Yoshizen's Blog

Play with Lens (2) — Tamron 300mm F5.6

Tamron 300mm F5.6

On the previous post, I’ve shown you many samples of the fuzzy, soft-focus images

created by the (mostly) single convex lens.   And I had a belief that the single

convex lens which inherently possessing aberration would produce soft image.

Yet still, what I have tested was the lenses about 50mm focal length —– then I thought,

if I can get longer (= telephoto) soft-focus lens I could take nice photos from distance.

(Pentax had 80mm Soft-focus lens and Canon used to have 135mm Soft lens though

their effect was rather subtle.)

—– So, why not to see it with the front element of a telephoto lens. 

What I tested was old (70s ?) tamron 300 mm F5.6 lens. (Photo above — bottom left was  

the front element and the bottom right was the rear element.

(this rear lens seems to be a 2 element compound lens) 

Tamron300mm-2-305-001

Photo above is the test shot of the Tamron 300 mm F5.6 (center photo was the part

enlargement of the photo left (full-size) and the right photo was by the Tamron 500 mm

F8 Mirror lens as a comparison) —– 500 mm lens showed much clear image though

this 300 mm lens was not in the original and in good condition. ( — Even worse,

those photos were taken through the dusty double glazed window)  🙂

Tamron300mm-3-306-001

The question was if this front element alone could show the soft image ?

Photo above, both left and the center were taken while rear element was removed

(= Front lens alone ! )    (This lens could focus down to 1m = 1/3 close-up.)

Well, with or without the rear element which supposed to eliminate

the aberration did not make much of difference. (on this occasion)

= My attempt to make fuzzy telephoto lens was failed so far.  🙂

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Lens Test on Cherry and Plum Blossom

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Those photos were taken a while ago, the same day I took pictures of Daffodils.

(After this, there must be much better full bloom somewhere else though.  🙂 )

(photo above was taken by a Canon Fisheye lens)

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And the following photos were taken by the Two Element Homemade Lens above.

hoya

hoya

The beauty of this lens was that there is no focus  😀   (Other than this lens,

rest of the lenses were used with the Tilting Macro Bellows for focus.)

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And the following photos were taken by a lens originally came from a Canon

compact camera G9 = it was their zoom’s front element.

The lens was Epoxy glued onto a lens mount ring and a filter ring was fixed too.  

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Unlike first two photos, those photos were (I think) Plum tree.

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Next was a front element of a Zoom lens  (I don’t remember where it’s came from,

Canon or Sigma ?)  — The lens was fixed in a similar way to the other homemade lens.

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Front element itself couldn’t eliminate the aberration. —– but this one showed

very strong Coma aberration — (if not a camera shake).  In most of the case,

good softness of the image was created by the Spherical  aberration  

= so, Coma aberration was not desirable here.

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Strangely, this Coma aberration appeared somewhat in middle distance.  

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And not much so on the close-up.

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This one above showed no Coma aberration but the following one did  ? ? ?

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I need to have more test.

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Last one here came from a cheap Wide-Converter for a compact camera.

It got quite big diameter — hence the effective F-aperture is F1.6 !

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I like the images from this lens though —– strangely, despite full open F1.6,

the back image was not necessary out of focus or dissolved into big  Bokeh.  

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Anyhow, each lens got its own character = pros and cons.  🙂

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f

Last photo above was again by the same Fisheye lens. 

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Daffodil — Lens Test

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As the spring has started, I took the lenses (in fact quite few) which I “made” duling 

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 the winter hibernation out to the test.  🙂

And those lenses were designed to use with 

 tilting bellows I specially made for Canon 5D.

Photo left, Those three lenses (mounted on the

 Nikon mount adapter) were saved from 

 the broken cameras or lenses.

— Left one came from Canon G9, center one from an old zoom lens and the right one

came from a Wide-adapter and as they are having focal-length about 50mm~60mm

therefore effective F-aperture is about F2 (fully open only ! )   And being used on the

Tilting bellows they are able to give a focus from infinity to more than 1:1 close-up.

(with a bit of difficulty on use.  😀 )

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Most of the photos here were taken by the “Center lens” photo before, except

the right photo above, which was taken by the Canon Fisheye lens.

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Well, they were just a fraction of test shot —– still, shows some results

which I appreciate a lots.  🙂       ( —– whatever you say.  😀  ) 

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Soft Effect by Camera Shake

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While experimenting the effect of the camera shake, I got the idea to use the old

images on the PC screen as a subject. (Give a shake to a screenshot.)

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Shaking photography become an industrial scale —– and it’s much easier to give

a different way of shake in the room = hand-held or a tap on the camera, mounted

on a flimsy shaky tripod. —> It created pretty nice soft blurr. (Photo above )

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On the screen, this was the original image taken by Zeiss 85mm F1.4 Lens.

