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  1. #1
    Senior Member
    Woodyg3's Avatar

    18-140mm Pretty Disappointing

    I picked up a used 18-140mm for a walk around, having heard that it is pretty sharp for an inexpensive kit lens. Well, the one I got is about as sharp as a butter knife. I wasn't expecting tack sharp, but this is pretty bad. Maybe I got a bad copy. My Tamron 17-50 is a zillion times sharper, and I got it used for about the same price. So sad. Nothing to do but cry. My rant ends here. Time to move on.


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    Woody Green

    Clear Eyes, Full Hearts, Can't Lose

    D500, D7200, D7100, D70



  2. #2
    Senior Member
    Horoscope Fish's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by Woodyg3 View Post
    I picked up a used 18-140mm for a walk around, having heard that it is pretty sharp for an inexpensive kit lens. Well, the one I got is about as sharp as a butter knife. I wasn't expecting tack sharp, but this is pretty bad. Maybe I got a bad copy. My Tamron 17-50 is a zillion times sharper, and I got it used for about the same price. So sad. Nothing to do but cry. My rant ends here. Time to move on.
    I had one. It was... Okay. Certainly nothing to write home about.
    Thanks/Like Woodyg3 Thanks/liked this post
     
    ~ Paul
    ....
    ....
    Primary Kit :: D850, Tamron 70-200mm f/2.8 G2, Tamron 24-70mm f/2.8 G2, Sigma 135mm f/1.8 Art, Sigma 50mm f/1.4 Art,
    Godox Flashes & Triggers, Manfrotto X055PROB, 3-Legged Thing Airhed II... All Stuffed into a Manfrotto Pro Backpack 50
    ....
    ....
    ● ▬▬▬▬▬▬▬ ๑۩۩๑ ▬▬▬▬▬▬▬ ●

  3. #3
    RIP :(
    Don Kuykendall's Avatar

    Re: 18-140mm Pretty Disappointing

    mine was sharp on my D7100. ONe of my favorite lenses. Did you fine tune it before shooting? That is the one thing I find really helps with just about all lenses on my D7100 and my D750.

    ================================================== ============================
    D750***D7100***24-120 f/4 ***70-300***Tamron 150-600***Tokina 16-28 f2.8***50mm f/1.8***Photoshop/Lightroom CC

  4. #4
    Senior Member

    Re: 18-140mm Pretty Disappointing

    How do you "fine tune" a lens?
    Nikon D7200, Nikkor 18-105 3.5-5.6, Nikkor 35mm 1.8, Nikkor 70-300 VR 4.5-5.6
    My Flickr Photo Stream

  5. #5
    Senior Member
    Horoscope Fish's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by alan92rttt View Post
    How do you "fine tune" a lens?
    He means fine tune the Auto-focus.

    There are several methods, but this one works as well as any :: How to Use the AF Fine-Tune Function
    ~ Paul
    ....
    ....
    Primary Kit :: D850, Tamron 70-200mm f/2.8 G2, Tamron 24-70mm f/2.8 G2, Sigma 135mm f/1.8 Art, Sigma 50mm f/1.4 Art,
    Godox Flashes & Triggers, Manfrotto X055PROB, 3-Legged Thing Airhed II... All Stuffed into a Manfrotto Pro Backpack 50
    ....
    ....
    ● ▬▬▬▬▬▬▬ ๑۩۩๑ ▬▬▬▬▬▬▬ ●

  6. #6
    RIP :(
    Don Kuykendall's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by alan92rttt View Post
    How do you "fine tune" a lens?
    i am old and my eyesight is not as sharp as it used to be so I use a software based solution that I really like.

    https://www.reikanfocal.com/focal-pro.html

    ================================================== ============================
    D750***D7100***24-120 f/4 ***70-300***Tamron 150-600***Tokina 16-28 f2.8***50mm f/1.8***Photoshop/Lightroom CC

  7. #7
    Senior Member
    Woodyg3's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by Don Kuykendall View Post
    mine was sharp on my D7100. ONe of my favorite lenses. Did you fine tune it before shooting? That is the one thing I find really helps with just about all lenses on my D7100 and my D750.
    No, Don, but it's not a front or back focus issue. Nothing is very sharp. I wonder if this is simply a bad copy. It was an inexpensive experiment, so it's not a huge deal. I can cover the range with my Tammy 17-50 and Nikon 70-300 and get very sharp results.
    Woody Green

    Clear Eyes, Full Hearts, Can't Lose

    D500, D7200, D7100, D70

  8. #8
    Senior Member
    Texas's Avatar

    Re: 18-140mm Pretty Disappointing

    I've been trying to get on with my plan to sell my 18-105mm VR. I've got its range covered just fine by other lenses but the 18-105 is just too sharp to part with. So far.

    I'm betting you have a bad copy since the reviews of most of the Nikon 18-xxx's are very similar.
    D750, D90, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D200, D300s, and D7100)

  9. #9
    Senior Member
    Challenge Team
    Blacktop's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by Woodyg3 View Post
    No, Don, but it's not a front or back focus issue. Nothing is very sharp. I wonder if this is simply a bad copy. It was an inexpensive experiment, so it's not a huge deal. I can cover the range with my Tammy 17-50 and Nikon 70-300 and get very sharp results.
    There are 2 versions of that lens. The 18-140mm f3.5-5.6 and the 18-140 f/4. I'm betting you picked up the older inexpensive version. (difference is day and night)
    Last edited by Blacktop; 10-20-2017 at 06:34 PM.
    Nikkor 20mm f/2.8 AF-D
    Nikkor 28-105mm f/3.5-4.5-D
    Nikkor 50mm f/1.8-D
    Nikkor 24-120mm f/4 VR
    Nikkor 70-200mm F/2.8 VR I
    Nikkor 200-500mm f/5.6 VR
    Pete's Flickr... Blacktop's Photo and a Song .... Blacktops 365

  10. #10
    Senior Member
    Challenge Team
    Blacktop's Avatar

    Re: 18-140mm Pretty Disappointing

    Quote Originally Posted by Blacktop View Post
    There are 2 versions of that lens. The 18-140mm f3.5-5.6 and the 18-140 f/4. I'm betting you picked up the older inexpensive version. (difference is day and night)
    Never mind!!! I'm not thinking clear this morning. I'm thinking about the 24-120mm. Sorry!!! Carry on.
    Nikkor 20mm f/2.8 AF-D
    Nikkor 28-105mm f/3.5-4.5-D
    Nikkor 50mm f/1.8-D
    Nikkor 24-120mm f/4 VR
    Nikkor 70-200mm F/2.8 VR I
    Nikkor 200-500mm f/5.6 VR
    Pete's Flickr... Blacktop's Photo and a Song .... Blacktops 365





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