Home-made flower :-D
It’s a middle of September, not many flower left.
—– Don’t tell me to go to a florist. I don’t buy flower or plant.
They should be where they grow. Unless I found a pot abandoned on the street.
—– (provided it’s not a meter-tall tree.) —— Then Kinetorori murmured me
“If no flower, why not make one yourself” —– It’s a his bad habit.
It’s the most un-Zen like practice though, —– I did. 😀
(Out of used envelope.)
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So, a flower is blooming in my room. (keep blooming for foreseeable future. 😀 )
Buddhists telling us “Live on the moment”
—– though, I took a way against it.
A photograph is imprisoned to the moment.
So, to have a Jailbreak of this “Moment”
I made a photo to have rather prolonged span
of time (unlike ordinary photographic norm).
The photo above consists multiple exposure
while having its focus shifted. = Yet another
attempt to create fuzzy image —– went
beyond a soft-focus lens, yet keeping a sharp core of
image, unlike a pinhole photo.
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Camera Stability Test
In the previous post, I talked about the Image Stabilizer a bit though I’m not a fan of it. Since, I haven’t seen any photo which was benefited from it so far. May be because, even without it I’m quite capable to shoot good enough picture hand-held. (even 500 mm lens !)
People may get a benefit of its Placebo effects = Peace of mind stabilizes the hand. 😀
Still, it was only “Impression from my experience” —– not from the objective comparison.
—– So, in this occasion I purposely tested it.
(but I wouldn’t say it was scientifically rigid —– Just clicked the camera as usual.) The test object was a “Pinhole-light” as you can see the photo left. = If the camera shakes, photo will clearly shows its movement at once.
I gave only one click for each speed, 1/125, 1/60, 1/30 but for Image Stabilizer (IS), further 1/15, 1/8 and 1/4 were tested —– It was free-standing hand-held though, I was using my Chest-pod. 😉
( Check the image of pinhole on the enlarged photo please)
Canon EF 200~70, F2.8 L IS lens on 5D Mk3 with IS On. From left 1/125, 1/60, 1/30. Lens zoom was set to 200 mm.
and further 1/15, 1/8, 1/4 —– even IS couldn’t save a shake on 1/4 .
The same as above but IS Off —– though, it didn’t make much difference.
Further slower speed = 1/15, 1/8, 1/4 —– 1/8 started to show a shake.
(Its horizontal movement showed, Chest-pod stops vertical shake more !) = It’s mean, IS made only one stop difference.
Tamron 500 mm F8 lens was tested on Canon 5D Mk3 on 1/125, 1/60, 1/30.
The same Tamron 500 mm was tested on Nikon D810 body, 1/125, 1/60, 1/30.
Results shows almost no difference on the different camera body.
Canon EF 70~24mm F2.8 big heavy lens was set to 50mm and tested 1/125, 1/60, 1/30.
And small Micro Nikkor 55mm F3.5 lens was tested on Canon 5D Mk3 body.
—– Different size and weight of the lens showed not much difference.
My conclusion was, as I thought before, the Image Stabilizer makes little difference, it was mare one stop. (Anyhow for 200 mm lens, hand-held 1/4 (if not 1/8) is a hopeless situation.)
So the lesson was, that if you are a good shooter, a sharp photo you made was = because you are a good shooter, not because of Image Stabilizer. And if you are a bad shooter, no Image Stabilizer will rescue you.
Those lenses are the lenses I tested with.
Some are the latest current model but 55 mm Micro Nikkor and Tamron mirror lens are more than 40 years old. —— still working perfect (optically 😉 )
And the kitchen was where I did those test shots. The shooting distance was about 2m, so, I shot them while standing here (half step forward). All from the same distance.
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Stabilize the Camera — Chest-Pod
There are many way to stabilize the camera. Starting from the way to grip the camera.
Ultimately a use of Tripod or Mono-pod, even a use of a Bean-bag.
