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  1. #1
    Senior Member
    STM's Avatar

    Can you guess which one is which?

    It is raining like crazy here and I was kind of bored so I decided to do a quick and dirty comparison between my 10.5cm f/2.5 Nikkor-P and 105mm f/1.8 AIS Nikkor. I cut a notch in the aperture ring of the 10.5cm so I could mount it on the D850 and meter with it, a pretty easy task using a Dremel and cut off wheel. The hardest part was figuring out how the get the aperture ring off! The f/1.8 is an insanely sharp lens so I was pretty much expecting it to blow out the 1964 vintage 10.5cm. To my great surprise (and delight), at f/8 they are nearly indistinguishable! Nikon got it right even 57 years ago. There is no post processing of either image except to combine them into one image and resize them to a size that Nikonites will let me upload.

    See if you can figure out which one is which:

    Can you guess which one is which?-105-comp-small.jpg



    Since Nikonites reduces the hell out of large images, a larger sized image (100% crops) can be found here:

    https://www.flickr.com/photos/[email protected]/50959531383


    › See More: Can you guess which one is which?
    FTn, F2A, FT2, FE2, F4E, D850, D500, D750

    8-15mm f/3.5-4.5 AFS, 15mm f/3.5 AIS, 16mm f/2.8 AIS, 18mm f/3.5 AIS, 24mm f/2.8 AIS, 24mm f/2 AIS, 25-50mm f/4 AIS, 28mm f/2.8 AIS, 35mm f/1.4 AIS, 35-70mm /3.5 AIS, 50mm f/1.8 AIS, 50mm f/1.4 AIS, 50-135mm f/3.5 AIS, 55mm f/2.8 AIS Micro, 85mm f/1.4 AIS ,135mm f/2 AIS, 80-200 f/4 AIS, 105mm f/1.8 AIS, 105mm 2.8 AIS Micro, 180mm f/2.8 AIS, 200mm f/2 AIS, 200mm f/4 Micro AIS, 300mm f/2.8 AIS, 400mm f/2.8 ED IF AIS, 500mm f/8 Reflex, 600mm f/4 ED-IF AIS



  2. #2
    Senior Member
    Bikerbrent's Avatar

    Re: Can you guess which one is which?

    The photo on the left has slightly better contrast on the yellow flower center.
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

  3. #3
    Senior Member
    Peter7100's Avatar

    Re: Can you guess which one is which?

    I would say it is impossible to notice any real difference.
    Peter

    D7100
    85mm 1.8G, 300mm F4 AF-S
    Canon 5D2, 7D, 17-40, 135.
    Lee filters

  4. #4
    Staff
    Super Mod
    hark's Avatar

    Re: Can you guess which one is which?

    The background of the one on the right either appears to be slightly sharper or has a little more contrast. No idea which is which although the one on the right would be my preference.
    Cindy - D750, D500, D7200
    My 2021 Thread

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



  5. #5
    Senior Member
    STM's Avatar

    Re: Can you guess which one is which?

    Ok, the one on the left is actually the 105mm f/1.8 AIS Nikkor. On paper (MTF tests) it does better than the 10.5cm but in practical usage I doubt you would see any difference unless there is a bright light in the frame at which point the multicoating is far better at preventing flare and ghosts. If you look at the rust on the support, it does appear that the f/1.8 is a little contrastier, but the differences are very subtle.
    FTn, F2A, FT2, FE2, F4E, D850, D500, D750

    8-15mm f/3.5-4.5 AFS, 15mm f/3.5 AIS, 16mm f/2.8 AIS, 18mm f/3.5 AIS, 24mm f/2.8 AIS, 24mm f/2 AIS, 25-50mm f/4 AIS, 28mm f/2.8 AIS, 35mm f/1.4 AIS, 35-70mm /3.5 AIS, 50mm f/1.8 AIS, 50mm f/1.4 AIS, 50-135mm f/3.5 AIS, 55mm f/2.8 AIS Micro, 85mm f/1.4 AIS ,135mm f/2 AIS, 80-200 f/4 AIS, 105mm f/1.8 AIS, 105mm 2.8 AIS Micro, 180mm f/2.8 AIS, 200mm f/2 AIS, 200mm f/4 Micro AIS, 300mm f/2.8 AIS, 400mm f/2.8 ED IF AIS, 500mm f/8 Reflex, 600mm f/4 ED-IF AIS

  6. #6
    Senior Member
    blackstar's Avatar

    Re: Can you guess which one is which?

    Look like the post (the straight-up part) in the left is more focused. I guess the left one is shot by 105mm.





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