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The photo above, the soft effect was made by a free program Picasa. = It’s obvious,  

a mechanical shake gives much more interesting effects. — and a fun !

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Though, the screenshot having an inherent trouble to show the grid of the screen.

(If you enlarge this and next image, the grid would be seen.)

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If there wasn’t a trouble of the visible grid, this was a rather pretty image.  Pity.

(When right amount of the shake was given, the soft effect dissolve the line of grid. 

Too much shake spoil the image but too little leaves sharpness and the grid too.)

There is a possibility to use the Image Stabilizer for an opposite effect =

make an image blurred !   (Though, it needs to hack-in to the control program

otherwise the lens has to be modified !)

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Winter Cherry for New Year

 

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First Post for this New Year, I was thinking to put photo of Sunrise or

yet another New Year’s cooking ? —– but I’ve got bored with Sunrise, seen  

from my window,  and the cooking doesn’t necessary to be for the first day.  

( though, I’m not such keen, travel to a beach just to see sunrise. —– Do you 

know some people travel as far as an island in the south Pacific, just next to

 the International Date Line, to see the earliest sunrise in the World ! —– so,

 the Japanese TV goes there as well.    And Air Companies in Japan operating

handful flights to see the first sunrise above the clouds !

Such as this one. — but what a shoddy video. )  

So, I decided to put sweet images of the (That !) Winter Cherry Flowers.

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Beautiful soft Bokeh was created by Zeiss Planar 50mm F1.4 T* with and

without Ultra heavy Proxer out of a TV zoom lens.  (In this instance, instead

of 85mm lens like before, I used 50mm lens, because I wanted to have a bit

wider view though, 50mm lens has not as smooth Bokeh like 85mm lens.)

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Those flowers were the other tree standing next — a bit narrower flower petals,

still flowers in the winter = it’s mean, the gardener in charge with those trees

did intentionally planted those Winter Cherry here.

(so, the tree was not a fleak, but the established winter variety.)

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(It seems, the best bloom was about a week ago)

Still, it’s a view to make our mouth shut — it’s mean, either you follow

or you were rejected by them.  (Nothing between.  No argument with the Nature.)

___/\___

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Poppy Poppy

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Normally I don’t  go to a public event and take picture — the same reason that I don’t watch TV.

(If million of others do the same, I can’t see a point, why do I need to do the same ? — among the millions, there must be much suited person to do the subject = leave the business to that person and I’ll do what nobody else is doing or ever tried (provided, it cost small = Most of project with large cost is not creative, since it is a rational combination of existing devices and the ideas, otherwise, it is industrial (Humanoid Robot is ingenious but not creative), if not political (Communist’s huge monument never be creative, unless we see them as an ironical symbol of man’s idiocy.) —– that is my art and who I am.)

But strangely, I made an exception to the unusual event to fill the ground of the Tower of London with Red Poppies.   (Said to be 890,000 of ceramic flowers.)

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In an essence, this is an art exhibition using the Remembrance (of the War dead) Day as a pretext. (Red Poppy is the symbol of the war dead as they flowers in the old  battlefield of the western front.)

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When I popped out, it was a bit of drizzle though, when the bus coming to the Tower of London, the sun blakes out and even a Rainbow appeared on front. (Top photo)

Then after a while,  the sky became like this photo.(Shadowy ground needs to have a morning sun though.)

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These days, the art piece got to be massive size, it is a silly creche, the larger the work it must  impress more.  (Unless it was installed in a middle of nowhere, it’s easy to proclaim that this is a public art hence easy to get public funding and media exposure.) (it seems, it was started with that floating big duck)   😀

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Red Poppy ? ? ? — they don’t look like a Poppy  though, it’s their problem.

(This photo was taken — can you believe — 20 m away ! )

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 The cascading flowers was dubbed as “Weeping window” — is it ?

(A man in the cloud said “Snorting nostril” — well, it’s looks much more like.)   😀

Those photos were taken by Canon Fisheye Zoom 8~15 mm and the closer shot was made by Tamron Mirror 500mm F8 (I really love this lens.)  on the Canon EOS 5D Mk-III. 