Still, it’s all down to a mind-set of the photographer = Whether to pay an attention
against a possible camera-shake and become aware of own doing?
If it is a case “Doesn’t matter that the Stabilizer built into the lens should take care of
that problem”. —– This is the most funny situation. It is only a psychological trick.
The stabilizer may save a photo while cancelling a camera shake for further 3 stops = such
as in a situation of 200 mm lens, it would be safer to use a shutter speed 1/250 or faster
and with the aid of stabilizer it “may” drop to 1/125 or 1/60 —– still “may not” works.
In such case, I would set 2 stop higher ISO setting to get 2 stop higher shutter speed.
—— In the same time a “Maestro” may say “other than ISO 100 color is not in its best”
—– Oh, really ? ! The BEST mean it is still in a relative matter = NOT the absolute.
Our right-eye and the left-eye are not necessary even seeing the same color.
(Test it your self if you are not aware yet. 😉 —– If not aware this discrepancy,
how the one could boast about “the critical Color” 😀 )
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I used be working close together with the publishers, their printers, plate-making engineers,
and one of my closest climbing mate of mountain has studied Printing Technology and
became an expert of the photo-scanner (such as Crosfield’s machne) —— I heard many
wired stories of “Special Sorcery” in their trade —– still, when it makes the print on the paper,
such as slight difference of the paper which is different a roll to roll, or even a humidity in
the air changes absorbency of the paper hence changes the color of print, etc. etc. = there
can not be any reliable absolute or perfection. It is just someone’s preference.
Anyhow, computer to computer, this CRT to that LCD screen, the color is always different
= what fuss about such minute difference. 😀
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As I grown-up in the time when the color film was ISO 64 or 100, B/W was 400 and even with
push-development, ISO 1600 or so (Kodak Royal Record Pan = ISO 12500 was existed though)
I had to stabilize the camera other than ISO speed. So that, I tried many kind of chest-pod.
(though there are too many — even I don’t remember how many I bought and made myself.)
So, I show you two of my handmade.
This is a chest-pod of current use on my DSLR. The simplest, hence the most neat one !
It was made by aluminium pipe and a short piece of C-channel (which was cut and bent).
(A trouble was, the Airport Security suspects that this is a part of a disguised weapon. 😀 )
—– Unlike western people, I hold a camera right side down (it’s a Japanese tradition)
therefore when I shoot vertical-way, this chest-pod come against my left shoulder
just under the collar bone.
And this is the other one I made for EOS Film Camera which doubles as an external
battery chamber. ( AA x 5 rechargeable batteries instead of 2CR5 Lithium battery)
And it functions as a chest-pod exactly the same way as the other one. But this one can
fold down under the camera bottom. ( I don’t make a rubbish for a sake of Youtube. 😀 )
The advantage of this shooting style is, the hand which triggers the shutter, its elbow was
firmly lodged onto the body, hence it is far more stable than the style having right arm in
the air and move a finger to trigger.
—– May be because of the fundamental flaw of the camera holding style in the west, the
camera shake is unavoidable, hence, it gave an opportunity to the manufacturer to produce
“Stabilizer” and sell it for £500 more price ! (I don’t think it costed such amount for them. )
—– In a video image, shaky picture is annoying but on a still, “two stops slower” seems not
much use —– better use same £500 to another shopping, and set 2 stop higher ISO, —– above
all, have a practice to gain a stable holding of the camera would be far more advantageous.
Since, to gain calm, stable mind to stabilize the hand would be far more beneficial to the
one’s whole life in general. Anyhow, not all the lenses you got, has a stabilizer, and
living with unstable mind wouldn’t bring any happiness.
Better think it in different angle and better change the mind-set and the way you shoot.
(If you doubt, have look a photo here and the photos by 500 mm lens in the previous post. )
(Here, the Zen practice comes in. 😀 )
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Ring Flash / Flash Story
——– (This Ring Flash was made to use with the Fish-eye lens on the
——– Yoshi-handy handmade camera, 36 years ago ! 😀 )
In some posts ago, I’ve shown Studio Flash and ring Flash tube.
