Author Topic: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI  (Read 5002 times)

golunvolo

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Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« on: May 21, 2017, 22:24:48 »
I´ve got it yesterday for 80€, shipping included. It maybe simple for the people here but it is my first ever modification of this kind. I couldn´t use it as I own a d700 and d750 so modification was needed. It has also some oil in the iris but that will have to wait a little. I went through the excellent post by Richard explaining how to tear it down and, even I started with hesitation and looking for someone to do it, I´m pretty sure I´ll do it myself.
   As of today, It is AI modified and it works without problem from f/2.5 to f/11. I tried M and A without problems.
   I have to get use to manual focus! With tripod and lv the results are even better than I expected. Handheld is getting easier fast too.

   1: the tool
   2: with tripod and lv @ f/5.6
   3: from same position shooting through the blinds also @ f/5.6

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #1 on: May 21, 2017, 22:28:57 »
Auto metering. The window in the background is about 10 mts away.
1. f/2.5
2. f/4
3. f/5.6
4. f/8
5. f/11

   Only the aperture ring was used. Camara in A mode.

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #2 on: May 21, 2017, 22:33:18 »
Handheld manual focus @f/2.5 and f/5.6

  That´s it. I have no pictures "of the lens", only "with the lens"  :P :o ::) Will post one to show how the mod looks. It is very straight forward, just had to be careful and go slowly.
       
   How difficult will be to add a CPU?

Bjørn Rørslett

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #3 on: May 21, 2017, 23:25:37 »
Congratulations with your "new" lens. Any 105/2.5 is a fine addition to a Nikkor line-up.

"How difficult will be to add a CPU?" not very, if the parts are available :D

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #4 on: May 21, 2017, 23:56:41 »
Bjørn, I actually have this one and one pristine copy of the "Gauss " type.
  Are the parts available?   ::)

Bjørn Rørslett

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #5 on: May 22, 2017, 00:17:01 »
I'm at the bottom of my inventory but will have a look tomorrow.

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #6 on: May 22, 2017, 00:50:22 »
Thank you

richardHaw

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #7 on: May 22, 2017, 03:39:30 »
congratulations!  :o :o :o

Bent Hjarbo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #8 on: May 29, 2017, 10:40:16 »
Hi. Is it the Sonnar design with the "screw-on" aperture ring?
I got one of these, and is considering the Ai change as it make it easier to use even on a Df.

MFloyd

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #9 on: May 29, 2017, 12:56:21 »
Excellent lens ! I had mine redone by the Bjørn/Erik dream team  :)

Γνῶθι σεαυτόν

armando_m

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #10 on: May 29, 2017, 15:23:21 »
Paco,

It is a user friendly lens, specially after my first experience with a MF lens on the D800 was with the 55 f1.2,  and the results are very satisfying, felicidades !

The guides from Richard are an invaluable resource
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #11 on: May 30, 2017, 00:59:14 »
Hi. Is it the Sonnar design with the "screw-on" aperture ring?
I got one of these, and is considering the Ai change as it make it easier to use even on a Df.
   It is. The Ai change is very easy. It is my first. I needed a dremel and patience.

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #12 on: May 30, 2017, 01:04:03 »
Paco,

It is a user friendly lens, specially after my first experience with a MF lens on the D800 was with the 55 f1.2,  and the results are very satisfying, felicidades !

The guides from Richard are an invaluable resource

   Gracias Armando.

   Richard guides are excellent. I received the lens with some oil in the iris and a somehow stiff helicoids. Just following his blog I have done a complete tear down of the lens today.  Aperture is snappy now and everything is working as it is suppose to do. My first! I´m so happy.
   Here also a snap with the lens just to try.

   Thank you all
     

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #13 on: May 30, 2017, 22:07:38 »
I took it today out for a spin. So this should be me...

golunvolo

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Re: Auto-Nikkor-P 105mm f/2.5 pre-AI to AI
« Reply #14 on: May 30, 2017, 22:10:23 »
Today is a local holidays, no work for me. I have the whole day for myself. Walking around with no time schedule or direction  8)
1-Post-free
2-All the details
3-With extension