(I went there only with those two lenses. = I knew what I need to photograph and had the pictures in my mind. —– I have 9 genuine Canon lens (from 8 to 200mm include Macro and TS lens kind) which got all different character  = I chose which one or two will suite the job.  — which mean, I don’t rely on the opportunistic discovery on the spot. — With a good luck and an opportunity even amateur can produce quite good picture.   But, I’m not an amateur = even in the worst condition, still need to fill the assignment = no excuse = That’s what professional meant. (—– I mean, when I was in the job.  —– Thanks goodness I’m out now.) Ha ha ha.   😀

By the way, a combination of photos here was a demonstration of minimal set, such that for 2 pages article in a small magazine.  If the Editor likes to emphasize an aspect of one photo, I’ll send the addition though, in this case, the most interesting kind of image is “Making Poppy” but, no doubt, it must have done in China and not available, (still, no doubt, organizer has them.) —– Though, as the Organizer is going to sell those “Poppy” to create huge profit, they may not like to expose the story behind “The Soul of British Dead Soldier = Red Poppy was cheaply mass produced in China”.)

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Autumn Cherry 2014

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In a normal sens, it must be crazy to see the cherry blossom in November.

But this cherry tree is not an ordinary cherry.

= This is the Autumn Cherry which I’ve been photographing every Autumn to

Winter in a past few years.    ( I even called her Perpetual Cherry, before.    🙂 )

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In the Autumn, when the tree started to change the color, this cherry start to have her

flower bud.  Then one or two bleak open.  — On the beginning, I just bumped to this flower,  and

realized,  it was not an accident or fleak,  this tree has a fixed program to have winter flowers.

Since then, I also made my custom to visit this tree when I see the season.  May be, it is

the similar kind of feeling to see an out wedded daughter come home once a year and find that

she is fine and doing well.    (Only a guess as I don’t have any kids.   🙂  )

Autumn Cherry-2014-3-209-001

Those photos were taken by Zeiss 85 mm F1.4 , with and without

“Homemade Ultra heavy Proxer (close-up lens)” on Canon 5D Mk-III.

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3D View ?

3D Test-001

On the second previous post, (to those Tri-color Photos) Photographer Karen

(drawandshoot) put a comment wondering what would happen if those picture 

 was seen under a 3D glasses.

—– My understanding of 3D image was, that if our each eyes receives the image

of slightly different viewing angle, our brain Re-configure them into one 3D image.

(but 2 different images has to be the images seen from the position, horizontally 

shifted about 2″ ~ 3″ distance = in short,  like the images seen from our eyes  😀 )  

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So, I tested it —– to see what happened ?    

The crucial point of my Tri-color Pinhole images was, each Pinholes were separated

 less than 2 mm. = It’s mean, the difference of each images in Sky, Pink, Orange 

colors were very small, almost identical. —> therefore they didn’t make 3D.  

Funny thing was, the brain (my brain) seemed to have a big difficulty to comprehend 

the images which got Sky and Pink in the same time.  —> So that, a moment to moment

the dominant vision Left or Right changes = suddenly the images changes Sky to Pink

or visa versa. 

(If you are good in 3D view in aerial photo kind, try the top photo here, = to see

Pink photo by the left eye and Sky photo by the right eye.  Actually, as each eyes seeing

different photo, this color change wouldn’t happen but more likely the brain sees

mixed colored image.    But if you try to see, such as this one with 3D specs (if you have

one, or use color gel) you may seen the phenomenon = dominance of Right or Left brain

changes.  =  This must be our brain’s defensive response.  Like our left eye is connected to

the right brain = a kind of evasive action to limit the damage when our head got injured.  

There couldn’t be a possibility  of one object having two colors in the same time = it’s  

mean, eye could gotten wrong, otherwise visual cortex got wrong —> hence the brain is 

testing the system by rapidly switching and changing the channel.  Interesting isn’t it ?

 

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Sky-Pink-Orange Tri-Pinhole Pictures (3) = Pretty Images !

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Pinhole Photography is so easy and even Tri-color Pinhole is not difficult to make =

just put small (3×3 mm) color filter sticked on the back of each hole.  —– Only a

tricky part is, as the viewfinder was masked with black tape, shooting has to be done 

blind, it’s mean the composition and the angle of photos are all in guess work.

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And those colorful images appeared after the image was tinkered, the shooting was

done more or less on the speculation —– still, after hundreds of the experiences,

I know what to look for.   When the results got a sort of sweetness, it got a maturity.

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Sky-Pink-Orange Tri-Pinhole Pictures (2)

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If you are tired to see this kind of looks all same images, I should say sorry

but still, I would put you into misery few more times. 

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In here those Tri-color pictures, the trouble of Orange color in the previous post

has been sorted out and the position of Blue and Orange were swapped. 

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 As its character, Tri-color Pinhole images are inherently gorgeous.

It makes one flower suddenly trebled and put a color to each one.  

—– How marbelous. 😀

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As I’ve explained in the previous post, those exaggerated color was not made by

any fancy program but by just darken and brighten several times that all.

(with an adjustment of  Wammer — Cooler color a bit)

For me it’s a fun.

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