Author Topic: Nikkor K 50mm f/1.4, opinions  (Read 2109 times)

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #30 on: August 08, 2018, 14:52:03 »
I have an Ais with donít make any sharp images a f1.4.
At f2 it is on par with my old 50 H.C f2.
Any idea what is wrong, and can it be repaired?

it's sharp wide open when the subject is a bit further about more than 2m away. i always thought its bad until i realized that this lens was calculated for that kind of distances  :o :o :o the strength of this lens is the resolution from f/2 and up. it's sharp enough to render individual strands of hair at the corners of the frame

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #31 on: August 08, 2018, 14:55:07 »
both shot at f/1.4, one is minimum focusing distance while the other is about 2-3m away.  :o :o :o

the flower was cropped at the center almost 1:1

the wig was shot at the far edge of the frame cropped almost to 1:1

the lens can be reasonably sharp at f/1.4 if you know when and how to use it. i wish i knew what i know now because i shot with the AF-D for many years.

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #32 on: August 08, 2018, 14:58:39 »
couple: f/1.4, chromatic aberration is corrected pretty well when the subject is further from the frame.

telephone: f/1.4, chromatic aberration is making the lens not look sharp.

one more thing you can do is stop it down by a very small amount and that should get rid of the chromatic aberration, most of it that is.

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #33 on: August 08, 2018, 15:01:03 »
at f/2.

we did a test shooting girls almost a decade ago with the 50/1.4 vs the 50/1.8

the 50/1.4 wins easily at f/1.8 vs the 50/1.8 at f/1.8, the one thing we noticed is the resolution and micro contrast.  :o :o :o

Bent Hjarbo

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #34 on: August 08, 2018, 17:55:23 »
I did some very boring tests today with my sample og the Ais 50f1.4.
It is just a chair, focus is at the place in both images.

Peter Forsell

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #35 on: August 08, 2018, 20:02:32 »
A few samples from my Nikkor K 50/1.4.



20180808-_P3F6295b by foppa2011, on Flickr


20180808-_P3F6289b by foppa2011, on Flickr


20180808-_P3F6287b by foppa2011, on Flickr


20180808-_P3F6283b by foppa2011, on Flickr


20180808-_P3F6281b by foppa2011, on Flickr


20180808-_P3F6278b by foppa2011, on Flickr


20180808-_P3F6273b by foppa2011, on Flickr



richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #36 on: August 09, 2018, 02:28:45 »
that indeed looks like how the Nikkor-S renders  :o :o :o

https://richardhaw.com/2016/01/23/project-nikkor-s-50mm-f1-4/

you can see a hint of the glow in the girls skin, very characteristic of nikons faster lenses in the old days like the 55/1.2 ::)

i have a picture of my daughter that i took last week from about 1m and it's sharp at f/1.4 i will share a crop later tonight if i have time tonight.

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #37 on: August 09, 2018, 02:31:50 »
I did some very boring tests today with my sample og the Ais 50f1.4.
It is just a chair, focus is at the place in both images.

yes, thats pretty much how it should look like  :o :o :o

you can confirm it with my samples after i publish the article some time this weekend or next week.

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #38 on: August 10, 2018, 15:05:41 »
Cinestill 800T

both from the K2. preparing a repair and review of the K1 because of this thread :o :o :o

Peter Forsell

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Strange Nikkor K 50mm f/1.4 artefact??
« Reply #39 on: August 11, 2018, 14:58:14 »
Nice work Richard.

I have a question. The strange patterned blooming and artefacts on her legs... is it just motion blur, even at 1/2000? Or interplay of some other things?


20180811-_P3F6368b by foppa2011, on Flickr

richardHaw

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Re: Strange Nikkor K 50mm f/1.4 artefact??
« Reply #40 on: August 11, 2018, 15:12:05 »

The strange patterned blooming and artefacts on her legs... is it just motion blur, even at 1/2000? Or interplay of some other things?


Hello. i believe thats aberration  :o :o :o

I took the K1 out for shooting some samples for the coming article and I can confirm that the K2 works better than the K1 at least in my samples. ::)

richardHaw

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #41 on: August 12, 2018, 08:02:19 »

Akira

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Re: Strange Nikkor K 50mm f/1.4 artefact??
« Reply #42 on: August 12, 2018, 09:48:09 »
I have a question. The strange patterned blooming and artefacts on her legs... is it just motion blur, even at 1/2000? Or interplay of some other things?

Looks like some kind of data artifact rather than an optical one...
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Akira

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #43 on: August 12, 2018, 09:48:46 »
Cinestill 800T

both from the K2. preparing a repair and review of the K1 because of this thread :o :o :o

Looks like PF flare.   :o :o :o
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Steven P.

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Re: Nikkor K 50mm f/1.4, opinions
« Reply #44 on: August 13, 2018, 21:18:05 »
As a much younger version of me, learning photography by books, the 50mm standard drove me to the point of hating them. (I. have close to a half dozen 50's scattered around the house.)

Thank You. This thread is quite informative. My best 50mm seems to be the K1 Version, reddish hue coating, which I Ai'd myself. It took a long time to figure out, but my copy's aperture stop down lever was/had been too wide.

Set wide open at F1.4, the camera would slam the lens' stop down lever, jar the lens & invoke (what would normally be called "Mirror Slap.") I had to lock the mirror up & shoot at a high shutter speed & did quite a bit of head scratching. (I carefully filed the lens' lever outdoors with a lot of puffs from my dust off can.)


Anyone else noticed this?