Yoshizen's Blog

Fragmented lens for London snap (A)

Somewhat the same landscape by the “Fragmented Lens” on Nikon Z7.

It is something puzzling me ? ? ? —– Advanced image processer in the latest camera straggling with unusual images and make the image even more unnatural.

.

F and M — Cats story ?

They are the photos from the Fortnum and Mason’s X’mas decorations taken by a homemade “Fragmented Lens” ( few exceptions which got dark surroundings = 110 Pentax 24mm Lens) on Nikon Z7.

I’ve been seeing this gentleman always on this doorside every X’mas time (except last year) = he is the another fixture of the Fortnum and Masons shop for ages.

I’m not knowledgeable enough to tell what breed of the cat they are nor able to tell about those angels —– still, I hope you to have a peaceful merry X’mas. 😀

.

Oxford Street —> Selfridge X’mas decoration (?)

The all photos here were taken by a homemade 1/4 lens on NikonZ7.

Selfridge’s this year’s X’mas decoration was just the display of their goods.

Economical downtern reflected from uncirtainty of the Brexit etc etc might be making shy economy, hence their design were pretty economical here too.

.

1/4 Lens for London

They are the snap shots by the 1/4 Lens on the Nikon Z7 —— colour balance was automatic ( B/W effect was not intended = just happened)

By the way, this is Downing Street — over there the Number 10

Incidentally, it was not the end of the world. 😀

.

Hi-ISO noise

Fragmented lens on Nikon Z7 / ISO 25600 / ND filter = in order to make the exposure time even longer, a dark ND filter was used as well.

Till now, I thought that the noise caused by Hi-ISO setting was just a nuisance, or necessary evil though, I became aware, in certain case, it could be an useful tool.

(ISO represent the degree of amplification of the signal —– any electronic signal would produce the noise when it was intensively amplified = whether it was audio signal, or light signal from the image sensor, when they were amplified, the residual charge in the circuit line etc etc were also amplified hence those noise was superimposed onto the main signal. — you may say why the digital signal has noise = the output signal of image sensor IS analog, until they were AD converted. = Here, in the AD converter, the depth of 12 or 14 bit etc decide the quality of the image. = one bit more mean twice as much process will be needed for each pixel of the image sensor ! = You see how enormous the task is = That’s why almost all digital camera is Japanese (inside of Leica is Panasonic) and almost all image sensor is Sony —– Who else would bother to take such awkward task in the world. 😀 )

Fragmented lens / ISO 25600 / ND filter
Fragmented lens / ISO 25600 / ND filter
Fragmented lens / ISO 25600 / ND filter
Fragmented lens / ISO 25600 / ND filter
W 1/2-B lens / ISO 25600 / ND filter
For a comparison, this photo was taken under the same condition but with the Sony A7R / Fragmented lens / ISO 25600 / ND filter (noise level seemed to be a bit less than the Nikon Z7 —– was that what the advantage to be an electronic company over a lens company ? )

Even among the oil paint, many different styles = so, in the soft paintery effect photography, there could be a grainy style —– looks not too bad.

.

Morning Sky – Dec’19

10 Dec’2019 07:32 Zeiss Distagon 18mm F3.5 on Nikon D850
07:02 D850-18mm
07:18 Fragmented lens

This one was by the Fragmented lens on Nikon Z. (Camera itself set the ISO to 12800 (not me) = So, the noise was too high — still, as an image, it wasn’t too bad. Unlike a soft smooth image, the roughened up texture showed quite strong impact. I like it.

07:20 W lens-B

This image was too murky though, that was what this homemade lens was made for.

07:20 110 Pentax-24mm
07:21 Fragmented lens
07:33 D850-18mm

Only a decent lens in this post = Zeiss Distagon —– costed me a bit. 😀

07:41 1/4 lens

Small part of disposable camera lens makes not too bad image !

07:43 110 Pentax

This Pentax lens itself IS a pretty good decent lens, even if it was for 110 size camera but mounted on a full size mirrorless Nikon Z.

We can take picture in any excuse. Nothing hinder us to be creative.

.

Night sky

00:52 / Colour balance = Shade

Time to time, we see extremely red night sky or red moon. Yet still, we may not necessary take picture of it, or to know why the sky was so red.

04: 18 / Shade

When it’s red, it’s red all night till morning.

