dial at the bottom of lense what does it mean

5 years 7 months ago #601949 by [email protected]
I found one of my dad's old Nikon lenses a 28-200mm f3.5-5.6d and at the bottom these is a file with a green dot and orange dot on top and two layers of numbers 
22 16 11 8 5.6 and 3.5 
and under that the same numbers only smaller and the 22 is orange 
any help.
Thanks 


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5 years 7 months ago #601951 by Screamin Scott
That’s an older autofocus lens that requires a focus motor in the camera as there is none in the lens. The numbers correspond to aperture values. The reason for the two sets of numbers is because there is a little window in older cameras that displays the selected aperture in the viewfinder. The orange “22” is what you have to set the aperture to in order for the camera to properly meter in any mode except manual. The green “dot”  corresponds to the set aperture when the zoom is racked out past the minimum focal length. If you have a Nikon D3xxx or D5xxx , the lens won’t auto focus but will meter.

Scott Ditzel Photography

www.flickr.com/photos/screaminscott/

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5 years 7 months ago #601958 by [email protected]
so if I buy a concerter will I be able to use this on a sony a 7 ii he also had a 18mm f2.8 that I think might be a pretty good lenses 


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5 years 7 months ago #601959 by Shadowfixer1
Yes, but it will be manual focus only and you have to set the aperture on the lens.
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5 years 7 months ago #602041 by effron

Shadowfixer1 wrote: Yes, but it will be manual focus only and you have to set the aperture on the lens.


Like the old days, eh? Full manual!

Why so serious?
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5 years 7 months ago #602080 by fmw
We have "progressed" to the point where people haven't see an aperture ring before.  Just kidding.  The lens will work just fine on your Sony mirrorless with an adapter.  You will have to focus manually but will be able to meter with your camera in aperture priority or manual modes. 

The Nikkor 18mm f2.8 is a truly wonderful lens and still worth quite a bit on the used market.  It was my favorite wide angle back in the film days because of its rectilinearity.  It is a fairly rare lens.  You are lucky to have it.


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5 years 7 months ago #602153 by [email protected]
Thanks! right now all I have are 2 kit lenses and I really want to do land scape and astro photography so I'm really exstied that I'm going to be able to use something that i think is far superior to a $150 kit lenses 


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