Older Nikon lens on my D7100
May 25, 2019 11:18:05 #
I have a D7100 and love the camera. Coming very late to DSLRs, I still have my Nikon F and FTn. For those bodies, I have a Nikkor-S Auto, 50mm, f1.4 lens that is outstanding. I have read two D7100 manuals (Nikon's and Thomas' Digital Field Guide for D7100) and it sounds as if there will be no problem with the lens mount. I know I will not have auto-focus and will have to use manual exposure setting, but that isn't a problem. I just don't want to do the 7100 mount or my lens mount any damage. UHH advice greatly appreciated.
May 25, 2019 11:25:02 #
adamsg wrote:
I have a D7100 and love the camera. Coming very la... (show quote)
Adam, That is what is lovely about Nikon and it's old mount system. You will be fine with your D7100 and mating your Nikkor-S Auto, 50mm, f1.4 lens. Some of the latest high tech Nikons would need an adapter for your Nikkor-S Auto, 50mm, f1.4 lens.
Have fun shooting with it.
May 25, 2019 11:26:34 #
May 25, 2019 11:31:17 #
adamsg wrote:
Thanks Stan!! I am going to give it a try today.
Have fun. Post an image.
May 25, 2019 11:40:48 #
Have fun and post some images. If you looking at the used market you will be surprised about the value of older lenses
May 25, 2019 11:55:19 #
You may want to check out:
AI Conversions by John White at www.aiconversions.com
I just checked the web address and it is working.
Chief Rob
AI Conversions by John White at www.aiconversions.com
I just checked the web address and it is working.
Chief Rob
May 25, 2019 12:51:58 #
therwol
Loc: USA
adamsg wrote:
I have a D7100 and love the camera. Coming very la... (show quote)
NO. NO. NO. Sorry for the caps. Don't want you to break your camera.
If you have a pre-1977 lens, it doesn't have a groove in the aperture ring to accommodate the aperture ring feeler on the camera. You will BREAK it.
My first camera was a Nikon FTn. I modified all of my lenses with factory aperture ring replacements decades ago. Nikon doesn't supply those any longer, and the supply from third party sources is very limited. People now have their lenses modified as suggested in the post before this one.
This image is right out of the use manual for the camera. Ken Rockwell's compatibility list concurs.
May 25, 2019 12:52:12 #
Thanks, Chief Rob! I will take a look. I will post some shots as soon as the weather breaks around here. We are having the dankest, wettest May in the 20 years I have lived in Idaho.
May 25, 2019 12:57:18 #
therwol: A BIG, BIG thank you for the warning. I now need to learn how my lens could be modified, if that is at all possible. The lens, as well as a 150mm telephoto and 35mm all are non-AI, having the "saddle" that engages the aperture sensing pin on the meter head. My D7100 thanks you, too.
May 25, 2019 14:04:44 #
adamsg wrote:
therwol: ..........
all are non-AI, having the "saddle"
that engages the aperture sensing
pin on the meter head. .....
all are non-AI, having the "saddle"
that engages the aperture sensing
pin on the meter head. .....
Presence of the "saddle" does not
in itself indicate a pre-Ai lens. For
many years Ai lenses retained that
to ensure backward compatibility
of newer lenses for users of pre-Ai
camera bodies.
The control ring on a pre-Ai lens
verrrrry slightly overlaps the body
flange when mounted on a body.
IOW it forms a very slight "skirt"
all around the lens flange so that
if you view the unmounted lens
from the side, it will not allow a
line-of-sight across the rear face
of the flange [viewed truly square
on]. It is THAT skirt that will harm
the aperture follower on a newer
camera body.
The skirt runs smoothly all around
the lens ... nothing to engage the
aperture follower of a Ai body. On
Ai lenses there's a partial skirt on
the control ring which moves the
aperture follower peg as the ring
is turned.
So double check your lenses and
don't dismiss them solely due to
the presence of the "saddle".
You can likely find some images
that will show you what I've tried
to describe with words.
This is worth a look-see:
https://kenrockwell.com/nikon/compatibility-lens.htm
.
May 25, 2019 14:16:12 #
UserID: Thank you for the very detailed and decisive information in your reply. Indeed,, I do have that older non-AI lens with the full, circumferential flange skirt on the back of the lens body. Had I tried to mount it on my 7100, it would have done damage. Again, my thanks for your timely and and informative posting.
May 25, 2019 15:02:47 #
adamsg wrote:
I have a D7100 and love the camera. Coming very la... (show quote)
Nikkor Non AIS or pre AIS lenses will mount on my D3100 but not on my D7000. Nikkor AIS lenses will mount on both.
If you try to put a non-AIS lens on the D7000 it is too tight to turn easily and lock in the mount. The AIS lens turns easily and locks in the mount with no problem.
I modified my non AIS lens by using a dremel tool to grind away about a 1-1/2" wide portion of the metal collar on the lens, to make it roughly flush with the rest of the collar. When I was done I reattached the tiny triangle bracket on the collar and used a permanent sharpie to blacken the ground area. See attached 3 pics.
May 25, 2019 15:22:47 #
The Nikkor-S Auto is pre AI lens and it's the same vintage as the Nikon F. If you mount it on the D7100 it might damage the AI coupling. According to Nikon it's not useable.
May 25, 2019 15:52:45 #
therwol
Loc: USA
Bobspez wrote:
Nikkor Non AIS or pre AIS lenses will mount on my ... (show quote)
Making the lens mount by simply grinding away part of the aperture ring is not exactly the same as having the ring modified properly with a proper groove so that it works with the metering system of the newer camera. The position of the groove is critical and is best left to experts. One consequence of having it done could be that the metering prong that is necessary for the older cameras may have to be ditched or modified after the groove is ground in the ring. The groove may have to extend under the prong. I would leave this to experts to figure this out.
May 25, 2019 16:13:33 #
`
ONE MORE THING.
Many old nikkors have various protruberances
on the rear unrelated to the lens flange. These
are not consistent from one lens design to the
next. These could be larger on one lens than
another of different FL or f/stop even tho both
lenses were made the same year.
Likewise, looking into the body with the lens
removed you will see various "lumpy" stuff ...
it's not a smooth-walled chamber. And these
lumpy things are not the same from camera
to camera.
So, even if you modded a lens to be "Ai-safe"
you may or may not have collisions between
the odd stuff on the rear of the lens and the
lumpy stuff inside the camera. So, you may
hafta grind down the odd stuff on the rear of
the lens and repaint it flat black again :-(
.
ONE MORE THING.
Many old nikkors have various protruberances
on the rear unrelated to the lens flange. These
are not consistent from one lens design to the
next. These could be larger on one lens than
another of different FL or f/stop even tho both
lenses were made the same year.
Likewise, looking into the body with the lens
removed you will see various "lumpy" stuff ...
it's not a smooth-walled chamber. And these
lumpy things are not the same from camera
to camera.
So, even if you modded a lens to be "Ai-safe"
you may or may not have collisions between
the odd stuff on the rear of the lens and the
lumpy stuff inside the camera. So, you may
hafta grind down the odd stuff on the rear of
the lens and repaint it flat black again :-(
.
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