Yoshizen's Blog

Analog — Digital

Why such picture was heading the post “Analog — Digital”?    I guess most of the reader here has no idea what I meant, how this picture signify the Analog approach to stabilise the camera.  (To stop the vibration, instead to remove the cause, just forcibly gagging up, is quite an analog !)    The picture was a camera fitted with a modified chest-pod. (Because this mirrorless camera’s shutter shock was too much for their light-weight and small body, I needed to use such device to block the camera movement especially when I use almost weightless small Pentax 110 lens. —– that was the reason why Sony put the image stabilizer in the body for their new model.)

Till only a decade ago, there was many camera support / holder / bracket/ balancer to mount a cine camera which can eliminate / reduce the camera-shake.  All of them were using a clever design made with the counter balance / spring to stabilizing the camera when the cameraman was on the move.  So, when the camera was up and down, the counter balance or spring has to compensate the movement exactly the opposite direction = the camera’s weight / center of the gravity etc has to be carefully adjusted to the individual camera and its configuration. (when the lens was changed, the adjustment has to be done again from the start.)    But, when, the Gimbal came and took its position, it changed the whole story over night. 

The people are believing that the Gimbal was made with the Digital technology but they were not.  Gimbal was built while using the high-speed analog servo system.

Unlike popular misconception, digital system is slower than the analog system.  Any electronical system need to have the time to make it response.  Therefore, when the process has many stage, even the stage of just amplifying the signal, it takes certain time, which mean a delay.  And to drive high-power device, it need to drive them by higher current, and to do such drive, there needs to have several stage to increase the current though, with the development of high current semiconductor such as D-Mos, IGBT, etc, direct drive became possible without time delay.   Its mean, when the movement of the camera was detected downward, in the same moment, motor can move the camera upward.  Together with the development of such as a core less motor which can move instantly, the Gimbal was materialized.  And the same idea of  feedback control, the image stabilizer became very popular.

You might heard of the word “Digitizing depth of 12 bit or 16 bit” kind.  People might be thinking, 16 bit has 4 more bit data on top of 12 bit — was utterly wrong.  Say assuming the maximum output voltage from the image sensor was 1 volt. Then to measure 0.9999 Volt or 0.99991 volt in the detail of 1/16384 volt is by the 14 bit, 1/65535 volt is by the 16 bit depth. = The difference is how smaller its measurement would be divided. (imagine, the difference using inch or metric measure.)   In an A-D conversion, to measure in 16 bit, the reference voltage has to be increased 1/65535 volt each time and compared to the output voltage = count up to 65535 mean max 1 volt.  And to do this with its “Clock frequency” is all about digitizing process.  (Counting this to each three BGR (but actuary BGGR four) on 47 Mp is all about the imaging process.)   Yes in deed, it’s a lot of work !

So, in reality, Digital process is just a way to handle the electronic phenomena with counting measure — that’s all. (Save the additional implication / benefit etc)  Somewhat, the Stone-aged man handling the life, say I killed 200 kg deer with 2 kg axe, instead of saying I killed a big deer with my heavy axe.  —– how civilized our digitized mind is !  (The irony is, even if we could accurately measure, we still brandish an axe and kill = work is still the same. —– and even if the color was digitized into millions of individual color, our eyes can distinguish only 1000 colors = that was how jpg operates.)




Rather Blured image

Ultimately, on the photography, it is irrelevant to know the name of the camera.  Since, the matter is its end result = image.  (Yet still, if you want to know, those photos here were taken by the Kodak Vest Pocket Camera lens on the Sony A7R body.) 

(Incidentally, do you noticed that the guys behind the gate of the Downing street holding a machine-gun.) —– now you must be convinced, that they looks like holding one, —– don’t they ?   In deed they really looks like so.  (you know it’s all in your mind —– you are only seeing my dubious picture)   😀

So, we are seeing what we want to see.



Following the previous post, this is the even more enigmatic piece.   In fact, I just lost a word and got my jaw dropped.       I’m not sure, whether I can call it a dance —– or just an expression happen to be on the body ?