03:17 Fragmented lens / Shade

This photo was taken by the “Fragmented Lens” with the colour balance setting for Shade. (long exposure showed more noise)

03:25 110-24mm / Shade

The same camera but the lens was changed to 110 Pentax 24mm lens.

03:37 110-24mm / AWB

When the camera’s colour balance was set to Auto, the image became like this = was this because the red shift was nutralised by the camera’s image processor, OR red was not there in the first place but created in the camera ? (To compensate “Shade” = 7000K Colour balance, the image would be pushed to warmer orangery colour, hence red sky !)

05:41 D850 18mm / Shade

And this photo showed that the red colour was in fact the refrected light on the clowd. Unless the light from the ground was refrected back, we can’t see it, in other words the sky was not burning but the grounds.

08-12-2019 16:58 D850-18mm / Shade

Then, how about tonight full (?) moon in the sky ?

.

Tagged with: ,

Fragmented Lens

Note: The photo here was just fuzzy (unsharp) = no overlapping bokeh = since it was made by a single lens

After making 1/2, 1/4 lens cameras, there are many fragmented lenses left behind. Even fragmented — its still functions as an optical lens.

Zennist’s tendency is = No attachment, — yet still, (strangely) go for whole hog. So, why not test those small plastic fragment ?

As (or used to be) an optical lens of one time use camera, it works as a lens, even though it was fragmented to such small fraction.

And a remarkable point of those fun camera lens IS they are very well designed aspherical omuni-focus lens. Therefore, they can capture the image in distence to

close subject such as this without any focusing control. (well, you may say, more or less)

So, for the general use, they do an enough work. What do you ask more (for its less than £10 price). 😀

.

1/4 lens !

After two attempt of two 1/2 double lens, it would go to even 1/4, naturally. (Anyway, it was only a matter of hacksaw and a glue work. And it was what an Otaku lives for. 😀 )

Photo left = Covering the lens with black tape and see the effect = even from a small part of the lens, good enough image would be created. Photo right = so, only 1/4 of the lens to produce the main image and 3/4 lens for the out of focus bokeh.

The plastic lens was mounted to the Sony A7R camera (yet the lens can be attached to the Nikon Z as well.)

So, this homemade lens will produce the image even worse than those W-lens A or B ! 😀 —– can you guess how happy I am. Ha Ha Ha 😀

So, they are the regular test shot. (This dry rose has been working for me the past 5 years !)

In case, if anyone wanted to see more natural image for a comparison, those are the images from the ordinary (?) 110 Pentax 24mm lens on the Nikon Z.

.

Ensign and Old film

I found this Kodak 120 film inside of a junk Ensign camera. Camera itself may be 70 years old and the film might be as old as 60 ? years. —– the reason why I said not 70 years old was, when the film was developed, the image was very foggy = I guessed, it must be caused by the dirty lens (hence it was a junk) = Film was shot long after the camera lens became a foggy junk. (To clean the lens, I use Methylated Spirit. Never use Surgical alcohol which leaves skin cream, nor White Spirit which may melt some plastic and paint)

As I wrote before, this camera has almost no control, other than winding a film and click the shutter (of which the shutter duration was only known to be as Inst, or Time (B). = no Iris or any focus control. ——- Yet still, the developed old film showed rather consistent exposure (despite they were severely fogged) = may be the shots were made under the same hazy sun (very little shadow) on the well customised landscape.

No sharp detail though, the atmosphere of the time is certainly there.

To test the camera, I loaded the camera with a fresh Ilford FP-4 film, ISO 125 (I got it from the Photographer’s Gallery shop for £5 —– Jessop like shop doesn’t sell B/W film any more, not mention 120 films) and I exposed the film with the different lighting condition while making each record. (Such as the light level of what Sony A7R with its 40mm lens tells under F8 setting = I guessed the “Inst” of Ensign shutter was about 1/25 Sec’ and if A7R said 1/10 — give a click twice for the same image (while the camera was fixed on a tripod).

It seems, this lens has no defined focus in anywhere.

— (Was the theory. But as my mind was diverted to check the exposure reading in the A7R and to write the record down, I made double exposure mistake = the test was a mess. 😀 —– And I realised that I was neither a Zen Master. 😀 )

(Development of the films were done by D-76, 1+1, 20 degree C, 11 min’, 10 second agitation on every min’ )

Forget academic talk or Otaku taste kind. See what you can see on front. People like dirty old man likes pretty image, like “Miss— kind”. What’s wrong with it ? 😀

.

%d bloggers like this: