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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 21 Mar 2014 (Friday) 18:28
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Tamron 28-75 f/2.8 - does this look sharp

 
IlliniFan99
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Mar 21, 2014 18:28 |  #1

I have the lens listed in the title. I have been worried about it's sharpness. Here are a couple of pictures I took today:

Images are SOOC. For this first one the center focus was on the middle of the glass ornament:

IMAGE: http://farm4.staticflickr.com/3798/13315712314_b8d2edc9a7_c.jpg
IMAGE LINK: http://www.flickr.com …18018477@N03/13​315712314/  (external link)
IMG_6513 (external link) by owen_lancaster1 (external link), on Flickr

This one the focus was on the blue alligator.

IMAGE: http://farm8.staticflickr.com/7181/13315361445_9faed7345a_c.jpg
IMAGE LINK: http://www.flickr.com …18018477@N03/13​315361445/  (external link)
IMG_6509 (external link) by owen_lancaster1 (external link), on Flickr

Am I nuts or are these lacking in sharpness?



  
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mgk2
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Mar 21, 2014 18:34 |  #2
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This lens is never known for its sharpness but the cheap price.....

Just don't pixel peep too much :p




  
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Charlie
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Mar 21, 2014 18:35 |  #3

they're soft..... any chance you're using a filter?


Sony A7siii/A7iii/ZV-1 - FE 24/1.4 - SY 24/2.8 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - F 600/5.6 - CZ 100-300 - Tamron 17-28/2.8 - 28-75/2.8 - 28-200 RXD
Panasonic G9 - Laowa 7.5/2 - PL 15/1.7 - P 42.5/1.8 - OM 75/1.8 - PL 10-25/1.7 - P 12-32 - P 14-140

  
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IlliniFan99
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Mar 21, 2014 18:36 |  #4

Charlie wrote in post #16776138 (external link)
they're soft..... any chance you're using a filter?

Negative. Is there anything I can do about the softness?




  
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MakisM1
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Mar 21, 2014 18:39 |  #5

This is not a sharp lens to begin with...

http://www.the-digital-picture.com …omp=0&FLIComp=0​&APIComp=0 (external link)

Compared to the 18-200 superzoom, it doesn't do that well...


Gerry
Canon 5D MkIII/Canon 60D/Canon EF-S 18-200/Canon EF 24-70L USM II/Canon EF 70-200L 2.8 USM II/Canon EF 50 f1.8 II/Σ 8-16/ 430 EXII
OS: Linux Ubuntu/PostProcessing: Darktable/Image Processing: GIMP

  
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mgk2
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Mar 21, 2014 19:44 |  #6
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IlliniFan99 wrote in post #16776143 (external link)
Negative. Is there anything I can do about the softness?

Sorry to be blunt....but the answer is no.

You get what you pay for.




  
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SqueekyBoy
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Mar 21, 2014 20:00 |  #7
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The Tamron 28-75 is my everyday lens for my 6D. It is not nearly as sharp as my 35 IS or 100 f/2. It isn't even as sharp as my Sigma 70-200 OS. What it is, is good enough. I paid $300 for it, and the only real upgrade is the Tamron 24-70 VC or the 24-70 II. Neither is worth the price for what I do.




  
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Charlie
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Mar 21, 2014 20:12 |  #8

MakisM1 wrote in post #16776153 (external link)
This is not a sharp lens to begin with...

http://www.the-digital-picture.com …omp=0&FLIComp=0​&APIComp=0 (external link)

Compared to the 18-200 superzoom, it doesn't do that well...

one of his shots was stopped down to 7.1..... it should be really sharp there, but it's not. He's using on APS-C, and the tamron should be as sharp in the center as the 24-70L mk1. It's a sharp lens on a crop body, but his copy does look very soft.


Sony A7siii/A7iii/ZV-1 - FE 24/1.4 - SY 24/2.8 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - F 600/5.6 - CZ 100-300 - Tamron 17-28/2.8 - 28-75/2.8 - 28-200 RXD
Panasonic G9 - Laowa 7.5/2 - PL 15/1.7 - P 42.5/1.8 - OM 75/1.8 - PL 10-25/1.7 - P 12-32 - P 14-140

  
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Mornnb
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Mar 21, 2014 23:06 |  #9

IlliniFan99 wrote in post #16776121 (external link)
I have the lens listed in the title. I have been worried about it's sharpness. Here are a couple of pictures I took today:

Images are SOOC. For this first one the center focus was on the middle of the glass ornament:


Am I nuts or are these lacking in sharpness?

F/2.8 on a $300 zoom Try stopping it down it should perform well at f/5.6 or f/8. I got this lens largely because it looks cheap and doesn't draw much attention for street photography. And it's pretty good when stopped down. No worse than the 24-105mm.


Canon 5D Mark III - Leica M240
EF 16-35mm F/4 IS L - EF 14mm f/2.8 L II - - EF 17mm TS-E L - EF 24-70mm f/2.8 L II - EF 70-200mm IS II f/2.8 L - Sigma 35mm f/1.4 Art - Sigma 85mm f/1.4 EX
Voigtlander 15mm III - 28mm Elmarit-M ASPH - 35mm f/1.4 Summilux-M FLE - 50mm f/1.4 Summilux-M ASPH
500px (external link)

  
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JonKline
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Mar 21, 2014 23:13 |  #10

Is it possible autofocus is off, or are you focusing manually?


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IlliniFan99
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Mar 21, 2014 23:36 |  #11

JonKline wrote in post #16776670 (external link)
Is it possible autofocus is off, or are you focusing manually?

No, I'm using AF. How would I know if it's off?




  
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IlliniFan99
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Mar 21, 2014 23:38 |  #12

Mornnb wrote in post #16776664 (external link)
F/2.8 on a $300 zoom Try stopping it down it should perform well at f/5.6 or f/8. I got this lens largely because it looks cheap and doesn't draw much attention for street photography. And it's pretty good when stopped down. No worse than the 24-105mm.

The second picture is f/7.1.




  
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Mornnb
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Mar 21, 2014 23:45 |  #13

JonKline wrote in post #16776670 (external link)
Is it possible autofocus is off, or are you focusing manually?

Good point. It would well be that the lenses AF is missing focus. Try manual focus.


Canon 5D Mark III - Leica M240
EF 16-35mm F/4 IS L - EF 14mm f/2.8 L II - - EF 17mm TS-E L - EF 24-70mm f/2.8 L II - EF 70-200mm IS II f/2.8 L - Sigma 35mm f/1.4 Art - Sigma 85mm f/1.4 EX
Voigtlander 15mm III - 28mm Elmarit-M ASPH - 35mm f/1.4 Summilux-M FLE - 50mm f/1.4 Summilux-M ASPH
500px (external link)

  
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GregoryF
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Mar 22, 2014 00:46 |  #14

Focus manually in live view and check your results.


6D, 5D, 7Dii, Eos R and too many lenses, flashes and aux. gear to list!:cool:
A simple hobby gone horribily wrong

  
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phreeky
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Mar 24, 2014 10:29 |  #15

That looks horrible compared to mine, especially once you consider that one of those is at F/7.1. I'm on my 2nd copy (the first lived for many years of hard use), and both I considered to be fairly sharp wide open and very sharp once stopped down a little.




  
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Tamron 28-75 f/2.8 - does this look sharp
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