Nikkor-SC 55mm f1.2

**pepperberry farm** · 08-16-2020, 05:36 AM - **2 Likes**

this is a pre-AI lens that was purchased for use on my K-S1a project:

for comparison purposes, this is the Cosina 55/1.2 on the right:

and how it looks on the K-S1a:

**pepperberry farm** · 08-16-2020, 05:37 AM - **2 Likes**

at f1.2

I'll be working with this lens at this aperture more in the next week or two....

**pepperberry farm** · 08-16-2020, 05:38 AM - **2 Likes**

**pepperberry farm** · 08-16-2020, 05:41 AM - **1 Like**

**pepperberry farm** · 08-16-2020, 05:42 AM - **2 Likes**

and even infinity focus - which has been a concern with this project

krazykat · 08-16-2020, 05:42 AM - **1 Like**

Very nice!

**pepperberry farm** · 08-16-2020, 05:43 AM - **1 Like**

**pepperberry farm** · 08-16-2020, 05:43 AM

Originally posted by krazykat

Very nice!

thank you

**UncleVanya** · 08-16-2020, 07:49 AM - **1 Like**

In theory you should hit infinity early and be able to focus slightly past infinity. Are you finding this is the case? With the very slight differences in flange focal distance if expect the lens might have enough internal adjustment to reset infinity into line up correctly even if you mount it directly into a standard Pentax mount. (this can be done with non ai Nikon lenses but isn't very secure)

**pepperberry farm** · 08-16-2020, 10:48 AM

Originally posted by UncleVanya

In theory you should hit infinity early and be able to focus slightly past infinity. Are you finding this is the case? With the very slight differences in flange focal distance if expect the lens might have enough internal adjustment to reset infinity into line up correctly even if you mount it directly into a standard Pentax mount. (this can be done with non ai Nikon lenses but isn't very secure)

no theory - this lens will focus beyond infinity....

funny thing in comparing the mount of this lens with the prior Nikkor (35/2) on the K-S1a: this lens will turn almost all the way on the mount to where 'normal' would be for a K-mount lens, while the 35/2 will stop (hard stop) about 2/3rds of the way around....

pathdoc · 08-16-2020, 12:45 PM - **1 Like**

Originally posted by pepperberry farm

for comparison purposes, this is the Cosina 55/1.2 on the right:

Mmmm, cookies!

**pepperberry farm** · 08-16-2020, 01:32 PM

Originally posted by pathdoc

Mmmm, cookies!

aye - cookies!

**UncleVanya** · 08-16-2020, 06:09 PM

Originally posted by pepperberry farm

funny thing in comparing the mount of this lens with the prior Nikkor (35/2) on the K-S1a: this lens will turn almost all the way on the mount to where 'normal' would be for a K-mount lens, while the 35/2 will stop (hard stop) about 2/3rds of the way around....

That is odd.

**.a.t.** · 08-16-2020, 06:36 PM - **1 Like**

Originally posted by pepperberry farm

this is a pre-AI lens that was purchased for use on my K-S1a project:

How's the feel of the aperture ring? And is there an unmarked stop (or two?) between 1.2 and 2?

Originally posted by pepperberry farm

. . .
curious horses
https://www.flickr.com/photos/pepperberryfarm/50229300682/

Lovely! But I'm greedy, so I can't help but wonder how that pasture scene would've looked through a 300mm (or 500mm!) lens.
Do you think those horses would come back and pose again? Maybe they like cookies?

Also, when I look at your photo I can hear Paul Simon singing about ♫ ...the greens of summers...♫.
I wonder if Mr. Simon ever used a 55 f/1.2 with his Nikon?

You Tube

**pepperberry farm** · 08-16-2020, 07:57 PM

Originally posted by .a.t.

How's the feel of the aperture ring? And is there an unmarked stop (or two?) between 1.2 and 2?

tiny detents for the aperture stops - and there is one unmarked stop between 2 and 1.2...

