Petri 50mm f/2

Jozef M · Nov 28, 2021

Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

blåland · Nov 28, 2021

Jozef M said:
Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

If you want the special Petri Orikkor 50mm f/2 Kuribayashi C.C. 7 elements in 4 groups it has m42 mount and has become very expensive.

There is a newer version with a similar name with Petri bayonet mount that they used for a while with simpler design.

Then the last Petri cameras moved back to m42.

iTrax · Nov 28, 2021

Jozef M said:
Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

Petri had pretty good reputation during film time.

I have 55mm 1.8 ( with TTL body ) , it has M42 mount.

I Haven't touched it for ~ 25 years.

You can get M42 adapters to about anything.

I have M42 to PK ( Pentax ) , to E ( Sony ) , to X ( Fuji ) and Z ( Nikon).

Enjoy it.

E Dinkla · Nov 28, 2021

Jozef M said:
Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

https://spiral-m42.blogspot.com/2017/05/petri-camera-co-high-speed-petri-part-3.html

shows the odd optical design and the special bokeh it creates. That one has an M42 mount.

BTW, 10 blades iris too.

The only Petri lens I have is one refitted from a Petri 7 compact camera, a Petri 45mm 1.8 that has an 8 blades iris. Petri never was shy to add more blades than other Japanese compact camera manufacturers. Usually 5 or 6 blades in that category.

Met vriendelijke groet, Ernst
No photographer's gear list is complete without the printer mentioned !

Jozef M · Nov 28, 2021

Thank you for all the info!

But there are several types, I believe ... I can borrow this lens from my brother, he got his Petri SLR camera + 50 mm lens about in mid seventees ...

It is this lens:
https://www.apertureinfo.com/item/petri_50mm_f2.html

I'm a bit confused now.

Jozef.

Heritage Cameras · Nov 28, 2021

Jozef M said:
Thank you for all the info!

But there are several types, I believe ... I can borrow this lens from my brother, he got his Petri SLR camera + 50 mm lens about in mid seventees ...

It is this lens:
https://www.apertureinfo.com/item/petri_50mm_f2.html

I'm a bit confused now.

Jozef.

That lens is a Cosina, and was sold with the Cosina-made Petri GX cameras.

backsidewalkaround · Dec 2, 2021

Jozef M said:
Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

Petri is actually a very interesting firm. They used to make their own lenses and had great potential, I believe. Some time later they must have taken a few wrong turns, that led to giving up.

I've written an article about two "brothers" a while back, maybe it interests you:

About Petri lenses

Also I had a great japanese resource with excellent information about Petri. I will try to find the link and post it here, if you're interested.

Regards, Rolf

Jozef M · Dec 2, 2021

backsidewalkaround said:
Jozef M said:

Hello,

I don't know much about this standard lens.

Is it a M42 lens??? Are there (cheap) adapters for it to mount on Canon R, or on m4/3?
And is it worth it, is this lens sharp(isch) af f/2?
I saw some examples on flickr with a strange curly bokeh, quite interesting ...

Thank you!

Jozef.

Click to expand...

Petri is actually a very interesting firm. They used to make their own lenses and had great potential, I believe. Some time later they must have taken a few wrong turns, that led to giving up.
I've written an article about two "brothers" a while back, maybe it interests you:
About Petri lenses
Also I had a great japanese resource with excellent information about Petri. I will try to find the link and post it here, if you're interested.
Regards, Rolf

Ok, would be great, thanks.

Jozef.

Ching-Kuang Shene · Dec 2, 2021

I wrote about Petri's Flex 7 SLR years ago in Chinese. Here is the translated (by Google Translate) version. There were some very good books about Kuribayashi cameras and lens. This is one of them. Camera-Wiki has some information. I do have an excellent book but could not find it as of now.

CK

backsidewalkaround · Dec 3, 2021

I found it, here it is, unless you know japanese, you'd have to have it translated:

Petri resources

blåland · Dec 3, 2021

Here are some rare Petri lens diagrams.

backsidewalkaround · Dec 3, 2021

blåland said:
Here are some rare Petri lens diagrams.