May be I should talk a bit more about Electronic Flash-light. — Why It’s called “Electronic
Flash” was, before, Flash-light meant Bulb Flash = the people over 60 might remember,
even if it was not a typical bulb shape, how about Flash-cube / Magicube at the time of
Kodak Instamatic camera, they are still flash bulb, but only small. 🙂
Flash bulb was an “Explosive device” = thin aluminium foil was packed into a glass bulb
with Oxygen and ignited by an electric spark, with a “Bong” noise !
( I only know from Antic collection though, yet before Flash bulb, it was an explosive
magnesium powder = it’s literally explode ! —– hence, all the assistant of a photographer
used to have a lots of spot on their face, burnt by the exploding magnesium powder. 😀)
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Unlike such hot staffs, electronic flash is using a discharge of high voltage electric energy
through a Xenon gas filled tube. To make this, a capacitor inside of a Flash was slowly
charged-up to high voltage, then discharge it in an instant to produce very intense bright light.
Like an electric spark, it needs to be high voltage, and the larger the capacitor,
the light produced from it would be the brighter.
This is the reason why a camera’s built-in flash, which got only small capacitor inside, was
not bright-enough to reach distance. In contrast, a studio type big Flash having a bank of
capacitors connected parallel to store huge energy,
and the big flash tube was made by a quartz to
withstand the heat shock created by a
discharge of huge energy.
And to charge-up those capacitors, studio type is
using the main electricity and a
portable type, clip-on type are using electronic
voltage converter to rise the battery voltage
to 315 ~ 350 V.
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As I said, the electric energy is first charged into
the capacitor.
The capacitor is an electric device, which was
made by insulated two metal plates or foils
to store electric charge. In order to store as much
as energy, very thin two aluminium foils were
tightly wound together. And to separate two
metal foils, paper or plastic film ect. which called
dielectric material was sandwiched between.
But most of the capacitor used in a flash equipment is a
type called Electrolytic capacitor which is not using common insulator, hence smaller in size.
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It is not well known to the people that those Electrolytic Capacitor has a limited life.
Especially if the equipment was not used long time (more than a year) they might be dead
and a moment when it was switched on again after long rasp of the time, the capacitor
would be internally short-circuited and gone for ever. —– ? Why the insulation breaks ?
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If you tested the conductivity of Aluminium, you may know, despite the Aluminium is a
very good conductor, Anodised surface shows no conductivity. With the Anodisation,
the surface of Aluminium was covered with the aluminium oxide which is an insulator.
Instead to use a separate insulator between two Aluminium foil, Electrolytic Capacitor
is using this oxide coating developed own surface as a dielectric / insulator.
So that, as long as the capacitor was kept receiving electric current, they maintain
the oxidized coating on the surface of aluminium foil. But if the equipment was left
unused long time, the insulative coating deteriorate.
—– And a moment when it was switched on again, and the voltage rose high, the
insulation breaks down and makes two foils short-circuited and start to generates heat,
or the power transistor pumping the high voltage into the capacitor burns-out.
If the capacitor over heat it would explode. (In fact, the situation is always the same
where ever electrolytic capacitor was used — such as even an audio power amp.)
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The remedy to this situation is, the same as to initialise a capacitor in a factory.
= slowly charge up the capacitor while waiting the insulating coat grows on the
surface of the aluminium foil (in its anode-side, hence it called Anodisation.)
—– To do this, professional people use variable transformer (Rheostat) and sloooowly
rise the voltage while giving hours of time.
