Yoshizen's Blog

Early Magnolia 2020

In this post, the photos were taken by a homemade lens Godo Lens, except no.4.
Those photos were taken by Tamron SP 90mm Macro on Nikon Z7.

I featured this flower twice (?) before using another fuzzy lenses. But, it seems the people takes the flower branch home there is no branch left on the lower part of the tree, and made me very difficult to take picture. (So, I needed to resort with something special measure. 😀 )


eBay fraud

On the face, eBay system was well designed and tightly operated —– That’s what I thought till I stumbled on this trouble. And while dealing with this trouble and went into deeper, I realised that the eBay was also very well designed as the system of the fraud.

When I wanted to buy a Pentax lens which happen to be sold by a Japanese seller, there was a mistake of misspelling of my name. (which was a mistype of “l” instead of “I”most likely made by a staff of Royal Mail = because Japanese (seller) knows Japanese name, such unpronouncable spelling couldn’t be made by them. – – – Anyway, because of the name was wrong, I couldn’t pay the import duty, therefore the item couldn’t be delivered to me, and sent back to Japan. As all those tracking data were clearly recorded, eBay ruled out, that I should be granted the full refund of the money I’ve paid, on the 17th Jan’2020 while saying it may takes 48 hours to appear on my bank account. (In the other refund case of which the amount of the money was less than a pound, refunded to my bank account was made only following day)

But, as no refund was made into my account even after a month, I started to feel suspicious. = I try to see how this kind of trouble was dealt with ? Then I discovered that the most of trouble which was likely occur in the net shopping was categolised and formatted to such as “item was broken” “Who pays return Post” etc etc though, there is no place to click “No refund was paid”. And no channel to make any complaint. There is NO customer service who will take care of the trouble. Neither they pick the phone. And even no address to send a complaint / inquiry letter. (in their website)

In the formatted question, clicking “Contact Paypal” goes to a blank page (photo right)

(There is so-called eBay community site where people can make a question etc and other member (?) answer / advice. Though, when I made a question on my case, it was disappeared alltogether while saying “System error” ! ) = (They got AI to watch and supress the inconvenient question)

Going through the net, I found the eBay.co.UK’s legal address in the Luxembourg. And, thier might be address = eBay UK, Hotham House, 1 Heron Sq’ South Richmond, Richmond-on-Thames, TW9 1EJ And a telephon number 0906-665-8030 (though, this phone is dead)

So, the eBay would say that there is no such things like “Refund money was not paid” could ever happened, therefore there is no need to foresee any remedy. But it might be a part of their system to make money. = in other words, the system of the fraud. That’s why, all the channel or the possibilities to make a complaint was tightly shut and heavily guarded.

(If anybody has the trouble with eBay, please give a comment here (which may not be published and answered by me privately)


Walk with Godo lens

Among my homemade lens, being as if it was almost ordinary lens, Godo lens is the most remarkable lens. There was no eccentric feature like 1/2, 1/4 lens kind but two ordinary unknown origins lens put together. (yet, one of them came from my friend Gordon = hence Godo lens ) And the lens happened to produce quite normal image (if not a lots of halation) together with quite nice softness. On top of that, thanks to a Chinese helicoid ring, good convenience of close up use.

I went back to the so-called Perpetual Cherry Tree and found that the area was in a construction site. (Tree was still there and seems flowering though)

I’m not sure whether they are bamboo or reed ?
I like a natural looks quality of this macro. (Too sharp image of most of macro makes the flower looks like an animal body parts) – – – Unless the one was a forensic scientist, we may not like to see too sharp detailed flower parts.

For the cost almost nothing homemade lens, I would say, this is the good lens.


Heaviest Gadget for 6×7

This is a homemade bellows for Pentax 6X7 camera, I made it 45 years ago. — ( I was working for botanical photography at the Uni’s Makino Herbarium then. Though, I was using more of 35mm Nikon camera – – – – since, Makino’s archive was 35mm Kodachrome and 6×7 camera was mostly for other journalistic subjects.)

This bellows’ solid structure does well stand against the heavy shutter, mirror shock though, the whole unit (with camera body) was too heavy to carry around = it never went out field. (For field work, I was using 135mm F4 Pentax 6×7 macro lens.)

So now, it is more like a technical sample or, industrial remain. 😀

( And in reality, this device didn’t under take the work much = theoretically it should be useful though, in practice, there isn’t much needs of tilt and shift, and in most of the case, the depth of the field of macro lens when it was stopped down, could cover the needs.)


Simple Arithmetic (2)

Was that the nature of Chinese electronics, I’m not sure, the LED ring light on a Z-light arm stop to work less than a month = switching control unit has brake down. Still, connecting the USB power direct, LED light itself can be light on. —– Then wait a moment. LED power is 5V, the Ring light was said to be 8W = its mean this lighting unit was designed somewhat for less than 2A (8W / 5V = 1.6A) (and anyway, the USB adaptor was 2A Max).

Connecting USB 5V direct to the LED light can be used though, it will be an over current to both LED and USB adaptor = soon they will be burnt out. To save the broken LED ring light, it is necessary to take a measure to limit the current = need to connect a resistor. To limit the current to 2A with 5V, we need a 2.5 Ohm resistor.