(The viz looks quite dark and mysterious, even nightmarish. —– and that’s I like) The Art in this level would negate all the question such as where it came from or even who made this.  Though, the harsh reality is, we may not able to see the same, after some years or decade as the body of the performer will be lost.   Without the body, its controlled movement and its moment, this art couldn’t exist. —– should we feel sad ?  —– the even harsher reality is, the memory, and its container = brain will be also rotten in the same time.    Who said art is long ? —– (Youtube viz may last longer —– yet it’s horrifying to image, after all the living things extinct, still those video data will remain as the electronic form like a fossil stone. 

Those two above were more like commercial dancing still showing some relation to the first piece.      (They are quite beautiful.)

What ? ? ?

Among the viz from the net, this is the one, made me puzzled the most. —– sound somewhat eastern Europe / gipsy ?  (the Brass sound even Mexican.    😀 )  —– Was this originated from southern India ? = it’s mean brought by the gipsy. —– then after many clicks, I discovered that, WITH MY AMAZEMENT, the music was  Polish folk-song.   Still, I don’t know where the style of the dancing came from, how the costume was designed etc.etc.  ? ? ?

(This one got only the same sound —– just give a hint of what they were !)

In the world, there are so many what we are completely out of imagination.


Banksy’s Art !

There was an auction in the Southbey in London.  A painting (or splayed stencil) of Banksy was said to be sold for a £ million.  Then, at once, the picture was shredded itself by a built-in shredder. 

—– there always somebody, much cooler person in this world ! 


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Procure a Bribe or Extortion ?

Following this story (extract from the letter to the Leader of the Council) ~~~

 ~ ~ ~ Because of the matter seems to be potentially explosive, I decided to write direct to you.

The matter is a behavior of one of your staff Ms. N * * * * resident officer of  * * * Estate.

This woman started to visit me a year ago.   Since I’m not a British (Japanese / Ex-Journalist), live in this country since 1975 alone, (and now I’m * * years old) she might be worrying about what could happen when I die. So, asking me my emergency contact again and again (more than 5 times while all of my relatives are in Japan therefore no point to repeat the same question if not a cynical joke mocking me “lonely death” ) (You can check her past entry to her tablet or the report to her so-called manager)

~ ~ ~  Yesterday (21st August 2018) she came again and made the same question with a pretext of a tenancy check. And asking me, if I found where to put my Art pieces, and said “Give me some” then started to mention that the fire and safety check would order to dispose my things as a fire hazard or obstruction to fire-escape, as I’m having a lot of half-finished sculptures or the material for those work. (On top of that, as I am a well-known photographer / camera critics, I got many cameras / collection of vintage cameras etc as well. )

Here the serious question is, is it your normal practice the council officer ask the tenant to give away their possession under the threat of “Fire check” while hinting an eviction ?

Isn’t this nothing but an extortion ? Or asking a bribery isn’t it ? ~ ~ ~

(It seemed that the Leader of the Council handed the matter to the Strategic Director of Housing — and from him to the senior (or manager) of above mentioned Ms.N**** )

So the man came to my place to talk about Ms.N’s “Give me” matter though he only managed to say an useless character reference “She is not a kind of woman to say like that.” = Of course she wouldn’t ask him a bribe = He is her boss, not a tenant.  The trouble was this man was a kind of person telling me that the dead room plant was caused by me kept open the window. (and exposed the plant to the outside sub-zero air ! = What an ability this man got to fabricate a story, what an imagination ! = If it was the case, the temperature indicator could have gone down to a single digit and able to make my freezing story far more dramatic. —– While using costly electric heater who need to open the window ! ) 

When I mentioned that the conversation has been sound recorded.  He said it’s not legal to record without a permission.  Yes, same as a security camera we can make a recording in our home unless it was made somebody else’s private moment like in the toilet.   As those council officers visit was a part of their official business, they can not claim a privacy.   Anyway, the officer’s words of Procurement of Bribery is in the public interest.  (Even a criminal evidence) 

And what this man could utter was the same intimidation, the Fire and Safety check against my possessions.   (I’ve been having the same possessions since I moved in here 17 years ago —– they only started to fuss about after Ms.N visited here a year ago = seemingly as a seer pretext of harassment. = And here it was used as a red herring. = The matter is not the safety issue but the Council Staff asking a bribe. )

So, there were few more Emails ~ ~ ~

~ ~ ~ Dear Ms.N * * * *  (22 Aug’)

Another day when you visited ~ ~ ~

Incidentally, about my art-pieces, you asked me “Don’t you sell ?”—– When you made this question, were you aware that those works has been listed on top of the Google’s search list (try such as >> St.Lucia, art figure    or  >> Yoshi, Zappa

Therefore, the value and the price of item may accordingly. So, your peculiar question to me “Give me” —– was this words made with the full knowledge of the situation which I afore said ?   Or were you ignorant to those matter ?