(If you try, — You need to constantly measure the voltage of the capacitor —– first
second or two of switch-on, when you see the voltage rise to 5~10 V, then switch-off — if
the voltage shows “slowly” dropping, switch on again to see it reach to 15 V —- then
switch-off and wait till it’s drop to 10 V and switch on to 20 V again (like two step
forward, one step back) —— in this way until it reached to more than 300 V then to
the full —– all the process will takes hours ! 🙂 or 😦
—– But if you see the voltage drops rather quick, and never rise above
the certain voltage, don’t push it further, and you have to
accept that the capacitor is already dead ! —– Sorry about 😦
(still better than to see it exploded in messy manner.)
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In another approach, if the capacitor could be disconnected from the charging circuit.
(But this is only for the experienced person.) —– Use the main AC power.
Connect a Rectifier to live, and 100 K (may be reduced to 50 K, 10 K on the later stage)
register to neutral. And use this rectified direct current to charge up the capacitor.
In the first few seconds, when the capacitor’s voltage rose to 10 V, then disconnect.
When voltage was dropped to 5 V then charge it to 15 V (Keep a distance of up and
down proportional —– repeat this again and again, while time to time having a break
(to have a cup of tea 🙂 and make a capacitor to regain a potential to charge-up to
higher voltage) and slowly bring the voltage to the full.
From the main voltage in Europe, rectified voltage would be 310 ~ 330 V, about the
same voltage of the working flash. But in the US 110 V, it’s needs to use voltage
doubler circuit. And a fully charged capacitor of 1000 microF, 2000 microF has an
energy to evaporate a tip of screw-driver, if it was short circuited — and hell like Bang!
= Before you do any work, always DO NOT FORGET to discharge the capacitor
through 5W 1K register.
(If you couldn’t understand what I’m talking here straight, DO NOT attempt to try this !
—– to touch AC main, 200, 300 V DC is killingly dangerous for amateur !
(Accident happens in a completely unexpected moment, in an unexpected situation.)
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Assuming the capacitor is working perfect, the rest of the flash circuit is rather simple.
The thick two cables from capacitor were connected to the both end of a flash tube.
And an additional cable was attached outside of flash tube = this is the trigger which
receives 3000 V or higher voltage pulse. —– To trigger this very high voltage pulse, a switch
inside of camera shutter-mechanism used to short circuit a small capacitor in the primary
side of trigger coil, then in the secondary side 3000 ~4000 V pulse will be produced.
But now-a-day, sophisticated electronic camera can not take such high voltage, —– instead,
a trigger to flash was done by low-voltage signal.
= (In another word, to connect very old flash to a modern DSLR is highly risky.
(If you got Test Meter, you can measure how high the trigger voltage of the flash, on the
connector of Flash extension cable. If it shows more than 15 V, (it could be as high as 100 V),
never use it direct to the camera = Use a Slave trigger.)
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Once you understood the structure of flash-light, to modify it, is not very difficult.
My Ring flash on the photo was made to take the power from Brown F900 power pack
but before it was connected to Kako hummer-head flash. As long as it receives 300 ~ 350 V,
it will flash and the light-intensity is depend on the size of the capacitor.
(By the way, Flash-tube’s life is also limited ! = Don’t expect it works for ever. 😀 )
(That Ring Flash Tube can take, up to 200 WS = C x V-square x 1/2 = Wat-Second
such as—–1000 microFarad x 315V x 315V x 1/2 = 50 WS = GN may be about 25~28 though
it’s all depends on the efficiency, size of the reflector, how old the tube is, etc. etc.)
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Color of Flash-light
As now, photography is open to anybody and bast majority of the camera user has no
interest to the technical aspects surrounding the photography, while expecting the
manufacturer provide everything what they needs perfect.
Hence, they don’t even care whether it is DSLR or Phone-camera.
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So, everybody believing flash-light is the flash-light and all same. Though, it is not true
—– some are more blue. Even a professional studio photographer may not noticed but
just believing “As long as they buy reputed studio flash, it is the industrial standard”.
