Vignetting
Mar 25, 2012 13:35:21 #
ArtSeaMom
Loc: Cocoa Beach, FL
I took a bunch of pictures yesterday and had vignetting issues with many of them. Attached is one examle. Shot with NikonD200, 18-270 mm f/3.5-6.3, at 18 mm, ISO 400, f/4.8, 1/1600 (Don't know why I was sooting so fast and didn't increase the DOF but... my problem is the vignetting. Any thoughts/ideas on what I did wrong? (It wads a great party so maybe I just started to early LOL!!)
Mar 25, 2012 13:41:35 #
I've had this happen when the lens hood was not on straight, or it could be a thick filter frame (or stacked filters).
Mar 25, 2012 13:43:59 #
ArtSeaMom
Loc: Cocoa Beach, FL
The second shot was with the same camera and lens. Shot at 18 mm, ISO 400, f/9.5, 1/750
Mar 25, 2012 13:46:56 #
Mar 25, 2012 13:46:58 #
ArtSeaMom
Loc: Cocoa Beach, FL
I was shooting with a skylight and polorizing filter... forgot to mention that. I didn't have the lens hood on (my bad habit there).
Mar 25, 2012 13:55:40 #
The filters are stacked so you are seeing the top filter at the wide angles. Remove the skylight before putting on any other filter. You don't need to shoot with one since there is an UV filter built into the camera.
If you feel better by keeping it on the lens take if before shooting.
In the meantime, you can wither crop those areas out or reduce them in an editor.
If you feel better by keeping it on the lens take if before shooting.
In the meantime, you can wither crop those areas out or reduce them in an editor.
Mar 25, 2012 15:40:53 #
Mar 26, 2012 08:14:13 #
snowbear wrote:
The filters are stacked so you are seeing the top filter at the wide angles. Remove the skylight before putting on any other filter. You don't need to shoot with one since there is an UV filter built into the camera.
If you feel better by keeping it on the lens take if before shooting.
In the meantime, you can wither crop those areas out or reduce them in an editor.
If you feel better by keeping it on the lens take if before shooting.
In the meantime, you can wither crop those areas out or reduce them in an editor.
It can be removed in Lightroom if you happen to have that program.
Mar 26, 2012 09:03:24 #
ArtSeaMom
Loc: Cocoa Beach, FL
I do have Lightroom but I'm just learning it. So far I'm importing photographs but haven't done any editing. I'm still doing that in iPhoto.
Mar 26, 2012 14:17:27 #
ArtSeaMom wrote:
I was shooting with a skylight and polorizing filter... forgot to mention that. I didn't have the lens hood on (my bad habit there).
When I shoot with at 10-12mm with my wide angle lens with a similar filter arangment, I get vignetting also. I would suggest going up to 20-22mm to see if that eliminates he vignettng. If not, turn it a little more. This all about experimenting with your equipment so that you know what it will do.
Mar 26, 2012 15:27:19 #
Previous posts likely correct, for vignetting like that common as a zoom angle widens. The filter stack may or may not be adding to it. Find out - shoot open sky @ 18mm 23, 30, 50 etc. so you can see where vignetting fades to a tolerable level. Use same 2 filter stack.
Repeat series with only skylight filter.
Lastly repeat series with no filter. If this last series still shows vignetting ( it likely will @ 18 mm ) the correction will be in post editing. If LightRoom has a lens correction feature, and if your lens is listed there use it.
Otherwise vignetting can be removed with judicious use of paint brush or clone stamp tools.
Lastly, you might choose to add even more vignetting for effect
Repeat series with only skylight filter.
Lastly repeat series with no filter. If this last series still shows vignetting ( it likely will @ 18 mm ) the correction will be in post editing. If LightRoom has a lens correction feature, and if your lens is listed there use it.
Otherwise vignetting can be removed with judicious use of paint brush or clone stamp tools.
Lastly, you might choose to add even more vignetting for effect
Mar 27, 2012 14:46:34 #
What you seem to forget is that vignetting that pronounced should be the same in the four corners, unless the lens is out of whack.
Mar 29, 2012 16:25:58 #
Ok, since no one seems to see it...
The blackened areas comes from the higher point of view. The picture was taken while standing on something, inside a shelter (or whatever that is) whose shadow you see projected on the sand.
The top 'vignetting' is straight, consistent with the side of the shelter roof. The bottom vignetting is normal, considering the wide angle.
So two effects at play. Had the picture been taken with a true horizon, that would have been more flagrant.
Note: The lens shows significant color aberration on both sides of the picture (L&R) in the light area edges.
Solution:
- straighten the picture
- crop on a narrow horizontal 'landscape type' model
I can post the changes, if you wish. The aberration will not removed.
The blackened areas comes from the higher point of view. The picture was taken while standing on something, inside a shelter (or whatever that is) whose shadow you see projected on the sand.
The top 'vignetting' is straight, consistent with the side of the shelter roof. The bottom vignetting is normal, considering the wide angle.
So two effects at play. Had the picture been taken with a true horizon, that would have been more flagrant.
Note: The lens shows significant color aberration on both sides of the picture (L&R) in the light area edges.
Solution:
- straighten the picture
- crop on a narrow horizontal 'landscape type' model
I can post the changes, if you wish. The aberration will not removed.
Mar 29, 2012 16:28:39 #
The classic fix to this filter issue is to get a upsizing filter adapter and much larger diameter filters the particular lens cannot see relative to vignetting.
Mar 29, 2012 17:05:50 #
ArtSeaMom
Loc: Cocoa Beach, FL
Thanks - I'm pretty sure I can fix it. I was curious how I caused it so I won't cause it again in the future. I appreciate the insight.
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