Yoshizen's Blog

PAXINA and its PAXANAR lens

Posted in Zen by yoshizen on February 25, 2022
(May be this might be the taste of the most of the people = bit higher speed = less shake)

Until I saw this camera : PAXINA I didn’t know such a camera existed. The camera seemed to be pre-war = Germany was not divided east and west, still the time already using 120 film.

The camera takes 6×6 size pictures on 120 film, while counting the number through back window. Shutter has a choce of B, 1/30th, 1/100th and the 3 holes give a F-aperture f7.7, f11 and f22 selection. The front unit (Photo middle) which got those shutter, iris mechanism together with the PAXANAR lens (seemingly focal length 75mm) with a focus (down to 1m) was fixed to the camera body by just 2 x 1.5mm screws. (typical German stingy design). Such a simple designed front unit imposes quite a difficulty when I try to attch the front unit to A7R4 via a M42 focusing helicoid. (Photo right)

The lens says ACHROMAT though, lookes like just a single lens was not sharp and showed chromatic aberration.

When the lens couldn’t give a clear focus, it is difficult to find the peak point. (Neither the camera A7R4 could give the Focus Indicator)

You may try to clean your specs. —— still, it may not so bad to have a “not very sharp image” 😀 —– We may need to rethink our obsession toward the image “the sharper the better”


Flowers by 3 Lenses

Posted in Zen by yoshizen on June 13, 2021

I took some pictures of the flowers in a green patch using three homemade lenses, nicknamed Pentax 110 Auto 24mm, CROMA Lens and Canon G10 element on Sony A7R-4.


As you might have guessed both Croma or C G10 lenses were not made to show sharp image but for my fun.


And, the image of Pentax 110 Auto 24mm = just for for a comparison.


Don’t ask me the name of those flowers = they were not for scientific references.


Ilford Sportsman Lens

Posted in Zen by yoshizen on February 21, 2022
Ilford Sportsman / Dignar 45mm f3.5

Ilford Sportsman Dignar Lens adapted to Sony A7R-4

This 60s camera seems to be the simplest designed 35mm film camera. Good contrast to a messy American Kodak, the front panel of this camera can be removed only unscrew 4 x 1.5mm screws. German does know how to simplify the structure. Yet still, thanks to the Pronter Vario shutter, it can give B to 1/200th speed and f3.5 to f16 Iris control.

Ilfo-45mm f3.5

What was remarkable about this camera was the quarity of its Dignar 45mm f3.5 lens. It was not the best kind, still quite good enough. 6 reflections inside of lens suggested that it might be a three lenses structure = triplet or tesser type design. And it said DACORA Kamerawerk Reutlingen —– you may find this town somewhere in Germany on Google map.

Pentax 110 Auto-24mm f2.8

To see the compalison, Photo here was the Pentax 110 Auto 24mm lens. (Naturally it doesn’t cover the full size image and it IS 24mm = small image though quality is exceptionally good)

Z Sonner 55mm f1,8

Then, this was the image of Zeiss Sonnar FE 55mm f1.8 Lens. This £500 lens ought to have an excerent resolution. And this was an auto focused image !

(This was an addition = to show the image quality of the Ilford Dignar 45mm f3.5 lens = Pretty good though, image was too prosaic =allmost no Out of focus Bokeh (even under fully opened f3.5) = That’s why it was “Sportsman” not for a Poet. 😀

Since I came across to the Sony A7R, I stopped to carry Nikon or Canon’s heavy body and lenses. = I become aware I’m not young enough to carry 60kg of photo gear together with studio flashs. Photo can be taken by any camera = even by a pinhole. And some adapted lenses can take as good as detailed photos with almost no cost ! This is, what SDGs means.


The Moon last night

Posted in Zen by yoshizen on December 24, 2021

Pretty late lest night, I saw a blight light in the sky. It was a moon few days after full. = So, I took some pictures with the lenses on the table. (It mean, even not bothered to fetch 500 mm lens not even open the double-grazed window or set a tripod. )

The lenses I used on the Sony A7R-4 were Zeiss Sonnar FE 55 mm f1.8 (Photo above left), Pentax 110 Auto 24 mm f2.8 (Centre photo) and THE Antic Agfa / Dopel-Anastigmat 13.5 cm f4.5 lens (photo right) —– Effectively, it was a kind of lens comparison though, the image of those photos were a tiny dot in the centre of the full size censor. (Something notable was, that the Zeiss FE lens managed autofocus to the Moon = not perfect still it did a cover to otherwise very difficult their manual focus)


Xmas window 2021 = Selfridge

Posted in Zen by yoshizen on December 21, 2021

They are the photos from the Selfridge Xmas windows. I took them after a visit of F&M, therefore the the equipment used were the same = See the previous F&M post for detail.