These and much more can be found under the link I provided in the last post.

--
Flickr

E Dinkla · Dec 3, 2021

blåland said:
Here are some rare Petri lens diagrams.

I see including the Petri 7 45mm 1.7 lens diagram. Thank you. The 40mm 1.7 is probably also one of a Petri compact camera.

Met vriendelijke groet, Ernst
No photographer's gear list is complete without the printer mentioned !

blåland · Dec 3, 2021

backsidewalkaround said:
blåland said:

Here are some rare Petri lens diagrams.

Click to expand...

These and much more can be found under the link I provided in the last post.

That's probably the source of the drawings.
Here is the page if others are interested

ペトリの社内資料レンズデータ編 - petri @ ウィキ

元ペトリの技術者、半田善朗さんが保管されていた栗林/ペトリの社内資料の一部を掲載します。資料提供：半田善朗さん 60年代後半のペトリ製のレンズをほぼ全て網羅していると思われるデータシート。半田さん...

w-atwiki-jp.translate.goog

blåland · Dec 3, 2021

E Dinkla said:
blåland said:

Here are some rare Petri lens diagrams.

Click to expand...

I see including the Petri 7 45mm 1.7 lens diagram. Thank you. The 40mm 1.7 is probably also one of a Petri compact camera.

Met vriendelijke groet, Ernst
No photographer's gear list is complete without the printer mentioned !

Yes I have the 40mm lens removed and a complete Petri Computor II with that lens.
I will try to adapt it at some point.

backsidewalkaround · Dec 3, 2021

blåland said:
backsidewalkaround said:

blåland said:

Here are some rare Petri lens diagrams.

Click to expand...

These and much more can be found under the link I provided in the last post.

Click to expand...

That's probably the source of the drawings.
Here is the page if others are interested
https://w-atwiki-jp.translate.goog/petri/pages/308.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=sv

This is the direct link to many handbook, which I find very intersting too, scroll down to the SLR part:

Handbooks

--
Flickr

FrancoD · Dec 6, 2021

Jozef M said:
Thank you for all the info!

But there are several types, I believe ... I can borrow this lens from my brother, he got his Petri SLR camera + 50 mm lens about in mid seventees ...

It is this lens:
https://www.apertureinfo.com/item/petri_50mm_f2.html

I'm a bit confused now.

Jozef.

Just in case it wasn't clear, if your lens is one from a GX Petri, as commented by Heritage Cameras (the link does not work for me) it has really nothing to do with Petri, it is just a re-branding of the most re-badged camera ever . Cosina made that camera for many, many brands, Petri was just another one.

So no, that lens is not the one you are probably thinking of.

BTW, it's a Pentax PK mount.

Jozef M · Dec 7, 2021

FrancoD said:
Jozef M said:

Thank you for all the info!

But there are several types, I believe ... I can borrow this lens from my brother, he got his Petri SLR camera + 50 mm lens about in mid seventees ...

It is this lens:
https://www.apertureinfo.com/item/petri_50mm_f2.html

I'm a bit confused now.

Jozef.

Click to expand...

Just in case it wasn't clear, if your lens is one from a GX Petri, as commented by Heritage Cameras (the link does not work for me) it has really nothing to do with Petri, it is just a re-branding of the most re-badged camera ever . Cosina made that camera for many, many brands, Petri was just another one.

So no, that lens is not the one you are probably thinking of.

BTW, it's a Pentax PK mount.

Thank you, I'll check it out, I think the camera and lens is like this last photo. So, the lens is maybe not a M42 mount... ?

Jozef

FrancoD · Dec 7, 2021

If it is from a GX it is a Cosina PK mount lens . (PK as in Pentak bayonet).

Jozef M · Dec 7, 2021

FrancoD said:
If it is from a GX it is a Cosina PK mount lens . (PK as in Pentak bayonet).

No, this is not the camera or lens ...

Jozef.

Petri 50mm f/2

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