Yoshizen's Blog

Snap the town by Mag lens (3)

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How weird ! ? ? ?  (of the image of Mag lens or my eyes ?) —– I know.   😀

(I’m going to further this with G10 lens etc — some may say, It’s an obsession.) ——– Oh, my my my, it’s snowing.

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Snap the Town (by Mag Lens)

6Dec by Mag(1)-DSC07676It was nothing to do with Xmas though, I went to a camera shopping.  Alongside, I had my Mag lens, Fun camera lens, Sony A7R with me.  (I made a fun with shop staffs while testing D850.)  On the way back, I did some snap shots of the town-scape.  (All of them were shot by Mag lens except the last one which was by Fun camera lens)  = Have a fun.   😀

6Dec by Mag(2)-001

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6Dec by Mag(7)-DSC07685

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6Dec by Mag(9)-DSC07688

How’s that ?   😀

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G10 Lens

G10 Lens(1)-A09A7667Generally speaking, the converging lens was designed to project an image — and supposedly a good image.  So, whether it was a cheap toy camera, one time use camera, their lens was designed to make an image as good as its cost allowed.  Its mean when I re-use those lenses, naturally they create quite usable images. (and from their deep depth of field with rather small iris, those images were somewhat focus-free)  But, even among my homemade lenses, if the lens came from somewhere which was not expected to form clear projection (by its lens own), the image was rather hope-less (without having the other lens to compensate the aberration together)   A Lens, which I scavenged from Canon G10 compact camera was that kind.

G10 Lens(2)-5

Photo left was a PENTAX Zoom compact camera.  From this one what I utilized was a mere lens barrel.  And from the photo middle, Canon G10, compact zoom camera. From this massive Hi-tech camera, what I found useful was just a front element of the lens, that’s all. (Like a stepper motor driven F-aperture, stepper motor driven focusing unit etc etc — not mention the screen system, image sensor etc may be used “one-day”  😀 )  And the photo right was the finished product, G10 lens for Sony A7R. = Looks cool isn’t it !  (sample photos which I said hopeless quality may come soon)  😀  (Zen Buddhist would say that, Even a hopeless lens should have a Karma which made him to play a role.) —– Incidentally, today (06-12-2017) was the exact 100 years anniversary of the Independence of the Finland —– Kiitos !

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Halina Lens

Hong Kong based Chinese Co. who made Halina camera, Hakin was an interesting company.   In fact, Halina itself was an utterly insignificant cheap camera still, they started to make the cameras as early as in the 1950s = started about the same time to many Japanese camera makers.  They all started to make cheap tin-toy cameras.  From there, the Japanese camera industry developed and evolved to the today’s Hi-tech industry. 

In contrast, Halina stayed almost the same position since.— or, they might just stick to the cheap products to sell in the poor country.  —– I would say they were serious people though, they only managed low-tech, or they never wanted more.  (It might be an old Chinese philosophy to know the position !)   (Still, they made TLR (ish) camera, Auto-exposure camera even 8 mm Cine = surprisingly many many cameras.)   It seemed, they try to survive against digital camera (unless the PC / Printer was handy no print to give to the friends ) still, phone camera killed them off.

Halina camera(1)-001

For me, it was yet another Toy camera lens still, yet another try.

Halina camera(2)-001

In most of the case, so-called Focus free was done by the smaller F-aperture’s Depth of Field.  So, instead to have focus free, I emphasized even stronger blurred image by removing the small F-aperture (iris) (= hole in a plastic = Photo left)  Then, the Lens alone was mounted in the center of a metal panel of the camera mount (photo middle) —– Then, on the camera (Sony A7R) (Photo right)

What the photo looks like with this lens was —–

Dork(1)-E

(Those photos were from the Dorkbot gathering.)

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(Not the best occasion to test the lens still, the lens could handle the very tricky lighting condition rather well ! —– Other than the big halation, the images were quite normal aren’t they.)

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Sky–Moon–Pinhole

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This photo was a morning view from the kitchen window. (But not everyday’s view.)

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I was making a thin metal panel (commonly known as a drink can — I didn’t buy = I just found it.  :-D) to a DSLR Pinhole panel.   And this was the outside view then. (30-11-2017 / 16:03)

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The same outside was looked like this by the Pinhole !

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Then next moment, the moon appeared on the sky (may be the cloud hiding her was moved away)

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What ? —– I took a picture with D810 / Zeiss 18 mm lens as a fixed shot.  (16:14:40)

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A while later, the moon disappeared and the sky got dark. (If you take a photo of the dark sky, they will show you a red color = may be a reflection of the city’s illumination and the shorter wave-length of light (= like blue) was attenuated easily in the earth’s atmospheres, hence the sky looked red.)

Whatsoever, have a quiet nice evening.

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Nov’ Moon

Nov' moon-000

It seems, in any society star-gazer was accepted, a bit funny but a kind of romantic still, no harm to the other people.  But, the moon watcher was categorized as a loony and not necessary welcomed by the people.  I don’t think I’m a moon watcher, neither be a loony, so far as it was self-declared.  

