Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Main Photography Discussion
lens comments please
Page <<first <prev 3 of 4 next>
Mar 31, 2019 20:41:53   #
Elmerviking
 
Robert Bailey wrote:
Dxomark has tested this lens. It performs best on a D500. (You can enter what camera body you have and see how it performed on that body. I have a D7100 and it tests not as well.)
Here is the test on sharpness from dxomark (when mounted on a D500).
I own the lens, but no longer use it because it is mediocre at best.

https://www.dxomark.com/Lenses/Nikon/Nikon-AF-S-DX-NIKKOR-18-140mm-F35-56G-ED-VR-mounted-on-Nikon-D500---Measurements__1061


I don’t know how you interpreters the data. They are almost identical for the 7100 and 500. As a matter of fact the D7100 has sharpness 11 when the D500 has10 my.how can you say it’s mediocre? See this table:





Reply
Mar 31, 2019 21:00:08   #
Robert Bailey Loc: Canada
 
Here is the dxomark sharpness test of this lens mounted on a D7100.
As you can see it yields poor quality once you go past f 8.
That was my experience in using the lens for about 2 years.

The main point is that a score of 10 or 11 is NOT a good score!
A score of 40 or 50 is a good score!

https://www.dxomark.com/Lenses/Nikon/Nikon-AF-S-DX-NIKKOR-18-140mm-F35-56G-ED-VR-mounted-on-Nikon-D7100---Measurements__865

Reply
Mar 31, 2019 21:12:33   #
Robert Bailey Loc: Canada
 
I know it is an unfair comparison,
but here is the dxomark sharpness test on the Sigma 85 mm lens.
Compare that to the Nikon 18-140 (or just about any zoom lens)
and you realize the compromises that have been made
for the sake of convenience and affordability
(both of which are important).

https://www.dxomark.com/Lenses/Sigma/Sigma-85mm-F14-DG-HSM-A-Nikon-mounted-on-Nikon-D800E---Measurements__814

Reply
 
 
Mar 31, 2019 21:27:43   #
Elmerviking
 
Robert Bailey wrote:
Here is the dxomark sharpness test of this lens mounted on a D7100.
As you can see it yields poor quality once you go past f 8.
That was my experience in using the lens for about 2 years.

The main point is that a score of 10 or 11 is NOT a good score!
A score of 40 or 50 is a good score!

https://www.dxomark.com/Lenses/Nikon/Nikon-AF-S-DX-NIKKOR-18-140mm-F35-56G-ED-VR-mounted-on-Nikon-D7100---Measurements__865


Read the review! They say that the 18-140 is the sharpest in their database and also that the overall scare is”very good”. I guess you have your own opinion which nobody can tell you is wrong. I still go with the dx-o score and my own experience..it is a VERY GOOD lens!😊

Reply
Mar 31, 2019 23:04:10   #
DaveyDitzer Loc: Western PA
 
Had one (18-140) that came with my first body. Used it 98% of the time in Hawaii and later sold it and now regret selling it.

Reply
Mar 31, 2019 23:07:42   #
Elmerviking
 
DaveyDitzer wrote:
Had one (18-140) that came with my first body. Used it 98% of the time in Hawaii and later sold it and now regret selling it.


Just one quick example:

Mediocre quality??



Reply
Mar 31, 2019 23:20:01   #
Robert Bailey Loc: Canada
 
As the dxomark test results showed- as long as you don't go past f 8 it is fine!
No argument there.
For me, I got tired of trying to remember not to use it past f 8
so it sits on the shelf.

Reply
 
 
Mar 31, 2019 23:46:02   #
Robert Bailey Loc: Canada
 
The other thing that drove me crazy about this lens was the severe barrel distortion
(at wide angle settings) or severe pincushion distortion (at telephoto settings).

I've used this lens to take hundreds of photos of sunrises over the Atlantic ocean.
I make the assumption that the horizon should be straight (not curved inwards or outwards).
I would have to make corrections in Photoshop to fix this problem on every single photo.
3% or 4% or sometimes even 6% adjustment was needed on every photo.

Reply
Apr 1, 2019 00:44:31   #
racerrich3 Loc: Los Angeles, Ca.
 
Diamond41 wrote:
I have a D3300 and hopes to change that but in the mean time looking for walk-around type lens. Looking for a walk around lens with some reach when I want it.


the 18-300 good walk around and maybe enough reach. I have the f/3.5-6.3 I'm not pro enough for the f/3.5-5.6 lol.

