if their technicians decide that the damage was caused by the user, for example by careless sensor cleaning.I'm not saying that it was, simply that we cannot be sure the camera would get a free replacement, even if its serial is within the serial number range of those affected by the "flare shading" problem that the advisory covers.Either way, it's worth exploring the possibility.I had an identical issue with my D750, in addition to unusual amount of dirt on the sensor (more like oil splatter), 'Err' problems, and it was on the service advisory list of serial numbers.My camera was fixed under warranty (it had sensor, shutter, and circuit board replacements) and has ever since worked flawlessly.If I remember correctly, this specific halo issue was attributed to shutter failure.

Thank you to all for your insights! When I put my serial number in at the link, I receive the message, "Your camera is affected." Sounds like this will be the route I take. As others have said above--reason or not for the halo affect--this is a two-birds one stone kinda thing.Something else to note with this issue: not all the photos were affected. It appeared that wider-open apertures and shorter-distance focusing did not affect the image. Just logging this for other users who stumble on this thread and are similarly affected.Example 1-- Focal plane much closer and f/2.8Example 2-- Focal plane closer and f/1.4

psudgc17 wrote:Thank you to all for your insights! When I put my serial number in at the link, I receive the message, "Your camera is affected." Sounds like this will be the route I take. As others have said above--reason or not for the halo affect--this is a two-birds one stone kinda thing.Something else to note with this issue: not all the photos were affected. It appeared that wider-open apertures and shorter-distance focusing did not affect the image. Just logging this for other users who stumble on this thread and are similarly affected.Example 1-- Focal plane much closer and f/2.8Example 2-- Focal plane closer and f/1.4From what I can remember, it also made a difference if you shoot brighter scenes, much like what you did here. The halo was much more visible in images  with a darker background.BTW, image #1 is quite a nice one!Good luck with your repairs, I hope it is swift and efficient. A fully operational D750 is a really good camera and a pleasure to use.Let us know !

psudgc17 wrote:Thank you to all for your insights! When I put my serial number in at the link, I receive the message, "Your camera is affected." Sounds like this will be the route I take. As others have said above--reason or not for the halo affect--this is a two-birds one stone kinda thing.Let us know how you get onSomething else to note with this issue: not all the photos were affected. It appeared that wider-open apertures and shorter-distance focusing did not affect the image. Just logging this for other users who stumble on this thread and are similarly affected.I suspect the strength of the effect is dependent on shutter speed, not directly on aperture - and almost certainly not on focus distance.

If the rivet is missing and has a hole, then it acts as a pinhole, or the opposite of a dust spot near the sensor. Like dust on the sensor, focusing at infinity and stopping down, will make it more apparent, at least to my logic...Hope it gets sorted timely. All the best.

Just wanted to post an update for those who face similar issues and a timeline of my progression.Have to say, after all the negative press I've read on the internet about Nikon's service, I was 100% satisfied. Only a small UPS hiccup kept me up at night. I would recommend anyone experiencing "odd" shutter issues to check their serial number for service. You might get a two-birds-one-stone solution here.Now time for more shooting!

Excellent!Now go shoot and post some pics

psudgc17 wrote:4 days "door to door" is a good turnaround time.