They are the lenses I used. (From the left = Chroma lens, Pinhole and a Fisheye adapter, Pentax 110 Auto 24 mm and Mag lens. Thanks goodness = being as the simple homemade, they are such small and right = all of them can go into one pocket. = It’s a fun to be with them. Ha ha ha 😀


F & M 2021 X’mas Window

Posted in Zen by yoshizen on December 21, 2021

This year’s Xmas window photo was taken on 20th December for both Fortnum & Mason and the Selfridge next by next. The camera used was Sony A7R4 and 4 of the homemade lenses. So that, if the photo showed rather normal sharp image, it was the Pentax 110 Auto 24 mm lens, like here on top photo.

And a Fisheye image like here was in fact, a 0.1mm pinhole + cheap fisheye adapter for mob camera.

This was a photo taken by the Pentax 110 Auto 24 mm. (but not very well focused here)

The left photo was simple pinhole image (ISO setting 12800, 1/5 sec ) and the right photo = with adapter.

Very fuzzy sorroundings was created by the “Mag Lens” originated from a small magnifier.

Some of the photos were taken by so called “Chroma lens” though, not so much distinguishable point but the edge of image some time shows the red chromatic aberration.

And so on. 😀 .

This last photo was by the Chroma lens = as you may see the red trim on the edge of the Angel.

Merry Xmas to the people who belive it (I’m not though)

How beautiful !

Posted in Zen by yoshizen on December 12, 2021

It’s almost an annual event. Since I live in the council flat, the Southwark Council is my landlord = so that there are many inevitable small business between us. = and their frontline = yet still the “Officer” seems not like me living in here / south of Thames / Council estate. ” Why he is living here ?” and making a nuisance in every possible pretext. —– The trouble (for them) is, —– I always fight back. —– in 60s, I was a protesters against Japanese-American Mutual Defense Treaty, as well as Anti Vietnam War, or here, I was an occupiers of the Cryistal Palace Park Anti Development Campaign. A suporter of Ken Livingston. And a Court fighter in the High Court and the Appeal Court as a Litigant in Person for 3 years battle. >>> https://yoshizen.wordpress.com/english-justice-or-not/

To make a complaint against the Council, we have to follow their system by lodging the complaint on their readymade form. (Looks well designed !) (Their telephone is a waste of time.)

How the system was well designed = was, We can’t send the Complaint as it start to say “Error”

When I try to have a screenshot with full text of the complaint, even screenshot was blocked. (It must be a very advanced Ai like program analysing the contents of the text, if it was injurious to the Council or not ? or, a hidden cord in the screen trigar the image process of the Canon camera jammed. ) ( If you can see the technic of this cord, please tell me on the comment.)

Since the attempt to lodge the complaint through their channel was blocked, instead, I trid to send the complaint (which has been saved to the Words) through their Custom Care mail box (csc@southwark.gov,uk), but the mail was failed of which the Google said that the csc@ address has fatal error. (the address was copied and pasted from their “Official Complaint” site.)

In general, to dodge the complaint / accusation was done by a more subtle or cunning way, BAT, to see it in such a straight direct manner gave me a rather flesh shock = Even a laugh ! (This must be the nature of the Southwark Council. —– or what the establishment is ? ? ? )

Happy peaceful Council, where no complaint from the people could ever exists. How beautiful ! ! !


Stepping Motor

Posted in Zen by yoshizen on September 26, 2021

While taking a stock, I’m finding so many unfinished work. (here, I mean unfinished kinetic sculptures ) Kinetic means, they move. Some people design a wooden winding up clock work though, I prefer to use electric motors and a mechanical metal structure. I used to use quite a few AC motors from the discarded fan or domestic kitchen ware though, to use the AC motors in the metal sculpture were not very safe = in fact they were the most hated object of the health and safety officials.