Reply
Apr 1, 2019 02:11:50   #
foggypreacher Loc: Dickinson, Texas
 
I use a D3400 and my normal lens is the Nikkor 18-140 mm. I shoot a lot of house rebuilding, some inside and some outside. I also take pictures of my dog, clouds and other things that cross my path. It is good for portraits as right now I cannot buy anymore lenses. If the situation is right, I use my 35 mm f/1.8.

All said and done, the 18-140 works well for me.

Reply
Apr 1, 2019 12:47:00   #
Elmerviking
 
As you can see, there are a lot of different opinions...from love this lens to less than mediocre. Only you can make the decision what fits your needs.
My advice is to buy one from Best Buy, test it and if you don’t like Return it!
Best Buy have price match warranty and free shipping and return policy.

Reply
 
 
Apr 1, 2019 13:56:10   #
larryepage Loc: North Texas area
 
Elmerviking wrote:
As you can see, there are a lot of different opinions...from love this lens to less than mediocre. Only you can make the decision what fits your needs.
My advice is to buy one from Best Buy, test it and if you don’t like Return it!
Best Buy have price match warranty and free shipping and return policy.


I was researching another query this morning and happened to look at particular a lens on Nikon's site. Reviews seemed to be all over the board, so I looked a little closer. Those people who were moving up to the lens we were looking at wrote glowing reviews for it and gave it 5 or 4 stars. People who already had other "better" lenses to compare the subject lens to were uniformly brutal in their assessment of it. So my suggestion when you come across situations where reviews vary widely is to take a little extra time and understand the context of those reviews. The chorus of praises might not be quite what it first appears.

Reply
Apr 1, 2019 20:36:35   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
DaveO wrote:
I hardly think that my 200-500 is a walk around lens and the price is significantly more.


When I am birding I am walking around, and my walk around lens is a Sigma Sport 150-600 - but I wouldn't mind losing 2 lbs and getting a Tamron G2 - Walk around lens is a silly concept. You take the lens you think you will need to get the job done, or if you have no clue what you are going to encounter, then bring a walk around camera - like a bridge camera. I'd rather use a bridge with a good lens than a dslr or mirrorless with an average lens.

Reply
Apr 1, 2019 20:43:22   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
Elmerviking wrote:
Read the review! They say that the 18-140 is the sharpest in their database and also that the overall scare is”very good”. I guess you have your own opinion which nobody can tell you is wrong. I still go with the dx-o score and my own experience..it is a VERY GOOD lens!😊


Elmer and Robert - you are both misinterpreting the DXO mark scoring. A score in their metric is how a particular lens and camera compares to a "perfect" lens on that camera. It is not intended to be a comparison between lenses. If you look at some of the lenses that are tested on full frame and crop sensor cameras have different scores - depending on the sensor size and resolution. No, the lens is not sharper/less sharp on a crop body than it is on a full frame - it's only a measurement of perceptual megapixels - or whether or not getting a lens that has greater acuity/contrast is worth purchasing on a given body.

Reply
Apr 1, 2019 23:29:59   #
Elmerviking
 
Gene51 wrote:
Elmer and Robert - you are both misinterpreting the DXO mark scoring. A score in their metric is how a particular lens and camera compares to a "perfect" lens on that camera. It is not intended to be a comparison between lenses. If you look at some of the lenses that are tested on full frame and crop sensor cameras have different scores - depending on the sensor size and resolution. No, the lens is not sharper/less sharp on a crop body than it is on a full frame - it's only a measurement of perceptual megapixels - or whether or not getting a lens that has greater acuity/contrast is worth purchasing on a given body.
Elmer and Robert - you are both misinterpreting th... (show quote)


Sorry..I think you have to learn more about dxo mark! The perceptual sharpness for example is an average of central and side/corner sharpness, and even average sharpness at all f-stops! That means that you can compare one lens with others on the same camera! If you look at the table, which is for Nikon D7100, you’ll find that the 18-140 mm lens is the sharpest.
Another common misunderstanding is that FF lenses are sharper on a DX camera because “you use the sharper middle of the lens”. That is not true. A DX lens is most of the times sharper than a FF with same focal length.
Check dx o mark if you don’t believe it!
Have a good day!
😊 Bosse

Reply
Page <<first <prev 3 of 4 next>
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
Main Photography Discussion
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.