Author Topic: "new" 55 f1.2  (Read 6283 times)

armando_m

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Re: "new" 55 f1.2
« Reply #15 on: February 21, 2017, 06:36:35 »
Thanks for the comments

Can't wait to try on the D800

I will not have time to attempt to modify the lens until wednesday
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Roland Vink

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Re: "new" 55 f1.2
« Reply #16 on: February 21, 2017, 07:31:22 »
I have an AI modified one for sale if anyone is interested. It is the New Nikkor (K) version which focuses closer than the older types (0.5m vs 0.6m). The lens is in good shape, optically and mechanically fine. Asking $275 USD

Pictures here: http://www.photosynthesis.co.nz/nikon/trade/5512.html

I probably should list it in the classified ads...

richardHaw

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Re: "new" 55 f1.2
« Reply #17 on: February 21, 2017, 08:44:39 »

armando_m

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Re: "new" 55 f1.2
« Reply #18 on: February 22, 2017, 05:42:08 »
Lens rework, it now fits the D800
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Jack Dahlgren

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Re: "new" 55 f1.2
« Reply #19 on: February 22, 2017, 06:24:17 »
Looks great. Show some photos with it!

Akira

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Re: "new" 55 f1.2
« Reply #20 on: February 22, 2017, 07:27:20 »
Nice job, Armando!  I'm overwhelmed by the amount of the bearing balls... :o :o :o
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Erik Lund

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Re: "new" 55 f1.2
« Reply #21 on: February 22, 2017, 09:27:26 »
Very nice job ;)

This vintage of lenses all had a he amount of steel-balls in the aperture mechanism before they thought of the holding-ring, a pain to put back together after chipping,,, that's why I sometimes opt for just leaving them in while machining,,,  ::)
Erik Lund

armando_m

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Re: "new" 55 f1.2
« Reply #22 on: February 22, 2017, 14:47:20 »
A couple of shots at f1.2...
1. Caps at about minimum focusing distance
2. Kid at about 2.5m , the focus on the nose, rather than the eye , probably because we moved, I focused with liveview and also likely has motion blur as it is a 1/15 exposure
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

armando_m

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Re: "new" 55 f1.2
« Reply #23 on: February 22, 2017, 15:09:04 »
Thanks for the comments

I was surprised that every screw was a flat head, don't know the right term, the opposite to the philips or JIS
I do not own nice and small enough flat screwdrivers, but tried with my jewelers set and it worked
All the screws were rather loose, I guess the lens was serviced in the past

The aperture ring had some sand underneath, now clean and with new grease it moves smoothly and clicks are precise

I did not venture into the focus helicoid, which I wanted to do , but the screws are tiny and my screwdrivers are not good enough, time to pay a visit to the tools shop where I got my JIS set.

The aperture spring got undone, and I was worried the ball bearings may get undone, which gladly did not happen

I did read Richard's blog about the 55mm repair, and AI conversion, since I do not own a support for the dremel that moves, his suggestion to control the depth of the cut of the dremel using a magazine was quite useful

Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Roland Vink

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Re: "new" 55 f1.2
« Reply #24 on: February 22, 2017, 20:51:04 »
Nikon used slot-head screws before switching the cross-head JIS in the early 1970s (roughly coinciding with the introduction of the multicoated "C" lenses). Your lens is from the first series made between late 1965 -  late 1967.

armando_m

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Re: "new" 55 f1.2
« Reply #25 on: February 23, 2017, 06:20:59 »
A last test image before moving to other threads
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Thomas Stellwag

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Re: "new" 55 f1.2
« Reply #26 on: February 23, 2017, 10:33:22 »
super expression and a good focus on the eye(s), means you put in speed grease ? 
Thomas Stellwag

armando_m

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Re: "new" 55 f1.2
« Reply #27 on: February 23, 2017, 14:31:34 »
super expression and a good focus on the eye(s), means you put in speed grease ?
speed grease ?
1/500

Also the  camera is on a tripod and I focused in live view, it helps that I'm holding her favorite toy while I focus , after shooting I'll throw the toy and she will come back ready to do another intense pose and repeat all day long
Armando Morales
D800, Nikon 1 V1, Fuji X-T3

Thomas Stellwag

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Re: "new" 55 f1.2
« Reply #28 on: February 23, 2017, 14:56:31 »
speed grease is a joke...for superfast focussing actions
Thomas Stellwag

armando_m

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Re: "new" 55 f1.2
« Reply #29 on: February 23, 2017, 15:32:27 »
speed grease is a joke...for superfast focussing actions

LOL... well you can see it was exactly the opposite, super slow and cumbersome focusing
Armando Morales
D800, Nikon 1 V1, Fuji X-T3