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  1. #11
    Senior Member
    Dawg Pics's Avatar

    Re: prime or zoom?

    @hark beat me to it by a minute.
    @Moab Man has the chipped version of that lens. Not sure what other difference there is. Curious minds want to know.


    › See More: prime or zoom?
    Last edited by Dawg Pics; 03-21-2018 at 11:10 PM.
    "Remember to gaze up at the night sky because there is a little bit of the cosmos in each of us."


    Um yeahhhh, I shoot a lot of pics of my dogs.
    D500 (DOB 05/26/17), D300, D80, SB-800. RIP-D100



  2. #12
    Senior Member
    Slipperman's Avatar

    Re: prime or zoom?

    i read the Q&A at the link i provided and it did confirm it is a 'chipped' version though i'm not exactly sure what that means. could someone explain please?
    Nikon D750, D5100
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    Nikkor 24-85mm f3.5-4.5
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    Sigma 105mm F2.8 EX DG OS HSM Macro
    Nikkor 18-140mm zoom lens (DX)
    meFOTO Globetrotter Aluminum Tripod (Red)
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  3. #13
    Staff
    Super Mod
    hark's Avatar

    Re: prime or zoom?

    I corrected my initial post where I mentioned the Rokinon. The chip is supposed to use the body's metering system to aid with exposure. It is a manual focus camera though.

    Not to throw a wrench into anything, but it sounds like Rokinon is expected to release an AF 14mm lens for FX.
    https://fstoppers.com/gear/rokinons-...tofocus-211639
    Cindy
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    and My 2019 Thread

    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  4. #14
    Senior Member
    Horoscope Fish's Avatar

    Re: prime or zoom?

    Quote Originally Posted by Slipperman View Post
    i read the Q&A at the link i provided and it did confirm it is a 'chipped' version though i'm not exactly sure what that means. could someone explain please?
    If the lens is "chipped" it means the Focus Confirmation dot will illuminate in the viewfinder when proper focus is (manually) achieved.

    Chip = Focus Confirmation Dot
    No Chip = No Focus Confirmation Dot
    Last edited by Horoscope Fish; 03-22-2018 at 03:36 PM. Reason: now with 33% more clarity...
    ~ 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
    ....
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  5. #15
    Senior Member
    jay_dean's Avatar

    Re: prime or zoom?

    I only have one prime and i do miss that flexibility of a zoom at times when using it, but thats just my opinion. I'm another big fan of the Nikon 16-35mm f/4, i had one for a while and it was excellent. Second hand and they can be had cheaper!

    .................................................. ................'Brighten My Northern Sky'.............................................. ..................................
    D4...D850+Grip...Nikon 14-24mm f/2.8G...24-70mm f/2.8E...70-200mm f/2.8E...300mm f2.8G VRII...500mm f/4G VR...SB-900

  6. #16
    Senior Member
    Texas's Avatar

    Re: prime or zoom?

    Quote Originally Posted by Horoscope Fish View Post
    If the lens is "chipped" it means the Focus Confirmation dot will illuminate in the viewfinder when proper focus is (manually) achieved.

    Chip = Focus Confirmation Dot
    No Chip = No Focus Confirmation Dot
    No Chip = yes - Focus Confirmation Dot (speaking for my D7100) using my 3 Nikkor MF lenses, AI and AI-S
    (super valuable feature)

    The chip, as added aftermarket, is not a computer chip, just an eprom "memory" which tells the camera firmware the F stop limit and focal length (and a few other things). Allows metering to work in all modes ASMP and reports the lens values in the exif's.

    It is of course possible that cameras other than my 7100 may refuse to light the dot without more than basic eprom comms with the lens.

    That would be just mean, no reason not to report the focus status, just because of a focus issue. Without a chip, the 7100 lets me punch in the widest f stop and FL in an internal memory. That's enough to allow full matrix and the other metering when in A or M mode (manual twist of aperture ring sets the A)
    Last edited by Texas; 03-22-2018 at 10:35 PM.
    D750, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D90, D200, D300s, and D7100)

  7. #17
    Senior Member
    Horoscope Fish's Avatar

    Re: prime or zoom?

    Quote Originally Posted by Texas View Post
    No Chip = yes - Focus Confirmation Dot (speaking for my D7100) using my 3 Nikkor MF lenses, AI and AI-S
    (super valuable feature)

    The chip, as added aftermarket, is not a computer chip, just an eprom "memory" which tells the camera firmware the F stop limit and focal length (and a few other things). Allows metering to work in all modes ASMP and reports the lens values in the exif's.

    It is of course possible that cameras other than my 7100 may refuse to light the dot without more than basic eprom comms with the lens.

    That would be just mean, no reason not to report the focus status, just because of a focus issue. Without a chip, the 7100 lets me punch in the widest f stop and FL in an internal memory. That's enough to allow full matrix and the other metering when in A or M mode (manual twist of aperture ring sets the A)
    I'm referring specifically to the Rokinon lens linked to in post #9, the Rokinon SP 14mm f/2.4 for Nikon. This latest version will meter in all modes and has a focus-confirmation chip, as opposed to previous versions of this lens which did not have focus confirmation. This is not an aftermarket add-on AF chip, like you can get for many lenses, this is a new, upgraded version of a previous lens offering.

    Nikon AI/AIS lenses are a totally different beast.
    ~ 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
    ....
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  8. #18
    Senior Member
    Texas's Avatar

    Re: prime or zoom?

    OK, I'll look up in-the-lens-focus-confirmation chip, that's new to me (for a manual lens). A manual focus lens has not a care in the world if it is in focus or not.
    Last edited by Texas; 03-23-2018 at 12:42 AM.
    D750, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D90, D200, D300s, and D7100)

  9. #19
    Senior Member
    Horoscope Fish's Avatar

    Re: prime or zoom?

    Quote Originally Posted by Texas View Post
    OK, I'll look up in-the-lens-focus-confirmation chip, that's new to me (for a manual lens). A manual focus lens has not a care in the world if it is in focus or not.
    I think it's more a matter that the old version of this lens, the un-chipped version, did not confirm auto-focus while the newer version of the lens, the chipped version, does. I can only assume someone considering buying this lens would be interesting knowing for certain which version they were looking at.
    ~ 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 ▬▬▬▬▬▬▬ ●

  10. #20
    Senior Member
    Texas's Avatar

    Re: prime or zoom?

    I'll simplify: D7100 focus dot works - chip or not // any brand manual lens
    Last edited by Texas; 03-23-2018 at 02:29 AM.
    D750, D100, Nikon 1 J5
    (Once owned: EL, F2AS, D50, D90, D200, D300s, and D7100)





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