Author Topic: Rodenstock APO Ronar 150mm f/9  (Read 429 times)

Michael Erlewine

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Rodenstock APO Ronar 150mm f/9
« on: September 15, 2020, 16:23:37 »
Here is my first subject (Datura inoxia), a poisonous plant from the southwest. from a new large-format lens, the Rodenstock APO Ronar 150mm f/9. This is taken with the Nikon Z7 on the Cambo Actus Mini-B View-Camera.

The APO Ronar is a “Process Lens,” meaning it is a lens without a shutter which give a flat field of focus and is often used for copy work or macro photography. I would be using it for the later.

I find this a wickedly sharp lens and they are going for just a couple or a few hundred dollars, which is amazing to me. I am still looking for what’s wrong with it, but so far have not found anything.

Datura inoxia (Jimson weed) is a very poisonous plant (all parts of it) and is a powerful hallucinogen. Here one of its seed pods, having broken open, sheds seeds, only a few of which ingested would act as a powerful psychedelic.

My trip days are over, so I grow it for the beauty of the flowers (Moonflower) and the exquisite scent, reminding of the classic Night-Blooming Cereus from the Middle East, which I have been growing for maybe 40 years.

Here are a couple more with the Ronar.
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pluton

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #1 on: September 15, 2020, 18:53:57 »
Beautiful shot, Michael.  Aside from the well-done deep focus, the lighting is excellent.
Keith B., Santa Monica, CA, USA

Seapy

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #2 on: September 16, 2020, 01:17:15 »
Thank you Michael, are those straight single exposures or some stacking?  The rendering is superb.

I have just popped for one, very modestly priced in Germany.  My first APO lens!

Now I need an adaptor mount for the PB4...  Another lathe project.  ;D
Robert C. P.
South Cumbria, UK

Erik Lund

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #3 on: September 16, 2020, 09:57:24 »
Excellent! Very detailed even with these relative small jpg files
Erik Lund

Michael Erlewine

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #4 on: September 16, 2020, 10:33:43 »
These images are stacked using Zerene Stacker, for those interested.

Another Ronar image.
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Jakov Minić

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #5 on: September 16, 2020, 10:45:16 »
Dear Michael, these are spectacular!
Thanks for sharing!
Free your mind and your ass will follow. - George Clinton
Before I jump like monkey give me banana. - Fela Kuti
Confidence is what you have before you understand the problem. - Woody Allen

Michael Erlewine

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #6 on: September 16, 2020, 19:23:57 »
Here are a couple more,using the Ronar. The nasturtium flower (red-orange) is a very difficult flower to photograph, mostly because red is hard to get right. The Ronar did a good job of it.
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Toby

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #7 on: September 17, 2020, 03:01:06 »
There seem to be a bunch of APO process lenses from various companies floating around. I have not tried any, but perhaps there are truly bargains to be had if you don't mind a limited maximum aperture. I would like to point out that all cacti are New World plants, from the Americas. There are euphorbias from Africa, but they are a different thing entirely, while sometimes superficially resembling cacti. That they are grown all over the world is not in question, but they all hail originally from this side of the world.

Nasos Kosmas

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #8 on: September 17, 2020, 07:55:52 »
The nasturtium flower (red-orange) is a very difficult flower to photograph, mostly because red is hard to get right.
Michael excellent job!
This red-orange or other red-purple a very hard to get and it’s a mater of sensor
I thing Pentax or Fuji x-trans do a better job on this color

Tristin

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #9 on: September 17, 2020, 22:42:52 »
Stellar results, could the first image be rendered better?!?
-Tristin

Akira

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #10 on: September 18, 2020, 00:27:50 »
Love the morning glory glowing in the center!
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Michael Erlewine

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #11 on: September 18, 2020, 01:02:27 »
Stellar results, could the first image be rendered better?!?

Not sure which you mean by "first." If you mean the shot of the Datura seed pods that was the very first shot with the lens, perior.  Here is on a little more finished looking.
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Dr Klaus Schmitt

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #12 on: September 18, 2020, 09:21:30 »
Excellent shots Michael,seems to be a very capable lens!
That yellow flower is Rudbeckia flower from what I can see,
most likey Rudbeckia fulgida (it has a hidden UV pattern,
hence why I know it well), native to the US Midwest,
especially found in Prairie areas of Illinois.
formerly known as kds315

bobfriedman

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #13 on: September 18, 2020, 16:17:46 »
Echinacea perhaps?
Robert L Friedman, Massachusetts, USA
www.pbase.com/bobfriedman

Michael Erlewine

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Re: Rodenstock APO Ronar 150mm f/9
« Reply #14 on: Today at 12:10:35 »
MichaelErlewine.smugmug.com. Founder MacroStop.com, MichaelErlewine.com (articles), https://www.youtube.com/user/merlewine (video tutorials), All-Music Guide, All-Movie Guide, Classic Posters.com, Matrix Software, SpiritGrooves.net, DharmaGrooves.com