a different way to look at it
Jan 12, 2015 12:20:17 #
Every day i see shots which couldn't have come from the gear that was used because i know the hardware couldn't be that good or in some cases that bad. There had to be a reason and in DXO'ing for a replacement wide angle for my landscapes i think i found a reason other than the user.
Too often we look at just the lens or body or shooter and not the whole system.
There is just too much information for these old brain cells so i plotted body versus the lenses that interested me.
Now i can see at a glance how much body each lens requires to get reasonable performance.
A good PP program can do a lot for CA, distortion and color so i only plotted sharpness, you may want to include cost.
Those improvements on the right can get rather expensive but so can buying 4 cameras in a row that offer lots of bells and whistles but marginal improvements
Too often we look at just the lens or body or shooter and not the whole system.
There is just too much information for these old brain cells so i plotted body versus the lenses that interested me.
Now i can see at a glance how much body each lens requires to get reasonable performance.
A good PP program can do a lot for CA, distortion and color so i only plotted sharpness, you may want to include cost.
Those improvements on the right can get rather expensive but so can buying 4 cameras in a row that offer lots of bells and whistles but marginal improvements
Jan 12, 2015 12:23:19 #
Jan 12, 2015 13:44:07 #
Georgia Peddler wrote:
Ahah!!! Just as I thought ??
yeh, thats what i thought too. I need a nikon 14-24 for my 800/810 bodies.
I already have a tamron 24-70 that was just so-so on my 7100 but when i drop it onto the set of curves, it looks as though it shines on those two bodies.
Just saved $2000.
Jan 13, 2015 06:00:59 #
dardan
Loc: Victoria
oldtigger wrote:
Every day i see shots which couldn't have come fro... (show quote)
What value or parameter does the vertical scale represent?
Jan 13, 2015 06:43:27 #
From what I see the D7000 is at the lowest spot for details considering those lenses. Is it?
I can only judge what I see in my pictures because I have no testing tools or a test bench and what I see with my lenses, none of those listed there, is more than satisfying to me.
I use often the old 28-105 D lens with my D7000 and that combination has yielded excellent photographs with high resolution in my prints.
I cannot speak on behalf of others but I have not seen a lens yet that did not do its job when the photographer did his.
I can only judge what I see in my pictures because I have no testing tools or a test bench and what I see with my lenses, none of those listed there, is more than satisfying to me.
I use often the old 28-105 D lens with my D7000 and that combination has yielded excellent photographs with high resolution in my prints.
I cannot speak on behalf of others but I have not seen a lens yet that did not do its job when the photographer did his.
Jan 13, 2015 08:02:55 #
oldtigger wrote:
Every day i see shots which couldn't have come fro... (show quote)
As expected but good to see it in graphic form. Nice work. :thumbup:
Which Samyang?
Jan 13, 2015 08:49:54 #
steve_stoneblossom
Loc: Rhode Island, USA
It seems to me that, with a few minor exceptions, the relative performance of each lens varies in accordance with the body with which it is used. That is to say, there are very few points on the graph where performance of lens A is better on camera #1 but worse on camera #2.
Jan 13, 2015 10:10:46 #
dardan wrote:
What value or parameter does the vertical scale represent?
vertical scale is the dxo score on dotted line and dxo sharpness on solid line.
The nikon 14-24 represents a very good lens.
Jan 13, 2015 10:20:59 #
steve_stoneblossom wrote:
...the relative performance of each lens varies in accordance with the body with which it is used. ... there are very few points on the graph where performance of lens A is better on camera #1 but worse on camera #2.
DF, D610, D800, D810 are prime examples where body is critical.
Jan 14, 2015 19:37:44 #
joer wrote:
As expected but good to see it in graphic form. ..........Which Samyang?
samyang 14/2.8 IF ED UMC
Jan 15, 2015 13:51:38 #
oldtigger wrote:
samyang 14/2.8 IF ED UMC
I like this lens very much. The DOF is so great it really doesn't need to focused so manual focus is not an issue for me.
Jan 15, 2015 14:16:21 #
joer wrote:
I like this lens very much. The DOF is so great it really doesn't need to focused so manual focus is not an issue for me.
i strongly recommend you do some critical focusing.
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