In certain extent, it is true. The quality of the flash has been really improved. (and
became very cheap.) 😉
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The photo above, they are the flash-tube, most left came from Bowens. (are they still exists ?)
Second is Balcar’s —– (mind you this tube alone costed £200 !) Third is for ring flash-light.
(This is the Ring-flash I made for the photos which was published in the Zoom Magazine.
= Ring Flash for Fish-eye Lens. —– Since, the subject was over-shadowed by the camera itself,
it was necessary to illuminate ! Still, the lens has 180 degree of view, flash has to be exactly
in the same plain of the lens-front. = If the flash was before the lens, it will be in the picture.
If it was behind the lens, the shadow of the lens will appear in the picture. 😀 )
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Though, this flash-tube was very blue (about 6500 K) I needed to use a Kodak Color
Compensation Filter inside of flash. — Most of the flash produces 6000 K Color-temperature.
Though, the standard of the Printing Industry is 5500 K, so that photo above, Bowens tube was
gold color tinted to warm-up the color a bit. This slight difference makes the skin-tone better.
= So, you may try to tinker the flash-light, such as stick a cello-tape on the flash face and put a
red line of maker-ink (never draw an ink direct) —– it would make
the faces in a party looks more drunk. 😀
Home-made Light-stand (2) — Copper Clad Cable Spiral Lamp
This Spiral cable Lamp was the earliest I made in England. While stay in London, I used a
Film Labo’ where many Japanese photographer were taking their film to be processed.
Photographer is the observer of the world and the human life. And the people who is
developing their films are yet another kind of the observer. —– By watching the subjects
in my film, the owner of the Labo’ seemed to have noticed who I am, and asked me
“Do you know electronics ?” “Yah, a bit” “Do you know about this machine ? Can you repair ?”
—– It was a hefty spot welder. Hefty because of it got really hefty transformer inside, still
its structure is rather simple. “OK, I’ll check it with my tool tomorrow”. = Next day, I found
the welder’s brake down was caused by a micro-switch in the timer controller and I replaced it.
= Here, working again. The owner was very impressed, not only a photographer carrying a
test equipment but actually able to repair the machine. (He knew, knowing and able to do is
not the same thing.) “OK, in exchange, you develop those 10 films free” “Oh, sure”
I like a kind of relationship which doesn’t involve a money = I help you, so you help me.
And I started to use their small room in their studio as my office and in exchange, if
anything repair kind of needs happened, I’ll help them. Almost like an in-hose engineer. 🙂
(That’s how I got an experience to deal with 2500 V, 5000 WS studio type flash etc )
But to carry out some repair, in a awkward corner of the big studio space, or under the film
processing line, I needed to have a work-lamp. I made this Spiral Lamp of which all the
materials were piled up in a corner of the studio where used be a huge vegetable storage
in a corner of “used to be the Covent Garden Flower and Vegetable Market”.
(So, I know the Before and After of the Covent Garden Market ! 🙂 )
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Copper Clad Cable is not common Japan where the main voltage is 100 V. So, I first seen it in
this country. The cable was covered by a copper tube hence it is quite solid and fire resistant,
still having certain flexibility or able to bend. Most of work lamp was wire caged to protect
glass light bulb = so, I got an idea to use this cable itself to make protective cage around the bulb
—– then wall mount switch-box was fixed as its base. (Socket was fixed to the end of the cable
using Epoxy glue). —– this is yet another minimalist’s approach though, all what we need are
there and perfectly functioning. It may looks odd and a bit awkward to change a bulb though,
it worked perfect for my purpose. Is there anything wrong with it ?
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PS : A quite few people, even the electrician who came to my room to re-wiring and the readers,
questioned me, how I could make the Spiral so neat ? = Cable (Piro) was first close wound around
a gutter-pipe about 8 cm, then it was pulled and expanded. Then both end was bent to the
wanted shape. (Of course, the both end, the copper tube was peeled off and the conductors =
two cable were covered with proper insulator sleeves and made proper electric connection.)