All the best

Yoshi ** * *

~ ~ ~ a mail from Ms.N to me (13 Sept’)

Please note that I find your allegation of asking you to “give me some” highly unacceptable.

I asked you whether you sold any of your pieces because you informed me you have a blog with many followers.

I have at no time asked you for anything what so ever.

I am happy for the council to investigate this matter fully.

~ ~ ~ ~

 ~ ~ ~ ~ to Ms.N * * * *  (14 Sept’)
Ho, if it was such “highly” unacceptable, why you didn’t say so when you visited me
and asked my phone number 5:00 Pm, yesterday ?
On that time, you had enough time to think while you waited me to fetch the number. 
You hadn’t been realized that the matter was such serious until you were told by your manager (may be today).
Since, you to say “Give me” was such natural reaction in your mind, you didn’t think about its seriousness at all till today.
I would say it too late for you to start to argue.  See the date of my Email to you = you had over 3 weeks to think.
If it was not true, you could have started the argument at once, couldn’t you ? ? ?
Yoshi * * * *

—– So, seemingly the battle goes on. (I wonder how they can argue and escape from this situation ? —– But as a matter of fact, the Council may not able to suck a rotten apple because of a resistance from the Trade Union ( = They would say, it is nothing wrong to receive a present as between a good friend = why she has to be singled out ?).   And the council boss may not lose his pension because of this, anyway.)   Further more, even if the fire safety chief ordered me to remove my possession, they wouldn’t take Court action to enforce it.  And neither me needs to follow.  = So, on the surface, the battle may just go on and rotten situation would just carry on = It’s a farce.       

—— I really wonder, isn’t any honest, decent people working in here ?  (Or is this an inherent culture in the south of  Themes ? —– as some cynics say = home-grown Banana Republic where a bribe is the local currency.   And as such, = superficially separated wife and the children as a self-proclaimed victim of a domestic violence,  get another flat at once together with a benefit,  then rented out one of the flat for a good money = every neighbors know it, council staff knows it, still no problem as everybody is a good friend. —– Once I staid such flat for a week. (I learned a lot.) The guy who owns it has yet another flat in the next council as well, with a different ID as a homeless.) 

The fundamental trouble here IS, even if somebody in the council suddenly developed a cancer and died, nothing would change = just other same kind will take over the job and the same situation goes on.  —– made me even more depressed. (That’s why not so many blue sky outside shot appeared in here, either no new sculpture created = other than the tinkered junk.)


Screen shot by Soft lens (2)

Mag COPY(1)_DSC0028

I found this pretty image in the net.  The original was much sharper, rather normal picture.  When I took screen copy using my homemade Mag lens, in order to avoid a moire, I gave a bit of off-focus.  It was a character of the Mag Lens, when it was off focused, the image suddenly increases the aberration thus, the image become nice soft picture.

Mag COPY(2)_DSC0024

This image was not as much as off focused like the first picture. (Just enough not to see the screen pixel, hence neither moire)

Mag COPY(3)_DSC0027

Then give a bit more off-focus.  —– Isn’t this picture looks more sexy ?  (Shame, I was not the photographer to see the lotus flower in the first place)

I think, now you were convinced to appreciate soft image !


非情 === 無心 ? ? ? (no mind in Soseki)

もう半世紀以上も前に読んだいい加減な気憶なのだが、夏目漱石の小説、門の中で僧侶が主人公に「禅の悟りとは非情なり」と説く場面がある。「非情とは道ばたで腸を晒して倒れている事すら平気でいられる心のことだ」と続ける。(これが正確な言い回しであったか自信は無いが)---この僧の言う非情とは俗に言ぅ無心の事だろうが(どこかの宗派では非情と訳しているのか? あるいは漢訳のどこかの教典に「情に非らず」といった表現が有ったのか?)