So, I connected 2.2 Ohm resistor (this type of resistor is getting harder to find though) (Why the wire of resistor was not cut short was, it get hot = need to disperce the heat) ( Note, for a sake of clarity, the photo was taken before applying insulation tape. )

With some improvisation, the LED light was rescued (though, without the brightness adjustment) —– I noticed that now, we can get the same LED light on Z-light arm for as cheap as £14 ! —– some of them may not break down. —– or am I expecting too much for £14 ? 😀


Simple Arithmetic

In the previous post, I mentioned the strength of the image and the size of the lens. When the inside-lens was 6mm and the outside was 14mm, of course the image made by the outside-lens would overwhelm the image of the inside-lens. The image made by the inside-lens will almost disappear like a halo caused by the dust.


We can calculate the area size of the lens = 3.14 x R x R – – – but we can see just the relative size as 6×6 against 14×14. In the 14×14=196, 6×6 was the inside-lens – – – 196 – 36 = 160 – – – 160 is obviously too much – – – it got to be about 72 (36+36) and the root of 72 = about 8.5mm – – – it’s mean, if the outside-lens was 8.5mm, the area of its ring shaped lens was the same to 6×6 inside-lens —– The image strength should be the same ! (The Bokeh image made by the inside-lens should be as strong as to the outside-lens’s sharper image.)

While restricting the 14mm to 8.5mm size, effect of the outside-lens was reduced = the inside-lens bokeh became more prominent.
This was not just fuzzy lens but rather sharp (kind of) lens and Bokeh lens conbined = therefore it has certain sharp (?) details.

How awkward = like a useless game of Sisyphus. – – – In fact, that was what all about the game I’ve been plying here = making the lenses.


And that was what Lord Buddha told to his disciple, for sweeping the garden to Shuri Pantak, knocking the door to Kisa Gotami. – – – – – Why not to me make the lenses. – – – Why not ?

I like the tone (color shift) of this picture. The watercolor paint which the brush was not well washed = its color has been fused or casted. 😀


Those images were made on the Nikon Z7 – – – I think, the softness was just right. (Soft mean, the neibouring pxel’s data were spilled out and infused each other hence the edge of the small details disappeared and the color mixed – – – how wide this infusion occur is the depth of the softness. Or the spread of the light. = Bokeh ! )

When the subject was good, any camera can make nice picture. 😀


Pla (B) Lens

Pla Lens (A) was somewhat a kind of flop in my try. —– Then, Zen wouldn’t give up. 😀 Why not to try with a different lens. Anyway, the luck is in a chance encounter (with a suitable character lens)

A lens I found was a single meniscus glass lens which can make the image like this photo —– of course, this lens could be mounted in the centre of much lager lens though, such large lens tend to have rather longer focal length etc etc. So, I decided to make a hole in the centre of this lens and put other one-time use camera lens in that hole. It took only 5 min’ when I made a hole in that plastic magnifier lens, but this time I had to drill a hole into a hard glass lens. If I push too hard, the glass will chip or worse clack altogether. = slow slowly work took half day.

The one-time use camera lens was pretty small. (I used only front lens ) Which makes the image like this. ( = unlike you expected, the centre lens produce the bokeh, and peripheral lens would creates detailed image. )

So, the concentric double lens was mounted on the camera = AND suprisingly, the image came out was rather normal. = the image was just fuzzy mediocre lens kind. (The size of centre lens was 6mm, Outer lens was 14mm which has 4.4 times larger area = in exposure level, the effect of 6mm lens was too small = negligible) (Yet still, the fuzziness wasn’t too bad even though it was far less than what I expected)

I need to get better subject —– image was somewhat similar to the Godo lens.

The fuzzy lens suite for the flower photo. Nobody complain. 😀


Pla Lens

Sorry to be too casual — Pla was a shorten of Plastic magnifier. I don’t remember how and when I got it. As I was looking for a lens which is large enough to accommodate a lens of one-time use camera kind, I just found it on a corner of my desk.

Pla on NZ7

Yet another fuzzy photo was a result of the newly created homemade lens, out of plastic magnifier and a one-time use camera. —– I have tested 1/2 lens, 1/4 lens kind though, they were the lens combined the out side of each other. = So, how about to try “Concentric two lenses” !

Godo on NZ7

(Incidentally, this photo was taken by a bit more ordinary (?) lens = Godo Lens.) —– You might say, when one lens can produce the image like this, why do we need yet another lens ?

The situation was more complicated = TO accommodate the other lens in concentric mean, I need to put another lens in the centre of a lens = It’s need to curve a hole in the centre. —– So, I improvised some tools to make a mini bench drill.

I just carried out the work = 10mm hole was drilled on the centre of Pla lens and a one-time use camera lens was inserted into the hole. Then the lens all together was mounted to the camera. It was mounted to the depth where one-time lens can make the focus = but too short to the Pla lens = hence, the resulting image was like the photo right.

