Yoshizen's Blog

It’s the Gaudy Lens

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I developped 10s of devices/lenses to obtain painting like fuzzy effect

— and so far this gaudy lens seemed to be the best device for the job.

No filter or attachment available on the market  nor digital

manipuration can make the same effect.

(simplly nobody else needed => no manifacturer wanted to make)

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So, I’m enjoying a dance alone in the middle of nowhere.   😀

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The best things of this gaudy lens is, its balance of fuzzyness

and the ability to retain a certain details of the image.

(In fact, I can controle it by the size of paper hole/iris and

the amount of over-exposure/halation = so, it is not

like a wild animal of DD-Pinhole)  Ha ha ha  😀

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Lens (?) Comparison

 

Twist Meadow-1-A09A5796Photo above was the picture taken by the “Twisted Lens”

Gaudy Lens

Gaudy Lens

The same flower meadow was taken by the “Gaudy Lens”

for the comparison of Fuzzy effect.

2 Element Toy Lens

2 Element Toy Lens

Effect looks very similar to Gaudy Lens though, this

is a lens originated from a Toy camera + added

concave lens on front (= effectively a Retrofocus structure)

— advantage of this lens is its omuni-focus design.

Double Density Pinhole

Double Density Pinhole

And this one was taken by the Double Density Pinhole.

Mono-Pinhole

Mono-Pinhole

But this one was by the simple Mono-Pinhole.

Tri-Pinholes

Tri-Pinholes

Then, how about Tri-Pinhole !    🙂

Double Density Pinhole

Double Density Pinhole

Different angles by the DD-Pinhole.

Double Density Pinhole

Double Density Pinhole

This photo showes the flowers in the green, between the houses.

= nothing special.

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Meadow by Twisted Lens

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This was the first field test of the so-called

Twisted Lens = Two convex lenses stacked on a bellows.

As the lens was on a bellows they were easily

re-positioned = so, the effect of blur was adjusted.

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As the lens was on the bellows, they were rather awkward

to use, nevertheless it managed to produce the photos.

You might wonder why I fuss about such fuzzy images =

The reason is, in our eyes we may not seeing sharp clear

images — they might be the brain re-constructed image.

(Remember, we never see straight line with rownd eye balls

— straight line IS the re-construction in the brain) 

That’s why we are surprised and impressed by the sharp

clear photos, same as when we see a detailed close-up

photo of an insect which we can’t see otherwise.

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Twisted Lens

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Lens in the optical devices must be placed exactly parallel and

having its axis in the dead center. —– That was what I thought.

But the photo above may demonstrate otherwise.

It was taken by the casually improvised 2 convex lens = one was

the rear element of Canon EF Zoom 28~70 and the other —–

thin convex lens from  somewhere.  And those lenses were

temporally stacked on front of bellows on DSLR body.  I expected

to see rather blurred poor image though, much of my surprise,

even annoyance, that lens produced pretty decent image.

= They were 2 convex lenses = even not an achromatic

convex-concave structure, still shows no chromatic aberration.

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It’s not fare !  Why cheap junk couldn’t produce junk image ?

So, I mounted those two lenses in angle = say one lens got

its top downward and the other was its bottom upward. 

(Ref; center of collage photo bellow)

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Front lens was off the axis 15° and the other (inside) was 10°.

Though, the image was NOT destroyed. (Like a photo above)

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The image here was almost intentionally created blurred

image made by the Twisted lens mounted on a bellows.

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The photo here gave rather requisite over soft image.  😀

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The photo above left is the same “Test shot”

Center photo shows how the Lens were mounted.

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Now you must be convinced that the myth of precise

engineering of optics may not necessary be true.  

(That’s the reason how manufacturer produce flimsy

plastic zoom lens without showing any hesitation.)

 

A09A5742PS :     Later, I noticed that the rear element of

Canon Zoom showed 3 internal reflection and

a Newton-ring = they are the indication of that

the optics was the 2 element construction =

convex and concave lenses stacked together =

achromatic design.

(= that’s why the images had no chromatic aberration)

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Takumi

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At the Wireless Wednesday gathering in Greenwich, we had

2 laptops to repair.  One was a quite hi-spec Dell which needed

to change a HDD and the other was HP. 

Dell needed to completely disassemble to see the back of mother

board = so many screws had to be removed, and the cables had

to be disconnected etc etc.

—– Then, when two of the cables to Wi-fi module needed to be

re-connected, the guy who has been dealing with this kind of

the work very well, couldn’t manage to insert the connector,

and neither the other guy managed to do too. — strange ? ? ?

Takumi-4-001

The cables to Wi-fi module were not simple power wire kind but

the hi-frequency coaxial cables.   So, the connecting post was not a

simple metal stud but a coaxial connector and the male connector

has to be inserted exactly parallel to the female counter part,

otherwise the needle thin center pin would be broken.

—– While watching them try, I found their finger couldn’t keep

the cable straight, neither the finger pushing it is steady.

= So, it was the time for the Zen Buddhist to join the game.

And the cables were safely connected.   😀

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When earthquake struck Kumamoto,  Japan,  quite few hi-tech

company there had to close and it sent a shiver to many other

manufacturers in the world.  Such as Sony has their factory for

image sensor there = if it’s production stopped and the export

delayed, the production of iPhone in China would be stopped.

