Question about Canon 50mm 1.4mm usm lens
Nov 9, 2017 21:21:30 #
I purchased this lens used from MPB and seem to be having problems with lots of noise and chromatic aberration in my photos. I am not sure if it is me or the lens. I am attaching an example. It is not the greatest shot, but shows a good example of what is happening. Any suggestions on what I can do to help with this problem are appreciated as I am still very new to this . I am using a Canon 80D and the lighting was poor. I really just want to make sure it isn't the lens.
Nov 9, 2017 21:29:46 #
Nov 9, 2017 21:34:40 #
All of the EXIF data is missing from your attachment. Can you create a new reply and post an original straight from the camera?
Nov 9, 2017 22:42:38 #
CHG_CANON wrote:
All of the EXIF data is missing from your attachment. Can you create a new reply and post an original straight from the camera?
I did as requested ( I think), posting the original with EXIF data.
Nov 9, 2017 22:45:45 #
karenmr wrote:
I did as requested ( I think), posting the original with EXIF data.
So sorry, wrong photo, here is the original.
Nov 9, 2017 22:49:05 #
fours2many wrote:
Check to see if it was recalled. Mine was and canon fixed it for me.
I checked, not on the recall list
Nov 10, 2017 00:23:58 #
karenmr wrote:
So sorry, wrong photo, here is the original.
Karen, welcome to the Hog!
I'm just on my phone but the pic you showed is so staurated any abberation especially green and purple fringe is really gonna be magnified.
I see no shadows, in dead light noise is just waiting to happen. There is no saturation, contrast or highlight and you're trying to put it in.
Fast lenses mostly heavily fringe when wide open. If you're wide open that is half the problem.
Does the lens misbehave in good light also? Good luck with it!
SS
Nov 10, 2017 00:40:31 #
karenmr wrote:
So sorry, wrong photo, here is the original.
Although this version is a lot different than the first, it still doesn't have any EXIF data. The data that would help us see how the camera was set has been removed by your Adobe Photoshop Lightroom Classic 7.0 (Windows) processing. Rather than having LR create a file version, can you go to the original image file via Windows Explorer and upload a copy of that file?
Nov 10, 2017 06:27:20 #
CHG_CANON wrote:
Although this version is a lot different than the first, it still doesn't have any EXIF data. The data that would help us see how the camera was set has been removed by your Adobe Photoshop Lightroom Classic 7.0 (Windows) processing. Rather than having LR create a file version, can you go to the original image file via Windows Explorer and upload a copy of that file?
Short of time right now, but will AV 1/80 F1.8 AWB ISO400 help until I can do as you asked until after work today?
Nov 10, 2017 08:11:14 #
karenmr wrote:
Short of time right now, but will AV 1/80 F1.8 AWB ISO400 help until I can do as you asked until after work today?
No worries. Post a version when you get a chance. One review of the lens noted chromatic aberration, specifically: The Canon 50mm f/1.4 has some spherochromatism, which is common in fast normal lenses. You may see green or magenta fringes on out-of-focus highlights. (KenRockwell.com)
You mentioned noise too. So, I wanted to see the image as noise is an attribute of the exposure settings in the camera and possible post processing, not the lens.
Coming back to chromatic aberration, I also wanted to see what post processing could do to correct the CA. Here the lens type is needed for use of automated corrective processing. The data that drives that automation has been stripped from the versions posted which is why I keep looking for an original version.
Nov 10, 2017 08:53:47 #
You destroyed your photo with adjustments. Your DOF is very poor probably due to low light conditions and shooting with the lens wide open or just plain being out of focus. The "nifty 50" is a great lens, and Canon techs will tell you it is as good as the f-1.2 at a fraction of the price.
Take a bracketed photo series on a bright sunny day using a tripod. Don't expect to analyze a lens after severe sharpening or saturating what is not there in the first place.
Take a bracketed photo series on a bright sunny day using a tripod. Don't expect to analyze a lens after severe sharpening or saturating what is not there in the first place.
Nov 10, 2017 09:57:22 #
Brent Rowlett wrote:
You destroyed your photo with adjustments. Your DOF is very poor probably due to low light conditions and shooting with the lens wide open or just plain being out of focus. The "nifty 50" is a great lens, and Canon techs will tell you it is as good as the f-1.2 at a fraction of the price.
Take a bracketed photo series on a bright sunny day using a tripod. Don't expect to analyze a lens after severe sharpening or saturating what is not there in the first place.
Take a bracketed photo series on a bright sunny day using a tripod. Don't expect to analyze a lens after severe sharpening or saturating what is not there in the first place.
The f1.8 is considered a/the "nifty 50". Not the f1.4.
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