What am I doing that is causing this? Or is it just the nature of the beast?

cwgrizz

Senior Member
Challenge Team
With the D750 and the 24-120 lens w/lens hood, I seem to be getting some vignetting or darkening on the corners of some of my shots. It seems to be happening more than with my other stuff. I am new to the lens and the FF camera, so maybe it is just the nature of it that I need to get used to. What do you think?

Three shots that illustrate what I am talking about. Notice the top corners of the shots. As you see some is worse than others.

6-12-17-cr-TEST__7501075.jpg



6-12-17-cr-TEST__7501076.jpg



6-12-17-cr-TEST__7501077.jpg
 

jay_dean

Senior Member
It might sound a bit simplistic, but was the lens hood clicked securely? I know when i had my 24-120mm if it wasn't secure it could cause this
 

Blacktop

Senior Member
With the D750 and the 24-120 lens w/lens hood, I seem to be getting some vignetting or darkening on the corners of some of my shots. It seems to be happening more than with my other stuff. I am new to the lens and the FF camera, so maybe it is just the nature of it that I need to get used to. What do you think?

Three shots that illustrate what I am talking about. Notice the top corners of the shots. As you see some is worse than others.

View attachment 257932


View attachment 257933


View attachment 257934

Hmmmm. Looks like your bottom shot is the worst of the bunch. I get it once in a while on my D750 but not as bad as your bottom shot. You can fix it easy in LR, but you want to know what's causing it.
 

Blacktop

Senior Member
Just thought of something. Do you have the tulip hood on your 24-120 oriented the correct way? Are the longer parts oriented vertically?
 

Blacktop

Senior Member
Here is something else I found.

https://photographylife.com/reviews/nikon-24-120mm-f4g-vr/

Vignetting seems to be worst at 24mm when shot wide open, but as you can see, it is quite evident at all focal lengths. At 35mm, it gets a little better, but the problem returns at longer focal lengths. Another thing you have to be careful with, is using filters when shooting at 24mm, just like on the Nikon 24-70mm. Take a look at what happens when I used a polarizing filter on the 24-120mm:

As you can see, the corners are even darker with a polarizing filter attached, so just be a little careful when shooting at the shortest focal lengths with thick filters attached (using a regular clear filter did not seem to make a difference). Please note that the Nikon 24-70mm also has a similar problem when using thick filters – if you want to shoot at the widest focal length with a polarizing filter, my advice is to use slim versions of polarizing filters. This problem is gone once you zoom in a little. At 28mm and beyond, I could not see much additional vignetting when using a rather thick filter.
 

cwgrizz

Senior Member
Challenge Team
It might sound a bit simplistic, but was the lens hood clicked securely? I know when i had my 24-120mm if it wasn't secure it could cause this
Thanks, I thought of the hood as being part of the problem, but yes the hood was fastened securely. It is one of the few hoods I own that does positively snap when it is in place.

Just thought of something. Do you have the tulip hood on your 24-120 oriented the correct way? Are the longer parts oriented vertically?

Yes, the hood was oriented in the correct way with the lettering of it on top and long petals in a vertical position (Top and Bottom).


As to the last picture being much worse than the others, I am figuring that it might be because it was shot at f4 and the first two were shot at f11.

I do have a UV filter on the lens, but I think I may have seen the same thing without it. I will have to look back at previous shots to be sure though.
 

hark

Administrator
Staff member
Super Mod
Contributor
Are you enabling the lens correction option in either PCC or LR? My 18-35mm lens did that until I started using lens correction. Once I clicked the box, the vignetting disappears.
 

cwgrizz

Senior Member
Challenge Team
[MENTION=6277]Don Kuykendall[/MENTION]
Yes, I'm sure it is the right hood. At least it is the one that came with the lens. I keep all of my hoods with the lens they came with. Reverse them on the lens when not in use.
@hark
Cindy, I don't use LR or CC. I use Capture NX-D and PS Elements. It can be corrected in PP, I'm sure. It is just one of those things that I have seen the same effect more often with this lens and camera combo. Actually I think it is more the lens causing the problem. It seems to happen mostly in bright sunny sky shots.
 

Horoscope Fish

Senior Member
With the D750 and the 24-120 lens w/lens hood, I seem to be getting some vignetting or darkening on the corners of some of my shots.
That's an unusual amount of vignetting for any lens, in my opinion. I also notice the vignetting increases as the focal-length increases. That comes as no surprise but it pretty much confirms for me it's the lens causing it. I'd try shooting the lens absolutely naked (no filter, no hood) and see how the shots turn out. If the vignetting continues unabated I would consider having the lens evaluated by Nikon or another professional. I just don't think that's right.
...
 

cwgrizz

Senior Member
Challenge Team
That's an unusual amount of vignetting for any lens, in my opinion. I also notice the vignetting increases as the focal-length increases. That comes as no surprise but it pretty much confirms for me it's the lens causing it. I'd try shooting the lens absolutely naked (no filter, no hood) and see how the shots turn out. If the vignetting continues unabated I would consider having the lens evaluated by Nikon or another professional. I just don't think that's right.
...

Thanks Paul, As soon as I get some time and the conditions are right, I will set the camera up on a tripod and play with all of the options ie filter, no filter, hood, no hood and other combinations to see what and where things are going wrong. Also I will play with aperture settings and focal lengths to see how much and where they affect it.
 

hark

Administrator
Staff member
Super Mod
Contributor
That's an unusual amount of vignetting for any lens, in my opinion. I also notice the vignetting increases as the focal-length increases. That comes as no surprise but it pretty much confirms for me it's the lens causing it. I'd try shooting the lens absolutely naked (no filter, no hood) and see how the shots turn out. If the vignetting continues unabated I would consider having the lens evaluated by Nikon or another professional. I just don't think that's right.
...

I'm surprised only because I find it happens more with wide angle than telephoto...18mm on FX is a wider view than 18mm on DX. But I don't own the lens Walt is using.

I will second Paul's suggestion to remove the filter. Generally I buy thinner profile filters now because some of the thicker ones can cause vignetting (thinner profile filters aren't as deep from front to back).
 

RocketCowboy

Senior Member
It's definitely the filter on your lens. When I stopped using a UV or CPL on that lens, the vignetting went away unless I add it back in LR. Zoomed out to 24mm, I think the filter threads are just too close to the field of view.


Sent from my iPhone using Tapatalk
 

spb_stan

Senior Member
Yes, perfectly normal for wide angle stopped down with a filter to have this much or more corner shading. Stopping down to f/11 for the last one would have lessened the corner darkening. Most people do not notice it too much on wide angle because landscapes are normally shot for optimum DOF by stopping down at least the f/11. Take off the filter to see what the lens itself can do, much better no doubt. That is a disadvantage of screw-on filters. Sheet filters in a frame don't have the same problem but are expensive and less portable.
 
Top