I don’t necessary want to see the moon but time to time it comes to the window regardless.  In fact, the photo left took a while for me to realize, that it was a moon (2 days before the New moon. = on 17 Oct’ 2017) and the right photo was taken 1st Nov’. —– the reason why it’s having shadow was, the moon was behind the tree. —– In such condition, did I still need to take picture ?    Ain’t I obsessed ? —– I didn’t feel I got ANY obligation to do so though, I just did it again.  😀     It was very simple, the moon was there. (Strange things was, the camera, Sony A7R with 500 mm mirror lens was on a monopod. —– ISO 3200, 1/1000 sec F8)

(To tell you the truth, there was a serious danger of this post having yet more photo of the full moon which was briefly appeared next night —– though it disappeared behind the cloud soon.)  Sigh !   😀

Nov' Full moon-002

Your nightmare has come.   It’s a full moon taken on the 4th Nov’, but left photo was taken by Canon EF 70~200 mm at 200 mm, F2.8 on Sony A7R (F2.8, 1/1000 sec)  and the right photo was by Canon 5D MkIII (F8, 1/500 sec) Both hand held. —– They showed the situation quite well, using the same lens even fully open F2.8, mirrorless A7R can make sharper image. 

—– The story behind was, when I heard bang bang noise, I realized that it was the Firework night.  As I saw a big one on the window, I took the camera out with 200 mm Zoom on though, that big one seemed to be the last one. = How shame !  Then, I found the Full moon !  Without bothering to get 500 mm out, I took the moon with 200 mm lens — and I’ve tested the same lens on A7R too.  Very very funny.

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Oct’ Moon by SONY

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(Last night, I shot on AWB — to be fair to the camera, I did retake with manual WB.  😀 ) —– Naturally the Moon is one-night size smaller. (Same camera and the lens though, the second one looks sharper = thanks to Focus-peaking = better focused, but showed more noise)

Well, million years, it’s the same moon and it should look the same to the other one “August Moon” because all the conditions were the same except the camera was not Canon 5D Mk-III but SONY A7R.   The picture was taken through the double glazed window therefore it was not as sharp as “Red Moon”.   Something peculiar was that the supposedly the same Tamron 500 mm lens’ image looks sharper when it was taken on the SONY camera.  —– Unlike 5D as the SONY is mirror-less, it must be no mirror shock and the image processing engine in the SONY might be working harder to tinker the image ! = May be it’s the good things to a camera user. (I mean a lazy user who even not bothered to open the glass window.   😀  )

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Pinhole Photos on Alpha 7R

As I promised I made a pinhole to my friend’s  A7 camera.

Alpha 7(1)-001

8mm hole was made on a body cap and thin aluminium

panel (beer can) with 0.3mm hole was stuck inside of the hole.

Utterly funny accidental discovery was, a body cap of  A7 can

be used on Nikon body, if it was inserted off 180 degree. = so,

the test of this pinhole was done by a D810 body while pulling

the Ai-coupling lever. —– Then, another coincidence, I saw a

good second-hand  A7R in a camera shop = what a convenient

timing = I bought it — by trading the Olympus OM-D away

(because the Olympus body seems to be falling apart.)

Therfore, those test shot was made by a SONY  A7R, on the

way to see my friend.  😀

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Some thing very remarkable was that all of those photos were

made almost automatic = camera has been set to AUTO and

without me changing ISO, Color balance etc, nothing, but just

aim and click. (the best of all, I could click while seeing

the view finder image.)  (It seemed, ISO was set 6400,

shutter speed were about 1/15~1/60 though,

I hate the Shutter nois, and the color)

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On coincidence, I started to make the Pinhole Photo on this  A7R. 

— Even funnier discovery I made was, that the Olympus’ old

OM body cap fit to the  A7 body if it was inserted 180 degree

off direction = I don’t need to order and wait a month to get it.

(Body cap or thin (and cheap) adapter is the base to make “Things”)

Alpha 7(11)-001

So, first of all, my own pinhole was tested on a OM body cap while

the beer can panel was placed on the bottom of the body cap.

(Body cap penetrating 4mm into the  A7R = its mean 18mm

flange back – 4mm = 14mm ! — This pinhole can make 14mm

ultra-wide lens effect ! —– Well, in theory.   😀 )

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So, this IS the 14mm wide pinhole image ! —– though,

with the Cosine Rule, light fall off is such significant, image

became round.  “Like Pinhole camera”  Ha ha ha.  😀

Alpha 7(13)-DSC02086

And this is the comparison, Nikon 16mm Fisheye lens’ view.

(Sound a bit patronizing, though, you have to see, what sort of

effort was paid to compensate the light fall off on the lens design. 

And, see the pinhole image above to see there is no distortion =

distortion was caused by the light-bending optics = Pinhole is

not bending the light (because they are not a lens)   😀

—– Well, I got a toy.   😀

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