Yoshizen's Blog

Battery case

To use homemade device like LED ring light, we need a battery case. The battery case sold on the market is a kind, left on the photo above which is dreadfully cheaply made = unreliable and easy to break, yet cost a pound or so. — instead, I found a battery holder for Canon’s Motor drive, in the odds and ends box in the camera shop, of which cost also a pound or so (still having Canon quality). 😀

Battery holder of the motor drive were made for 10 AA battery, so, we can cut it to 3 battery size or 4 battery size. Then I mount a flash shoe which came from a junk flash light which is cheaper than a flash shoe adaptor, and a DC adaptor socket, and a register to limit the current.

For white LED, the battery got to be more than 3, then the current got to be about 50 mA for each LED = If 20 LEDs were parallel-connected — 50 mA x 20 = 1000 mA — for 4 AA battery design need 4.8/1 = 4.8OHM — some what 4.7OHM were needed.

The work itself was a kind of cut and glue still, the end result wasn’t too bad —– though, these days, you can find a ring light set from China ÂĢ15 which got a ready made battery case, even a stand comes together = To do what, is your choice = Its your life. —– I’m enjoying those games = puzzle to find the solution. And that is the beauty of DIY = Homemade !


W Lens-B

Thanks to the advancement of the technology and the use of the image recognition system etc, alongside the advancement of the optical design x optical plastic = we may find many usable aspherical lens in many devices.

So, I got a plastic lens and I made yet another W lens for my camera. —– using the same idea of 2 cutted half lenses put together.

The effect was more or less the same to W Lens-A but the bokeh is a bit more prominent.

Basically those lenses were designed for omnifocus, yet still a close-up extension ring works well. (omnifocus works only within a limit) 😀

Whether you like them or not I don’t care. I’m quite happy with them because, I feel that the image is much closer to what I’m living with. 😀


LED Macro Light

Such as 110 Instamatic Macro, when the magnification became larger, the focusing become increasingly difficult = simply its became too dark. Flashlight wouldn’t help focusing. —– So, I made a LED Macro Light for Instamatic Macro lens.

In fact, I made many LED Ring Light before and this one is so far the smallest of all.

The first one I made was not satisfactry and I needed to make another. (You may think that the LED has no problem of heat, but the LED’s efficiency to convert the electricity to light is only 40%, its mean, rest of elecricity all goes to the heat = LED is a 60% heat generator. With over current and the over heat, LED detriorate very quick = heat management is the key point of the design to use LED)

Photo left a LED, the left hand side is Kathode (-) why it is big was to disperse the heat. And the photo middle was the LED macro light which I made this time = its (-) side all together soldered to a center brass ring to disperse the heat.

Light distribution seemed OK (photo right). Though, the image of ring light is all ways boring. (Still, we can improvise them = such as to cover the one side LED using black-tape, etc.)


Further modification

As I mentioned on the previous post that the 110 instamatic macro lens needs the helicoid focusing —– I did the work.

Photo right showed the finished work together with 60 mm Extension ring = both Rear lens cap and a camera body cap were fixed to the left over can !

To put a focusing helicoid, the barrel (water can) was cut first (Photo left) The internal diameter of the can happen to be 64.5 mm which was about match to a 58 to 62 mm step-down ring = so, it was connected to a 25 to 55, 58 – 58 mount focusing helicoid from China. Then they were connected to the Nikon Z with 58 to NZ reverse adaptor. (Its mean, to use a 58 mm reverse ring, the lens can be connected to any other camera as well)

Here, everything was conveniently happened to match well. —– in this kind of the work, it is always the luck of “Happen to be” works. When you need, you may find coveniently matching component etc or got pretty good idea etc ( —– If it was not on your case, think about = you might be rued to the God in your life. ) 😀

Photo left = Helicoid was shortest 25 mm, Middle = Helicoid was 55 mm, Right = + 60 mm extension ring

With this modification, the size of the subject could vary from 6.5 mm to 9 mm (x5.5 ~ x4) (with extension ring 5 mm – x7) and the focusing became very easy. = I did Nice job.


Cicada ?

I don’t think we can see a cicada in this country —– other than a its tiny cousin called Froghopper. —– still, I never seen such highly decorated costume on them ! = I was very impressed !

The photo left showes the size on millimeter scale = about 6 mm. Note the size of her hind leg that was where her nickname Froghopper came from.

While tidying up the desk I found a small dead insect among the dust. For most of the eyes, this small bit may not have any significant meaning though, I came from the country where the noise of cicada singing fill the air of sommer all the time (even in Tokyo area) I wouldn’t miss “I know you well” —– the insect was not exactry a cicada but a kind of froghopper. Still, they got the typical same shape.

So, the 25 mm 110 Instamatic Camera lens, reverse mounted to the can which can give about x6 magnification = the result wasn’t too bad for a cost nothing junk —– (may be I should give a helicoid focus on top for a ease of focusing.)


W 1/2 lens

Here, [W] didn’t mean 2 indivisual lens. = Both of the half cutted lens. Ideally, the soft image should have the nice halo around the sharp core image —– if there was no sharp core image, it was just an obscure bad lens image. = So, how about the one lens was divided into two and the one half makes focused image and the other was making out of focus bokeh on the same one picture ?

From a Kodak (one time use ) Fun camera, the lens panell was cutted-out.

Cut an ordinary lens to optically functioning 2 separate half was not very easy. So, I did it with disposable (one time use) camera’s lens. = Cut it into half (Photo left) and mounted the one half to normal position and the other half to out of focus position (Photo middle). —– (Then I noticed that the lens I experimented makes rather nasty ring bokeh when it was out of focus —– I needed to search more.)

