Yoshizen's Blog

Oxford Street (and Selfridge) Xmas shot

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Those photos were taken by the lenses, homemade Mag Lens or Halina wide Lens though, few of them were by the Gaudy Lens on the Tilting Bellows with Sony A7R.

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Aster — (Secondly Photo)

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Aster (Aster amellus) must be one of the most common flower here.Its name Aster came from its star shape (why the round shaped star was sheen by such astric * shape  is the other problem ! )  😀

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Leave such problem to a neuro scientist to argue.   I did some screen shot of its Aster’s image and created the secondly images.

In my policy, I reject the use of Photoshop or in-camera “Effects” kind, because they were the creations of somebody else. Not mine.

So, whether the artefact of “Hi-ISO noise” is a Digital process or a Character of the hardware is a point of the argument.

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On process, the screen shot was made with ISO 25600 setting and during the exposure, the focus was shifted to give a blurring effect.

(Originals were shot by a homemade Mag Lens and the copy was made by Gaudy Lens on Sony A7R)

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Pen-F Zuiko 38mm F1,8 Lens on Sony A7R

pen-f-38mm1-a09a6822I don’t remember why this lens was still here.  This Olympus Lens

has been in the end of shelf many years.  It was a Olympus Pen-F’s

standard lens though, Pen-F was a half frame camera (24×16) and its

flange-back was 28.95mm, the lens couldn’t have a focus other than

a macro use, I might have had a test of close-up photo on Canon 5D.  

— The funny history of this lens was, on late 80s, one of my friend

photographer who wanted to experiment, “To get a rough-grain soft

image, using a Push development on a Cross-process” = In order to get

rough Grain, he wanted to use even smaller original = hence Half-size. 

—– So, he asked me to make an adapter to use Nikon Lens on a

Pen-F body.  =  I made it out of Nikon close-up ring and a Pen-F

mount from this 38mm lens = So that, this lens lost bottom mount.

= in normal sense, it is an utterly useless junk

—– though, while Googling the Net, I found the people using Pen-F

lens on the Full-frame Sony camera !    (Unlike the lenses for the

Cropped size senser DSLR camera, those Olympus Lenses has

been made to cover (well almost) the full-frame image circle !) 

pen-f-38mm2-001To modify this lens for a Sony E-mount camera, I found a M-39

Leica lens to E-mount adapter has the almost a right size. 

So, I screwed  M-39 ring to the back of Pen-F lens (+ some

adjustment for infinity focus) = = = Voila, Pen-F lens on A7R.

pen-f-38mm3-a09a6830The test shot on general

distance was usable but

not bliliant.

(The lens might have 

sold as a spre parts =

damaged goods)

Still, Close-up photo

was pretty good.

(Photo below, middle)

Though, there isn’t much soft texture (It may be because

the Sony A7R camera or its image process.) (Photo right)

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Olympus Pen-F Lens is very small, (In comparison to such as

Nikon lens + adapter on Sony) pretty nice match to the A7R,

so that, I’m quite happy to have this  F1.8  wide-angle lens.

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Yet more Homemade Lens — KodaFun Lens

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As you can see from the following photo, this lens came from a Kodak

fun camera.  Originally, the lens was mounted on the F8(?) sized hole

on the camera body though I used this plastic lens with fully opened

condition. (Hence more halation and the aberrations which I want !)

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Even Fun lens needs to be mounted in the precise position.   😀

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Basically as a omunifocus lens, it’s creates a kind of certain image

in any distance = in other words, no fun on the Bokhe !

Still the matter is, where to use it.

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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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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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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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