Norman the evil AI


With a commonsense, we think that the word or notion “Scientific” is a synonym to “Rational” and often (quite opportunistically) think its nature IS virtuous, while forgetting a lots of evil science like atomic bomb.  And believe that the ultimate intelligence / AI could solve all the problem of human being.  Though, same to the Great Nature, the Science and the Rationalism is value-free.  To see or use it for good or evil is completely up to us.  Now the Australian is desperately  wanting a stormy rain, even though it has been killing thousand of people in India.  The rain itself was caused and acting completely out of poor human emotion = simply, too much moisture in the air has to come down in any manner.  Even AI wouldn’t change this.  (May give better weather forecast though)  😀

AI or Artificial Intelligence will work based on the all the information and all the ideas or theories known to the human society (that’s what they says).  Then use all those data to generate the answer to the question.  (It’s a famous story, when a Chinese institute asked AI about their country,  the AI answered “You are silly to live in this country. Emigrate to Canada” — Chinese authority shut down the institute.)  So, people think that like the all-known God the AI can give the best and ultimate answer to human —– but it was found to be not necessary true. —– Like a poor human, even AI can not necessary be rational and virtuous = it could be fatally biased by the first information like us misjudge by the wrong first impression.

AI-Powered Psychopath — Report by MIT

We present you Norman, world’s first psychopath AI. Norman is born from the fact that the data that is used to teach a machine learning algorithm can significantly influence its behavior. So when people talk about AI algorithms being biased and unfair, the culprit is often not the algorithm itself, but the biased data that was fed to it. The same method can see very different things in an image, even sick things, if trained on the wrong (or, the right!) data set. Norman suffered from extended exposure to the darkest corners of Reddit, and represents a case study on the dangers of Artificial Intelligence gone wrong when biased data is used in machine learning algorithms.

Norman is an AI that is trained to perform image captioning; a popular deep learning method of generating a textual description of an image. We trained Norman on image captions from an infamous subreddit (the name is redacted due to its graphic content) that is dedicated to document and observe the disturbing reality of death. Then, we compared Norman’s responses with a standard image captioning neural network (trained on MSCOCO dataset) on Rorschach inkblots; a test that is used to detect underlying thought disorders.

Note: Due to the ethical concerns, we only introduced bias in terms of image captions from the subreddit which are later matched with randomly generated inkblots (therefore, no image of a real person dying was utilized in this experiment).


Browse what Norman sees, or help Norman to fix himself by taking our survey.

(Or, if you like to read the original article Google it ” norman-ai.mit.ac ” )
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Vest Pocket Lens on A7R

Vest'P(1)-DSC09764On here, the images of Vest Pocket lens from the field test.  (Give a close eyes to this photo and see how the details and rich tones are there ! —– by the way, the image looks a bit more greenish on iPad screen.)


—– If the image looks fuzzy, the lens was fully open (F6.6).  (But mind you, the original Vest Pocket camera’s image was 6×9, therefore we are only seeing its cropped center here.)



(They are the sample)   Left = F6.6 / Right = F11) — Pantograph was fully extended for close up.



(Amazingly sharp image together with nice halation of spherical aberration from the F6.6 Vest Pocket lens ! )







(This photo above, look the cobbles and see their blurred pattern —– but, on the small contact print of card-size image, who would notice it ? )




Well, Vest Pocket lens on the Sony A7R was the camera who took those photos though, behind of those, there were many more minutely blurred photos, seemed to be caused by the wobbly lens structure.  Otherwise, some photos were amazingly sharp, considering that they came from such old single glass lens !  (And it would rise a very serious question, that is, the great effort the manufacturer spending to create 10, 20 elements lenses using ED glass etc, what sort of practical significance was made ? —– of course, unless otherwise, there couldn’t be such as 14mm F1.8 lens or 18mm~400mm Zoom etc etc still, —– ? )     In reality, often, those expensive technical samples were made for demonstration purpose and made only 100 or so to display in their showroom.  In contrast to the millions of  18~55mm plastic kit lens.  Funny fact was, even after the people was made to believe that “the Larger the Better” myth suddenly changed into iPhone camera. —– It indicates that, so-called fine sharp image might be just a formality nobody actually bother. )


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