Quote:

Lovely! But I'm greedy, so I can't help but wonder how that pasture scene would've looked through a 300mm (or 500mm!) lens.
Do you think those horses would come back and pose again? Maybe they like cookies?

Also, when I look at your photo I can hear Paul Simon singing about ♫ ...the greens of summers...♫.
I wonder if Mr. Simon ever used a 55 f/1.2 with his Nikon?

Paul Simon - Kodachrome (HQ) - YouTube

I'll bet he never had a 55/1.2 on his Pentax...

(:

08-16-2020, 05:36 AM - 2 Likes	#1
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678	Nikkor-SC 55mm f1.2 this is a pre-AI lens that was purchased for use on my K-S1a project: for comparison purposes, this is the Cosina 55/1.2 on the right: and how it looks on the K-S1a:

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08-16-2020, 05:37 AM - 2 Likes	#2
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	at f1.2 I'll be working with this lens at this aperture more in the next week or two....

08-16-2020, 05:38 AM - 2 Likes	#3
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster

08-16-2020, 05:41 AM - 1 Like	#4
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster

08-16-2020, 05:42 AM - 2 Likes	#5
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	and even infinity focus - which has been a concern with this project

08-16-2020, 05:42 AM - 1 Like	#6
krazykat Veteran Member Join Date: Aug 2010 Posts: 546	Very nice!

08-16-2020, 05:43 AM - 1 Like	#7
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster

08-16-2020, 05:43 AM	#8
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	Originally posted by krazykat Very nice! thank you

08-16-2020, 07:49 AM - 1 Like	#9
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,404	In theory you should hit infinity early and be able to focus slightly past infinity. Are you finding this is the case? With the very slight differences in flange focal distance if expect the lens might have enough internal adjustment to reset infinity into line up correctly even if you mount it directly into a standard Pentax mount. (this can be done with non ai Nikon lenses but isn't very secure)

08-16-2020, 10:48 AM	#10
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	Originally posted by UncleVanya In theory you should hit infinity early and be able to focus slightly past infinity. Are you finding this is the case? With the very slight differences in flange focal distance if expect the lens might have enough internal adjustment to reset infinity into line up correctly even if you mount it directly into a standard Pentax mount. (this can be done with non ai Nikon lenses but isn't very secure) no theory - this lens will focus beyond infinity.... funny thing in comparing the mount of this lens with the prior Nikkor (35/2) on the K-S1a: this lens will turn almost all the way on the mount to where 'normal' would be for a K-mount lens, while the 35/2 will stop (hard stop) about 2/3rds of the way around....

08-16-2020, 12:45 PM - 1 Like	#11
pathdoc Pentaxian Join Date: Mar 2015 Photos: Gallery \| Albums Posts: 6,381	Originally posted by pepperberry farm for comparison purposes, this is the Cosina 55/1.2 on the right: Mmmm, cookies!

08-16-2020, 01:32 PM	#12
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	Originally posted by pathdoc Mmmm, cookies! aye - cookies!

08-16-2020, 06:09 PM	#13
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,404	Originally posted by pepperberry farm funny thing in comparing the mount of this lens with the prior Nikkor (35/2) on the K-S1a: this lens will turn almost all the way on the mount to where 'normal' would be for a K-mount lens, while the 35/2 will stop (hard stop) about 2/3rds of the way around.... That is odd.

08-16-2020, 07:57 PM	#15
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,678 Original Poster	Originally posted by .a.t. How's the feel of the aperture ring? And is there an unmarked stop (or two?) between 1.2 and 2? tiny detents for the aperture stops - and there is one unmarked stop between 2 and 1.2... Quote: Lovely! But I'm greedy, so I can't help but wonder how that pasture scene would've looked through a 300mm (or 500mm!) lens. Do you think those horses would come back and pose again? Maybe they like cookies? Also, when I look at your photo I can hear Paul Simon singing about ♫ ...the greens of summers...♫. I wonder if Mr. Simon ever used a 55 f/1.2 with his Nikon? Paul Simon - Kodachrome (HQ) - YouTube I'll bet he never had a 55/1.2 on his Pentax... (: