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Adaptall 300s what works?

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E Manual

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Hi, I have got a good, old tamron lens off ebay that came with a Nikon "N/A1" adaptall 2 adapter and I would like to offer my brother use of my tamron adaptall 2 lenses but am cautious of damaging his D300s Nikon. I did a search here and saw someone who had detached the adapter from a tamron lens while the combination was still on a D200/fuji, which jammed the adapter on the camera body.

Is there anything else to be aware of? and what functions can be expected, for example will the aperture close down automatically?, can the camera adjust the aperture in shutter or programme mode? F/32 on the lenses is also labelled AE. The adapter no external prongs but an inner and 2 outer lever/cams facing the camera. There are no electrical contacts.

Please forgive my ignorance of Nikons, I was Olympus until necently.
 
I never had a issue with araptall2 mount for Nikon with my D200.

The lens +adapter is equivalent of Nikon lens and not just a mount adapter.

So, you must first mount the adapter to lens then mount the combo to body. Remove the combo from body and reattach the mount to another if you needed.

I would keep mount semi permanently to the lens and treat it as a Nikon compatible lens for start.

The combo is effectively Nikon Ai compatible. You need to set lens data to D300s for metering as if you are using an old Nikon Ai lens.

--
Ben
http://ben-sketchbook.blogspot.com/
 
Thank You both for replying, Ben - does the mount/s you have feature a pair of opposed cams which are loosely interlinked, on the flat surface facing the camera body, a short one (near the iris lever) is part of a ring which displays F/ numbers on the rim and a long one on the other side. They are about 1.5 mm raised off the flat surface of the mount and I am concerned that they might jam on the body. From the picture of a D300 throat in the dpreview review it looks as if they are just outside the metal part of the throat.

I would hate to have the adapter left permanently in place, is this a normal linkage to the nikon body and if so is fitting a lens fool proof or does a certain aperture need to be selected first? I would be very grateful if you could clear this up.
 
Those features you mention are the EE-servo post and Aperture Indexing ridge, they are part of the AI specification (and thus the mount is compatible with all Nikon DSLRs).
 
Thanks Sillyconguru, my brother's lenses are new so he won't have experience of the earlier lenses, does this type fit on OK at any aperture setting or does a particular setting or end of the range need to be set first?

I like the mount, the secondary indicator is easier to read than the larger but further from the index mark main numbers. I might get a second hand nikon body sometime.
 
E Manual said:
Hi, I have got a good, old tamron lens off ebay that came with a Nikon "N/A1" adaptall 2 adapter and I would like to offer my brother use of my tamron adaptall 2 lenses but am cautious of damaging his D300s Nikon. I did a search here and saw someone who had detached the adapter from a tamron lens while the combination was still on a D200/fuji, which jammed the adapter on the camera body.

Is there anything else to be aware of? and what functions can be expected, for example will the aperture close down automatically?, can the camera adjust the aperture in shutter or programme mode? F/32 on the lenses is also labelled AE. The adapter no external prongs but an inner and 2 outer lever/cams facing the camera. There are no electrical contacts.
Click to expand...
As far as I know, N-AI type lenses should not be used on digital Nikon bodies. They may cause some damage to the camera. I remember having seen a warning about that in the D300s manual.
E Manual said:
Please forgive my ignorance of Nikons, I was Olympus until recently.
Click to expand...
You are forgiven...

At least by me, also a former Olympus user. ;)

EDIT:

Correction. I can't find the warning but Non-AI lenses are listed as incompatible. Read page 343 of the manual.
 
sillyconguru said:
Those features you mention are the EE-servo post and Aperture Indexing ridge, they are part of the AI specification (and thus the mount is compatible with all Nikon DSLRs).
Click to expand...
AI lenses work on our DSLRs but Non-AI are on the list of incompatible lenses on page 343 of the D300s manual. He says it is a "Nikon N/A1" which I interpret as Nikon Non-AI and would not use it unless it is AI converted. The problem is that N-AI fits just as well as AI, only a little bit more tightly, but if you are unlucky you will cause damage to the camera.
 
Thanks Olyflyer, Is the "N/AI" on the mount a tamron label for Nikon A/I ? My olympus mounts were labelled "OL". It has a secondary aperture ring and no prongs so mignt it be OK?, here is a pic'. Top of the lens is at 12 O Clock. The raised cams are at about 3 O Clock and 9 O Clock.



The taking lens used is a tamron 90/2.5 macro, lens on the mount is an old tamron 80-210.
 
Yes, it is possible that "N/AI" means "Nikon AI" for them, but it is confusing. All AI lenses have aperture feedback flags with two holes in them. I don't see the metal "flag" in your image, so I honestly don't know. Perhaps you could ask Tamron?
 
olyflyer said:
Yes, it is possible that "N/AI" means "Nikon AI" for them
Click to expand...
That is what it means.
olyflyer said:
All AI lenses have aperture feedback flags with two holes in them.
Click to expand...
The 'prong'. Yes, all AI lenses should have this (unless it has been removed). However; the mount shown is AI-S, notice the lens type signal notch near the locking hole (at about the 9 o'clock position).
 
olyflyer said:
He says it is a "Nikon N/A1" which I interpret as Nikon Non-AI
Click to expand...
Many 3rd party manufacturers use 'N/AI' to denote Nikon AI; the mount in question is AI compatible.
 
E Manual said:
does this type fit on OK at any aperture setting or does a particular setting or end of the range need to be set first?
Click to expand...
The aperture ring can be at any setting when mounting, that's what Auto Indexing (AI) means.
 
Thank you all very much, I think it is safe to let my brother put my 60 to 300 mm range of tamron manual glass to work. That would give him a nice 90 to 450 equivalent range on a 300s. He has a 40X which we can use as a guinea pig first.

I'm a bit more clued in now, time to pick up a nice pre AI lens for my 5DII. Thanks again.
 
I have what I am pretty sure from memory is that exact lens. My father bought it for use on his Nikon F (now mine) and it is one of the reasons I have stayed Nikon all this time. It has served me well on an F, 8008s, and my D300. It has been retired for the most part, replaced by Tamron's 70-200 2.8.

When I first got my D300, I realized that the lens was damaged. I took it to a local shop for repair (after Tamron sent it back saying they no longer have parts for it), and they seemingly just replaced the adaptall (they said the lens was good enough to be worth repairing). It works great, and is a ton lighter than the 2.8.

The point is, that I have used it with no damage to my Camera. The adaptall 2 is special in that it is BOH non-AI and AI. That hook on the aperture ring allows it to connect to the light meter in older cameras with the light meter in the viewfinder.
 
Hi Nick, the tamron adaptall 80-210 was an old lens that was literally gathering dust for years until I tried it on a 5DII with a hong kong OM-EOS adapter. I was amazed at the resolution quality I got (after a fair bit of usm). From 80 to about 120 it is surprisingly first rate, - after a bit of usm. They are dirt cheap on ebay. Unfortunately Nikons cannot use old 3rd party manual lenses because of the distance from the mount to the sensor but tamrons can just have their adaptall-2 mounts swapped. The nikon AI mount I got came with a very nice tamron SP zoom from ebay recently.
 
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