Photo Left was taken by the original single lens. Photo right was done by the W lens.

This W lens is efectively a w-focus lens. I experimented many w-focus image done by double exposure, or lens shift. But here I took a drastic approach to use cutted two halves lenses. —– I think, it wasn’t too bad idea. The work I took was rather awkward though on the end it was well rewarded. ( = I think —– anyhow, I got prenty one time use camera junk to try again and again 😀 )


Stabilize the Camera — Head Pod

This is yet another trick to stabilise the camera after chest pod —– or analog aproach to stabilise the camera.

Photo left is for right eye use, Photo right is for left eye use (Pod was reversed)

If you ever try to take picture of the flower in the very close-up way, without a tripod, you may well experienced an awkward trouble to hold or suspend the camera in the exact position. Image stabiliser may stop the shake of the camera in certain extent = say 0.1 mm shake or vibration though, no mechanism would help to stop your camera drifting — say 1 or 2 mm above the flower. Worse still, if you take picture while using LCD monitor, holding the camera in the air, you can’t make your hand like a solid wood. While your hand may drifting or sway, your head may not shake like your hands = so, why not stabilise the camera with your head. As a matter of fact, when you attach a flash light on the shoe, your fore head may resting on the back of the flash light, so the camera is much more stable. —– so, why not make something to rest on your fore head to stabilise the camera. = The prototype I made (in fact more than 30 years ago) works very well (but only on horizontal way and right eye use — for left eye use, the pod has to be reversed like a photo above right). (The metal piece itself was a simple cut out from a left over of a window frame, inserted into a plastic flash adaptor)


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Danjiri-matsuri – most dangerouse fest’ in Japan

It seems this fest’ in Kishiwada-city, Osaka is the most dangerous fest’ in Japan —– (after Onbashira fest’ in Suwa-city, Nagano.) (so far 38 death on the record)

Hundreds of the selected participant who might be even returned for fest’, from their work in the another city, pull the float and run to the Shinto Shrine while the float of each neighbourhood competing its speed and skillful control. (If the control wasn’t perfect, its 4 ton (4,000 Kg) float would fall or clash into the house and could make a casualty even a death.) (Each float said to be costed about 100 million yen and years to make)

(Some other Youtube viz of Kishiwada Danjiri, next to this may show the fall or the clash. ( the damaged house will be compensated by the City’s Danjiri insurance.)

Every year with the tens of the thousands of participants, 32 of those floats compating each other, it is nothing but the jaw dropping extreme culture of the Japanese.

—– You may wonder what drives those good grownups to do such crazy things. There is no obligation to the local people to participate, still no outsider was ever allowed to join for fun. It is strictly local afare. There wouldn’t be any fame beyond the own locals let alone any national competition kind = in other words, it is nothing but a gainless rusty local event. —– still, Strangely you may think, there is a hidden element of the Zen which is the backbone of the Japanese ethos here. = NO obligation to participate — yet still, the locals do aware a cause / Karma borne to be a man of Kishiwada = have to run with others, even if it could cost his limb even life itself. There is no glorious theory, story, high level thinking BUT just the humble act = run. — While the one is running, what mind in his head ? = NOTHING —– This nothingness is the ZEN. When Tsunami strike, what people think ? = NOTHING. Since there is nothing, neither grief nor panic = JUST live as normal (which was accustomed = これがåđģåļļåŋƒ). What you need more to live ?

While practicing hundreds of times, all the emotion had worn-out and only the attention to the control details (or the instraction programed into the body) remains = the one became almost like an automatic running machine. = DO as much for the fest’ forget any worry or arrogance.

Despite having nothing, still run, run for better. Regardless whether it looks crazy, if it brings any gain, if it is dangerous, still just run. Why ? —– Run for better ? to achieve something ? —– In fact achieve nothing. While having no mind and achive nothing, still run for better —– Why ? —– Because that IS what the Dharma’s work was prevailing.


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Owara Kaze-no-Bon / éĒĻãŪį›†

or, yet another Bon-Odori = annual dancing fest’ in Toyama-city, Ishikawa。

Yatsuo in Toyama city situated 100 km north east of Kyoto.

Kaze no Bon is a Japanese festival held every year from September 1 to 3 in Yatsuo, Toyama, Japan. Kaze-no-Bon literally translates to “Bon Dance of the Wind.” This festival, having a history of about 300 years, is recently becoming a popular tourist attraction to the otherwise sparsely populated mountain area. Wikipedia

Unlike well known Awa-odori which originated from far remoted Tosa in Shikoku island, Toyama’s Kaze-no-Bon dance is more elegant. (Though, I myself is more familier with Samba)


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O-M-G — Apple

OMG — the seeds started to germinate inside of fruit !

This photo was taken by a homemade lens called Yashica Macro. https://yoshizen.wordpress.com/2016/05/14/yashica-kyocera-macro-2/

This apple must be rather old — still, not started to rotten = must be sprayed with the strong chemical to make a long shelf-life. Still, the fruit itself has its own internal clock and timed for the moment to come-out.

Of course, the apple was not created to be eaten by a man let alone by Adam. In nature, the fruits will be fallen to the ground and the seeds germinates from its rotten but nutrition rich seeds bed. —– we are only intercepting their process and robbing their opportunity.

If you are “Pro-life” activist, you may plant this seed to a pot to grow an Apple tree —– but sorry Miss Apple, I’m not such tender person (in fact, I had too much trouble before to have too many such pots of plant) I’ll just throw you into a bin. (I’ve been killing too many lives, vegetables, fruits etc etc thrown into my cooking pan etc etc = too late to pretend to become tender hearted hypocrite.)


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