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Bizarre Artifacts
Dec 30, 2015 09:15:42 #
gorgehiker
Loc: Lexington, Ky
Thanks for addressing the wavy border artifact. Do you know if this is a camera malfunction or simply a fluke problem based on that particular shooting situation?
Dec 30, 2015 10:33:12 #
paulrph1
Loc: Washington, Utah
Lens flare is to be expected in some photographs but why live with or invite more than is needed? Enough is enough, I always say. That is why I had mine fixed. Actually they fixed two recall problems lens flare and another problem so give Nikonusa a call at 1800Nikonusa. You should be covered as long as you did not buy grey.
Dec 30, 2015 10:38:38 #
gorgehiker wrote:
Thanks for addressing the wavy border artifact. Do you know if this is a camera malfunction or simply a fluke problem based on that particular shooting situation?
Enter the serial number and see if it's one that Nikon will repair.
http://www.nikonusa.com/en/service-and-support/service-advisories/i4xzkqns/Technical-Service-Advisory-for-Users-of-the-Nikon-D750.html
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Dec 30, 2015 13:14:57 #
gorgehiker
Loc: Lexington, Ky
Thanks for all the responses. I bought it just a few months ago at the local camera store.
Dec 30, 2015 15:25:43 #
In this digest issue there is a post about getting the star burst. One if the replies tells a B&H tutorial that explains the bizarre artifacts of the OP. The affect arises from diffraction at the diaphram blades and maximises as the f-stop increases. You get two for each diaphram blade and there will be no overlap with odd-numbered of blades.
Dec 30, 2015 15:53:53 #
gorgehiker wrote:
I was attempting to shoot a starburst at a natural bridge when I somehow produced several very strange artifacts. Can anyone tell me what happened?
Nikon D750
1/15sec
f18
ISO 80
16 mm (Nikon 16-35 lens)
Nikon D750
1/15sec
f18
ISO 80
16 mm (Nikon 16-35 lens)
it looks like you got the wrong lens hood, but for sure it's not on all the way. and the lens flare is normal, however you can change this by changing your angle of view relative to the sun
Dec 30, 2015 15:56:40 #
wdross
Loc: Castle Rock, Colorado
gorgehiker wrote:
I was attempting to shoot a starburst at a natural bridge when I somehow produced several very strange artifacts. Can anyone tell me what happened?
Nikon D750
1/15sec
f18
ISO 80
16 mm (Nikon 16-35 lens)
Nikon D750
1/15sec
f18
ISO 80
16 mm (Nikon 16-35 lens)
PixelStan77 is correct. The light off the lense lit up the lense hood and then reflected back into the lense. The outer shape of your first lense element is propably very curved. The ridges on the inside of the lense hood are lit up by the sun coming across from the left side of the image. No ridges can be seen on the left side of the image because they were just barely shaded by the edge of the hood from the sun. The hood produced a squarish opening due to the curve of the glass. You will not see that squarish opening by just looking through the lense hood. You would need some curved glass in front of your eye to bend the hood edges to "square".
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Dec 30, 2015 17:22:47 #
wdross
Loc: Castle Rock, Colorado
gorgehiker wrote:
I'm sending another photo taken at the same shoot that appears to have weird artifacts that are the strangest lens flare I have seen if they are lens flare. They appear to be multi colored objects rather than simple lens flares. Any ideas?
The multi color lense flare usually is caused by lense coatings, cemented lenses, and lense elements nearly surface to surface. Again, the greater the lense element curvature and the more off axis the sun is in the image, the more the quarter wave lenght coatings and internal reflections will separate the color and produce odd shapes to the flare.
Dec 30, 2015 23:53:13 #
TomV
Loc: Annapolis, Maryland
wdross wrote:
PixelStan77 is correct. The light off the lense li... (show quote)
I think you mean to agree with wattsimages. With that said, gorgehiker should offer if he did indeed use a ridged lens hood and was it on properly if he did.
I did not see any issue on these photos that are related to the recall.
Dec 31, 2015 02:23:50 #
wdross
Loc: Castle Rock, Colorado
TomV wrote:
I think you mean to agree with wattsimages. With that said, gorgehiker should offer if he did indeed use a ridged lens hood and was it on properly if he did.
I did not see any issue on these photos that are related to the recall.
I did not see any issue on these photos that are related to the recall.
I could be wrong, but I thought PixelStan77 was the first person to suggest that when one is shooting into the sun, one might not need a sunshade. But you are right that if the sunshade was not on properly, not down far enough on the lense or the wrong hood, the widest angle lense setting would show the inside of the lens hood too. And I agree with you that I do not see any issues related to the recall. Just lense hood and lense flare.
Dec 31, 2015 02:26:46 #
I've gotta agree with the lens hood being improperly mounted. You see where it gets wider at the top and bottom? Those should be at the sides. Your second shot is zoomed in further, avoiding catching the lens hood in the shot. Did you verify that you even have the right hood for that lens? Should be an HB-23 hood.
As for the lens flare, yeah it's gonna happen when you shoot into the sun. Not mentioned yet, did you have a filter attached which would add even more flare?
As for the lens flare, yeah it's gonna happen when you shoot into the sun. Not mentioned yet, did you have a filter attached which would add even more flare?
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