Though, I wouldn’t encourage the reader to do this kind of work, unless the person got enough
skill like a qualified electrician. To play with main power is a very dangerous business. It kills.
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Zen in Action (3) — Latent Thinking
At moment, I’m in chaos of shifting the mountain of boxes again. Some of the regular readers
may remember, I said the same before, though it was for fitting new window but this time it
is for electric re-wiring. It’s mean, I have to shift those to the window-side to vacate the
wall-side for the electrician to access all the power-points, switches etc. (I’m not happy at all.
= so-called Electric safety standard has been changed and they say all the system has to be
kept-up, blah blah = keep industry busy to make money, but I’m dubious about
why the contract has gone to this company.)
So that, fortunately or unfortunately, I had to dig-up the boxes berried to the bottom which
I haven’t seen since when I moved to here.
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In common-sense, people only has what is essential to the own immediate life, the essential
for the daily life. —– ideally a Buddhist remained in their bare minimum though it’s the matter
of how the person define who he is = a Buddhist bikku (literally a beggar who forsaken all his
possession for a sake of seeking the truth) may needed to have one cloth to cover his body and
one bowl to receive food (then to drink, and take a water to wash himself etc.)
—– in this context when I found that the followers of
Lord Buddha had umbrella, I was very surprised (let alone the umbrella had been already
invented then ! —– this sort of analysis would lead to see the timing when Agama Sutras was
written, or its authenticity.)
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In fine day, still carry an umbrella for if it starts a rain, or carry a bowl in case if anybody
offer a food are all in the speculation (may happen but not on that moment) = in other words,
it’s only in the mind. I wonder what Lord Buddha instructed to this matter to his followers ?
So, the teaching of “Live in the Moment” include the situation “Could happen next moment” too.
So, I carry a mountain of material to make something which could happen in any moment. 😀
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Don’t cling to your thought but leave the matter to the Dharma (occurrence of the Karma).
This “thought” meant be a kind of thinking we are doing in lingual form. —– as a matter of fact,
as Neuroscientists found that 90% of our thinking has been done subconsciously without convert
it to the lingual form. Even when we are in Mushin and totally occupied by one action, our Brain
is still in full working state unless we choose to have meditative state.
This “subconscious thinking” is no other than what we call [intuition], [hunch], and often giving
an [insight], or [inspiration] and those are the very “Latent Thinkings”.
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In comparison, what we learned in lingual form such as somebody’s words or what we learned
from the books will stay as the lingual memories.
We can say “I understood” is in fact, lexical understanding of an abstract notion of the word and
its meanings but not what it is in practice.
But what we experienced and learned in real life always carries the tag of emotion yet this
emotion is very difficult to convert and express in the words, because the tag in the emotion is
a part of the said “Latent Thinkings”. In most of the case, lingual memory stay like a distant
objects and not necessary relate to the emotion hence, it is not necessary takes a part
in the “Latent Thinkings”.
The words “Be careful, it’ll bite you” stay as the words until after you were actually bitten =
Then, it will be imprinted into your subconscious with a pain, and “Be careful” become part of
your “Latent Thinking”.
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This is the very reason why actual practice or experience is so important to our life, and what
Lord Buddha said “Don’t believe what others said but think yourself”
(better still through experiences).
—— (One of my Kinetic Sculpture “Cupidon / Archer” which was made mostly discarded material
—— I’ve picked-up, such as aluminium angles etc. Except an Air-pomp (yellow one) I bought.
—— The motor came from a Cooling-fan ) (Moving image is in youtube —> Click right column)
—– through experiences since my childhood, I knew, such as an aluminium angle is so useful
to make a structure, or such as a discarded printer contain very useful motor etc. = I collected
and stashed them in my room = hence made mountains of junks. So, when like this unexpected
situation occurs, I have to work hard to shift the boxes.
—– bad still, it’s an unusually hot summer.
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