So, instead of AC motors, I changed them to the stepping motors from discarded printer. They comes in many different sizes and the shapes yet still, most of them work within the DC voltage of 5V to 24V = quite safe to handle. (So, I made many stepper driving circuits. Photo above —– Stepper is a motor = two coils pull the rotor magnet next by next = as soon as the magnet was pulled and moved near to the coil, next coil started to pull.) If you are interested in, just Google >Stepper driving circuit. or, >4030, 4013 Stepper driving circuit. ( = You may find many of the circuits using 4030, 4013 Chip and a NE555 which I used too —– 4030 and 4013 produces the pulse chain of one after another and the 555 gives the speed of them)

To drive a stepper, we need a timing pulse generator such as 555 and to produce the stepper driving pulse, 4030 and 4013 chip, then to drive the motor coils (in full-bridge or half) we needs power driver. Photo above middle may be 4013 and ULN2003 with 555 —– As a good counterpart, I found a small ready made board A4988 drive module (for 3D printer) which needs only an external timer(like a 555) and a switch for a direction. Photo right is a module which we can drive a stepper motor 5V~12V, up to 2A (LED was just to see the pulse speed) (in eBay x5 of them for £6 or so)

F-aperture of water dropped Canon G9 was driven by a 6mm stepper, so that 4 wire connection to an A4988 module I mentioned above can open, close the iris. (to connect those 4 wires to the module’s A1, B1, A2, B2 pin — find the order to make the iris blads work = try)

A fun part to use a 555 chip was, as its timing (frequency) was defined by a registor = it will be changed by a variable registor or even light dependent registor such as a CDS = Then, the stepper will move slowly when it is dark. 😀

This Stepper module was a lucky find of the day. Those x5 for £6 module all worked well (But the identical one with green board which I payed more was dead on arrival = that was what the Chinese product from eBay mean — We can not return the item which we have soldered wires and tested.) —– Even worse of Chinese business was = I bought PC fan 4 pin cable (which I can connect those driver board to stepper motor) from Banggood of China, but what I got was 3 pin cables. I contacted them through their complaint form (which they says “Respond within a day” ) = Nothing happened since. Then they sent me a mail saying that I didn’t answer them within a week (so, it will be out of time soon) — What ? They ARE the one who made a mistake = they ought to resolve the trouble. —– though, it’s mere £6 matter. Why bother. = No worth to spend a time. Just block their mail. (I alredy get the 4 pin cable from aother bender.)

—– what ever, I have to finish 2 more pieces of my work. (Banggood may want to keep £6 but I’m making a piece only one in the world)


Yaezakura by 2 lenses

Posted in Zen by yoshizen on April 20, 2021

The photos here were taken by the homemade lenses, either so-called ZM-2 (A lens came from somewhere a zoom lens) or C-G-10 (A lens originated from the focus lens unit of the Canon G-10 camera).

Both of them were the funny lenses —– if not funny, I wouldn’t to be bothered. 😀



Posted in Zen by yoshizen on March 23, 2021

What I found something strange was, that the size of the nut spanner sold on the market starts from 4mm. = it’s very hard to get 3mm nut spanner, not mention 2.6mm or 2mm ! Whatever the size of nut, if its location was awkward to access, we need to use a particular tool to handle it.

And if it was not on the market, why not to make one by ourself. It’s just a notch on the end of a stick. How about to make a cut on an old spoon. It would be cost nothing still, it must fill the needs for the task.

So, I did spend 2 hours of cutting job, making a notch on the end of a spoon. Then, tighten 4 of the 3mm screws in a 5 minutes work. (I never did the same work before, and may not do the same kind again in my life.) You believe or not, to face this moment = once in one’s life while dealing with it by a kind of approach = once in a life, IS the ZEN. (Face your life as the only life in your life, as every moment is the only moment in your life. — So, Lord Buddha suggested Kisa Gotami to seek mustard seeds, and the Rinzai master asked a question expecting the answer of never heard before kind.) We don’t need to think anything but just see a spoon and cut a notch by filing, filing, filing down the tail of it, = was the ZEN. (To deal only with a real existence = not play with any abstract notion or imagination, but just deal it with a real action = You can not live your life while imagining it, but only with real action)

—– I woul d say, I did a good job. It’s great to have a spoon like this. This must be an only a spoon in the history, a kind which can tighten a nut as well. Ha Ha Ha. 😀


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