(Swedish camera manufacturer Hasselblad had to postporn the

sale of their medium format camera H6D, because the production

of 100 Mp image sensor  in  Sony, Kumamoto  was disrupted —

in fact, 80% 0f digital camera in the world relying on Sony)

When China got their industrial development,  they took over

the top position of manufacturing business — that they thought.

— While ago, China’s Premier Lee Karchan was so annoyed to

find that they needed to import even a ball of ball-point pen.

In deed, 60% of  iPhone was made by the Japanese components =

the components of which China couldn’t make by themselves

even when they bought and used the same machine.

So the world started to pay an attention,  Why only Japanese got a

skill to make certain component or device, and started to talk about

the Takumi (匠), such as the Mind-set of Takumi, Skill of Takumi.

(Takumi mean, the Master of something) —– the economists,

industrialists etc talking a lots about the Takumi though so far non

of them seemed to be aware of the sublimated tradition of the Zen.

When a craftsman (even an engineer) try to learn, they try it again

and again and develop a state of concentration of the mind = this is

a condition what Zen Buddhists call Mushin.  Since the concentration

in Mushin is to vacate the brain, not push high tension to the mind,

such as the blood pressure,  testosterone level doesn’t go high = able to

keep the mind and the hands calm and steady.  (= able to do the job

without an emotion or any useless thought.)

= And this was the way to use the tool and in control in making.

So, this IS what the Takumi doing.

___/\___

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Yashica-Kyocera Macro (2)

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Those two photos were the x6 shot of the Butterfly Wing.

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As I described in the old post I made this lens last November

— and now, it is the time to take it out or find a good subject

to shoot on a table top.

Any how, it was a broken 38~115 mm Zoom Film camera of

Yashica-Kyocera.

To disassemble the camera is a brain game = Which screw,

where to start is quite crucial to have an easy game though,

even if you were completely wrong and made a mess, not much

damage would be done, nothing to lose but a bit of Ego.  😀

Yashica-Macro-3-2-001

What I did with this camera was, taking out the optical unit

from the lens barrel and re-mounted it up-side-down

(front side back) to the same barrel.

(= Camera lens was designed to give the best performance

when the front was focused to the infinity, and the image

was closely projected to its back.

It’s mean, if the back of the lens was closely aimed to the subject,

the front side will make a big enlarged image. 

= this exactly what the macro photography is.)

The lens barrel was glued onto a Contax-Canon mount adapter

to be used on the Canon DSLR.

And this (improvised) macro lens gives x1.7~x3.6 magnification.

(with a farther 44mm extension it gives x6 magnification !)

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—– considering its cost virtually nothing, the performance isn’t too bad.

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— though, with a test shot of yet again the egg of

Green lacewings which showed Chromatic Aberration,it was

found to be not as good as Chinese cheap Microscope Lens.

(which was designed for macro work))

—– incidentally, I’m very much puzzled by this Egg —

(1) Why so many of them were found in my room = Why

the insect prefer to came and lay the eggs here.

The larvae of Green lacewings  eats Aphis kind, it’s mean

they should have chosen such kind of environment.

(2) When this egg was laid — last year ?     If so, why I didn’t

see it till yesterday = it was on my desk, very front of my eyes.

(Photo above were x2 and x6 magnification)

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Taking closeup photo of rather unwilling wasp

wasn’t very easy.  🙂

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(With the enlargement, flaw of the lens such as a

Chromatic aberration, became appearent.)

 

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Moving or shaking

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To create focus-shift soft image, it is nesessary to

use a slow shutter speed = in consequence, pictures

easily get bluured —– don’t worry, bluured or

shaky picture is still the pictures.  😀

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Photo above = I like this painting like effect.

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Anyhow, I know, nobody would complain. 

In fact, to anybody, it’s not a matter at all.  

Ha ha ha   😀

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Tulip tulip (in Focus Shift Photo)

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You must feel a sigh of relief — this is normal shot.   🙂

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So, this is it.   Aren’t they pretty ?   🙂

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Cherry Cherry – 2016

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Those photos were from the several Cherry trees,

probably the last cherry photos of this year.

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Lens used was that modified Tokina-Wide-Converter

with bellows on Canon 5D Mk-III.

—– Don’t you agree, £1 junk from an Odds n’ Ends box

of a Camera shop wasn’t too bad.  😀

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Cherry by Soft Lenses

1-A09A5079-Gaudy

The photos here were taken from the same Cherry tree as

the previous post.   (As they are not plain 5 petals flower,

this is not Somei-yoshino) 

The softness (?  Blur) on the previous post were created by

the Focus-Shift = focused image and the out-of-focus image

were mechanically superimposed on the shot. — But here,

the softness was caused optically by the lens’ aberration.

= Those first 4 photos were taken by the homemade

single glass lens = nicknamed “Gaudy lens” .

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Among my homemade lenses, this is the most useful,

easy to use lens.

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You may say, the aberration of this lens is too much

though, this is what I wanted.   🙂

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Above those two photos, you can see the type of

softness are very different.  = The photo above and

the following 3 photos were taken by  the modified

(front diverging lens was removed)

Tokina Wide-Converter.

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Regardless the technical blur blur, all about

the photography (or any art) the matter is the

end result = if it is good, it’s good. 

Nothing else.   😀

(And when the result was the same, the cheaper

the cost is the better.)

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