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yuzroz · 05-22-2019, 08:49 AM - **2 Likes**

I don't know anything about this lens, but it seems the guy in Japanese forum has.

https://bbs.kakaku.com/bbs/K0000820870/SortID=19581687/

pschlute · 05-22-2019, 09:08 AM - **5 Likes**

Originally posted by yuzroz

I don't know anything about this lens, but it seems the guy in Japanese forum has.

Please be careful. Some here may have an undiagnosed heart condition.

**pentaxus** · 05-22-2019, 09:25 AM

I remember when it was announced. Then nothing.....

**gofour3** · 05-22-2019, 10:13 AM

Originally posted by yuzroz

don't know anything about this lens, but it seems the guy in Japanese forum has.

Looks like someone has a copy in Japan. Would be nice to see it in person.

Phil.

**From1980** · 05-22-2019, 04:07 PM - **1 Like**

Originally posted by gofour3

Looks like someone has a copy in Japan. Would be nice to see it in person.

Phil.

Right, he could sell tickets to see it. Purchase would cost a mortgage on your home.

D1N0 · 05-23-2019, 06:23 AM

There were at least 7 prototypes. This must be one of them.

side view:

Ontarian50 · 05-23-2019, 07:17 AM - **5 Likes**

Originally posted by Paul the Sunman

Is it too late to put it into production?

Not without a quick re-design to bring it up to snuff for 21st century pixel peepers, methinks.

Eleven elements won't cut it today. How about a 35-element formula with a barrel the size of a large coffee can (and weighs as if it's filled with ice cream)? A 105mm front filter size should be enough to convince us it's to be taken seriously. Anything less, and ... well, how's the micro contrast and bokeh going to be any good?

Once the pre-production prototypes show the thing is truly massive enough to justify its lofty price tag, then it will be good enough to bayonet onto some skinny full-frame mirrorless body for "street photography".

D1N0 · 05-23-2019, 07:49 AM

I think that by the time it was ready, photography had moved on to smaller more portable lenses, hence the m-series.

zapp · 05-25-2019, 06:07 AM

1976... performance wide open was probably the main problem. Or production too expensive/difficult. The idea of a 1.4/20 is still interesting for that year. The Ermanox of Pentax.

**gofour3** · 05-25-2019, 08:31 AM

Originally posted by zapp

1976... performance wide open was probably the main problem. Or production too expensive/difficult. The idea of a 1.4/20 is still interesting for that year. The Ermanox of Pentax.

Yeah it had aspherical element(s), so it would have been expensive like the K28/2, which had floating elements. The K28/2 is good wide open, so the K20/1.4AL probably would be the same.

Phil.

Japanese guy · 01-06-2020, 04:52 PM - **4 Likes**

I have this one.

OoKU · 01-06-2020, 05:29 PM

Originally posted by Japanese guy

I have this one.

Can you post some samples？

**BigMackCam** · 01-06-2020, 05:33 PM - **1 Like**

Originally posted by Japanese guy

I have this one.

Originally posted by OoKU

Can you post some samples？

Agreed, I'd love to see some sample photos from the lens too. Very interested to see the rendering...

krazykat · 01-06-2020, 06:01 PM

Originally posted by Japanese guy

I have this one.

Wow! I would love to see some sample pictures!

**mlt** · 01-06-2020, 06:36 PM - **1 Like**

See all the white space below his “ I have this one “ comment, that was probably his test shot of a white wall

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05-22-2019, 08:49 AM - 2 Likes	#16
yuzroz New Member Join Date: Aug 2017 Location: Tokyo Posts: 10	I don't know anything about this lens, but it seems the guy in Japanese forum has. https://bbs.kakaku.com/bbs/K0000820870/SortID=19581687/

05-22-2019, 09:08 AM - 5 Likes	#17
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,219	Originally posted by yuzroz I don't know anything about this lens, but it seems the guy in Japanese forum has. Please be careful. Some here may have an undiagnosed heart condition.

05-22-2019, 09:25 AM	#18
pentaxus Site Supporter Join Date: Jun 2010 Location: Central Coast, CA Posts: 1,320	I remember when it was announced. Then nothing.....

05-22-2019, 10:13 AM	#19
gofour3 Site Supporter Join Date: Oct 2008 Location: Vancouver, Canada Posts: 8,093	Originally posted by yuzroz don't know anything about this lens, but it seems the guy in Japanese forum has. Looks like someone has a copy in Japan. Would be nice to see it in person. Phil.

05-22-2019, 04:07 PM - 1 Like	#20
From1980 Site Supporter Join Date: Dec 2012 Location: Essex, Ontario Posts: 682	Originally posted by gofour3 Looks like someone has a copy in Japan. Would be nice to see it in person. Phil. Right, he could sell tickets to see it. Purchase would cost a mortgage on your home.

05-23-2019, 06:23 AM	#21
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802 Original Poster	There were at least 7 prototypes. This must be one of them. side view:

05-23-2019, 07:17 AM - 5 Likes	#22
Ontarian50 Veteran Member Join Date: Mar 2015 Posts: 530	Originally posted by Paul the Sunman Is it too late to put it into production? Not without a quick re-design to bring it up to snuff for 21st century pixel peepers, methinks. Eleven elements won't cut it today. How about a 35-element formula with a barrel the size of a large coffee can (and weighs as if it's filled with ice cream)? A 105mm front filter size should be enough to convince us it's to be taken seriously. Anything less, and ... well, how's the micro contrast and bokeh going to be any good? Once the pre-production prototypes show the thing is truly massive enough to justify its lofty price tag, then it will be good enough to bayonet onto some skinny full-frame mirrorless body for "street photography".

05-23-2019, 07:49 AM	#23
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802 Original Poster	I think that by the time it was ready, photography had moved on to smaller more portable lenses, hence the m-series.

05-25-2019, 06:07 AM	#24
zapp Pentaxian Join Date: Jul 2011 Posts: 2,389	1976... performance wide open was probably the main problem. Or production too expensive/difficult. The idea of a 1.4/20 is still interesting for that year. The Ermanox of Pentax.

05-25-2019, 08:31 AM	#25
gofour3 Site Supporter Join Date: Oct 2008 Location: Vancouver, Canada Posts: 8,093	Originally posted by zapp 1976... performance wide open was probably the main problem. Or production too expensive/difficult. The idea of a 1.4/20 is still interesting for that year. The Ermanox of Pentax. Yeah it had aspherical element(s), so it would have been expensive like the K28/2, which had floating elements. The K28/2 is good wide open, so the K20/1.4AL probably would be the same. Phil.

01-06-2020, 04:52 PM - 4 Likes	#26
Japanese guy New Member Join Date: Jan 2020 Posts: 5	I have this one.

01-06-2020, 05:29 PM	#27
OoKU Pentaxian Join Date: Dec 2015 Posts: 740	Originally posted by Japanese guy I have this one. Can you post some samples？

01-06-2020, 05:33 PM - 1 Like	#28
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,704	Originally posted by Japanese guy I have this one. Originally posted by OoKU Can you post some samples？ Agreed, I'd love to see some sample photos from the lens too. Very interested to see the rendering...

01-06-2020, 06:01 PM	#29
krazykat Veteran Member Join Date: Aug 2010 Posts: 546	Originally posted by Japanese guy I have this one. Wow! I would love to see some sample pictures!

01-06-2020, 06:36 PM - 1 Like	#30
mlt Site Supporter Join Date: Dec 2007 Posts: 1,159	See all the white space below his “ I have this one “ comment, that was probably his test shot of a white wall

SMC Pentax K 20mm f/1.4?

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