(Ring shaped Bokeh was made by the Pla lens’s so-called “Ring Bokeh” caused by too out of focus lens. — it’s mean, even the “Bokeh lens” has to have about near focal length = out of focus may makes nice bokeh, but “too” out of focus may be too bad. 😀 )

So, this image was the worst among my homemade lenses ! 😀

A night sky —– anyway, we may not need much of details.

So, how about this ?

M m m m. —– It may need some improvement (I need to find the lens which can make softer Bokeh ! ) still, I like their paintary effects.

I can’t resist loving the image like this.


Is this ZEN or nuts ?

You may not guess what I’m going to talk. And don’t know what this is.

It was my life’s residure and its accumulation. The Lidl’s plastic tray of the Chicken.

I stopped to eat Beef 1987 when the BSE was reported. (It happen to be the same year, I also stopped any sexual contact when the first news of new diseases = later named to be AIDS was reported.) —– So, since then I only eat Chicken or fish, on top of veggie and fruits. Therefore, with my regular shopping of Chicken (about 1kg par week), those plastic trays are keep coming. —– as a kind of tempolary container, those trays are always conveniently in use still, much more trays are piling up. (If I were a good business person, I might have made a rule to limit the number of the trays in stock.)

If it was 10 or 20, nobody would bother. But when it accumulated to the hundreds, people may started to wonder — “Is it ZEN ?” — or nuts.

Number of ZEN stories are the story of the endless concentration and the result of the tenacious pursuit. = as a matter of fact, the practise in the Buddhism is nothing but the endless repetition of the same action. —– whether the matter or its purpose was the end result or in the process, its practise changes the person. So, its hard to tell, whether the continuous action was a part of ZEN practise or the problem of one’s own mental.

Then, if it was the case, how they related to the Buddhist mind of Detachment, No-clinging or live on the Impermanence kind. = you may feel the contradiction between here. —– Why you feel contradiction IS because your understanding of Detachment / Mushin = Mind of No-mind was wrong. This was the most common misunderstanding in the Buddhism. = Detachment / Mushin IS NOT an idea or thinking BUT they are the condition of the mind = like the mind was in an up-beat or sud state kind. I’m not thinking “Not to buy Beef” but I don’t see the beef there. (Not to buy Beef was not an ISM or thinking BUT it was the situation of “No beef was there”. ) So, no-one see the beef, because the one who see the beef / SELF is NOT there.

Because of, the people try to UNDERSTAND the Buddhist’s mind or try to think “That way” they can NOT get it. Buddhist’s mind IS NOT attained by intention. It has to BE in the state. When you are in, you can not aware that you are in.

So, the tray of Chicken keep accumulates —– without my conscious. I’m living without me aware that I’m living. I do, I eat , I speak what is natural to me. So, I don’t import anything foreign to my life. This IS what we call Buddhism. IF you THINK and TRY to practise Buddhism, it is NOT BUDDHISM. BUDDHISM has to reach without intention. While living as a Buddhist but forgot that you are a Buddhist, you are a Buddhist. In that state, even the SELF = you are, not existing.


I found a photo looks too iconic of the Japanese mentality ! This is what we meant “Go for all hog” —– this mentarity was behind the recovery from the earthquake disaster etc.

The young people attending the local ceremony to count that they reached to the adulthood on this year.


Godo Lens

The reason, why the sky was dull = not because the Godo lens but the sky was dull.

My friend / Cinematographer Gordon was clearing up his etc — and gave those junk to me. I don’t know how the man neither geek or otaku, managed to disassemble those, even without having tools — I didn’t ask.

What so ever the history or origin, the lens is a lens = only a matter for me IS whether it is “Usable”. —– Another day, a man offered me a very expensive industrial projection lens = more than 20cm diameter and 5kg heavy solid glass. I can guess, when it was made and sold, it must have 10 thousands pound price though —– ? what can I do with this ? —– once before, the line or graphics of the big industrial design was transeferred onto the iron material by optical projection, but now the digital technology and the laser took the work role. So, some of those old staffs may not stand even for a door stopper now.

If it was a converging lens, placing the lens on front of the camera (I mean, SLR body without a lens) and see the image. === in most of the case, the lens would show the good image only in the centre = in certain taste, the fuzzy surroundings may give a soft good atmosphere though may not necessary always.

Then give more test while stuck the lens on front of the focusing helicoid etc and try combine with other lens and so on etc for all sorts = and hundred of test click.

Since I got number of fuzzy lenses already, this time I picked one lens which has rather even image field (photo above) but as the angle of view was rather narrow, I added a diversing lens to widen its image field. ( You might be amazed to see, that the lens game can be played in such a casual manner — Yes, the game was not reserved only for Newton or Gauss kind of people)

Resulting lens was somewhat like this. = a bit strange lens. Never has any defined focus, nowhere is sharp nor anywhere is very blur.

So, makes your day always somewhat dull. 😀

This softness is more like a stocking over the lens. = the image looks like a reduced resolution image / Toy CCTV, otherwise the picture looks normal picture.

When the light doesn’t go where supporsed be, we call it aberration. But, in this case, not enough number of the light reaching and occupied each point, as a resolution. If this was the case, where the missing light has gone ? Is this an insoluble paradox isn’t it ? ? ? 😀


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