Comparison between the Nikon 50mm f1.4G, 58mm f1.4G, and the 85mm f1.4G

OP
Vtec44

Vtec44

Been spending a lot of time on here!
Joined
Nov 13, 2008
Messages
3,501
Reaction score
1,882
Location
So Cal
Website
www.jamestangphotography.com
Can others edit my Photos
Photos NOT OK to edit
Then, that comparison is not valid since all parameters were not
preserved and constant throughout the test.
Yeah compression isn't what I was looking for since it's more predictable. I knew people would use compression to guess the lens. I wanted the framing to be as close as possible so people can guess w/o bias.
 

smoke665

TPF Supporters
Supporting Member
Joined
Mar 29, 2016
Messages
12,804
Reaction score
6,430
Can others edit my Photos
Photos NOT OK to edit
Like @NS: Nikon Shooter I question the validity of a test, where the parameters were changed. You inferred everything was equal in the shots, "They were shot using the same camera, same settings, from the same spot, under the same lighting, and just seconds apart" cropping the frames differently is not in keeping a constant parameter. I'm confused as to what exactly you where hoping to compare in this test.
 
Last edited:

Rickbb

No longer a newbie, moving up!
Joined
Jul 31, 2020
Messages
376
Reaction score
203
Location
Central North Carolina USA
Can others edit my Photos
Photos NOT OK to edit
Agreed, invalid. A comparison test eliminates all variables other than the things being compared.
 

Strodav

TPF Supporters
Supporting Member
Joined
Nov 25, 2018
Messages
421
Reaction score
186
Location
Houston, Tx
Can others edit my Photos
Photos NOT OK to edit
It's 58, 50, and 85m. This was before I do any AF fine tune. It's a bit of a surprise to see the result. I need to find a better model for a more thorough test. :chuncky:
I call foul! Given they were taken from the same spot, how is the magnification of the 50mm lens greater than the 85mm lens? Answer, cropped in PS, which was not stated in the original post.
 
OP
Vtec44

Vtec44

Been spending a lot of time on here!
Joined
Nov 13, 2008
Messages
3,501
Reaction score
1,882
Location
So Cal
Website
www.jamestangphotography.com
Can others edit my Photos
Photos NOT OK to edit
LOL The purpose for me was to test the back ground rendering under the same lighting, camera settings, and distance. Cropping in PS doesn’t change how a lens renders the background, the transition from light to dark in the out of focus area, or the onion ring effect. Most people can differentiate between 50 vs 58/85 based on the bokeh quality but it’s hard to do so between 58 and 85. If magnification is left in there then it’s pretty obvious which lens is which.

Did you guys also see that the 58mm appears to have less contrast compare to both the 50 and 85mm? It’s noticeable in the out of focus area.
 
Last edited:

smoke665

TPF Supporters
Supporting Member
Joined
Mar 29, 2016
Messages
12,804
Reaction score
6,430
Can others edit my Photos
Photos NOT OK to edit
Cropping in PS doesn’t change how a lens renders the background, the transition from light to dark in the out of focus area, or the onion ring effect.
I can't seem to pull it from the dark corners of my senior brain, but something about this doesn't seem totally correct. I would agree that the background rendering is locked, and wouldn't change, but how you view it would change if you crop because you're magnifying a specific part of the rendering. This might not be the best example to use, but I found this site very interesting because it allows you to rapidly compare the bokeh. DOF simulator - Camera depth of field calculator with visual background blur and bokeh simulation.
 

RAZKY

TPF Noob!
Joined
Jun 14, 2021
Messages
31
Reaction score
5
Can others edit my Photos
Photos NOT OK to edit
I can't seem to pull it from the dark corners of my senior brain, but something about this doesn't seem totally correct. I would agree that the background rendering is locked, and wouldn't change, but how you view it would change if you crop because you're magnifying a specific part of the rendering. This might not be the best example to use, but I found this site very interesting because it allows you to rapidly compare the bokeh. DOF simulator - Camera depth of field calculator with visual background blur and bokeh simulation.
If you subscribe to Wikipedia's definition of the word Bokeh - Wikipedia, that DOF calculator only shows the amount of blur - it says nothing about bokeh. I do agree with others who say the OP's "comparison" is meaningless.
 

smoke665

TPF Supporters
Supporting Member
Joined
Mar 29, 2016
Messages
12,804
Reaction score
6,430
Can others edit my Photos
Photos NOT OK to edit
you subscribe to Wikipedia's definition of the word Bokeh - Wikipedia, that DOF calculator only shows the amount of blur - it says nothing about bokeh. I

The definition of the original Japanese word "boke" is haze or blur. The "h" was added for ease of english pronuciation. The resulting word "bokeh" is sometimes defined as the asthetic quality of the OOF blur or the way a lens renders the OOF points of light. It's an old argument as to which is correct that's better left to another thread, but using the same source that you quoted, the first line of the definition reads " bokeh is the aesthetic quality of the "blur" produced in out-of-focus parts of an image". If you'll Google it most sites define it in some way that refers to the aesthetics of the blur in OOF areas.
 

RAZKY

TPF Noob!
Joined
Jun 14, 2021
Messages
31
Reaction score
5
Can others edit my Photos
Photos NOT OK to edit
The definition of the original Japanese word "boke" is haze or blur. The "h" was added for ease of english pronuciation. The resulting word "bokeh" is sometimes defined as the asthetic quality of the OOF blur or the way a lens renders the OOF points of light. It's an old argument as to which is correct that's better left to another thread, but using the same source that you quoted, the first line of the definition reads " bokeh is the aesthetic quality of the "blur" produced in out-of-focus parts of an image". If you'll Google it most sites define it in some way that refers to the aesthetics of the blur in OOF areas.
Since the "quality" of out of focus blur is determined by lens design, I fail to understand how the calculator can show it.
 

smoke665

TPF Supporters
Supporting Member
Joined
Mar 29, 2016
Messages
12,804
Reaction score
6,430
Can others edit my Photos
Photos NOT OK to edit
Since the "quality" of out of focus blur is determined by lens design, I fail to understand how the calculator can show

No, the lens may impart certain aesthetics in the OOF areas of the original digital raw file, but by no means does it prevent added enhancements post. Just about anything lens related, including "Bokeh balls" can be duplicated post, such that only the very experienced could catch the difference.
 

RAZKY

TPF Noob!
Joined
Jun 14, 2021
Messages
31
Reaction score
5
Can others edit my Photos
Photos NOT OK to edit
No, the lens may impart certain aesthetics in the OOF areas of the original digital raw file, but by no means does it prevent added enhancements post. Just about anything lens related, including "Bokeh balls" can be duplicated post, such that only the very experienced could catch the difference.
Thank you.
 

Most reactions

New Topics

Top