Electronic Test Equipment
View allAll Photos Tagged oscilloscope
After months of sending signals out into the universe, the little adventurer finally gets a response...
Skippy envisioned his universe with the help of the following stellar creations:
THOR's The Old Shed, Old Books, Vintage Radio, Travel Memories Map, which are all part of The Summer is Gone Collection!
THOR's Flea Market Table!
Action's Satellite Dish and Holdable Camera!
llorisen's Ham Radio, CB Microphone, Signal Tracer, Power Supply, Decade Condenser, Oscilloscope, and Signal Generator!
Soy's Alley Garden Shabby Stands!
And the little man wears the cool new APEX Boots,
created by VALE KOER!
See you in the stars, my friends!
Der Sekretär musste eine (kleine) Reparatur an seinem geschätzten alten Oszilloskop vornehmen. Und als er es schon offen auf dem Tisch hatte, konnte er nicht anders, als das Innenleben zu portraitieren.
---
Secretary had to make a (minor) repair to his valued old oscilloscope. And when he already had it open on the table, he couldn't help but portray the inside.
“One day I was counting the cats and I absent-mindedly counted myself.”
― Bobbie Ann Mason, Shiloh and Other Stories
Soundtrack : www.youtube.com/watch?v=lKq7UqplcL8
KEDI – OFFICIAL U.S. TRAILER – OSCILLOSCOPE LABORATORIES
Little Billy; folded arms
with Autumn in his eye
watches very carefully
migrating birds as they fly by
he sees the passing of the season
as it passes into Winter
rests on his laurels in No Man's Land
reads a play by Harold Pinter
it's just not cricket I hear him say
sign language read in silence
a grand old house; a resident poet
champagne breakfasts and rocket science
discussions lead to other things
talk of life and death
the time we waste; the time between
Autumn and Winter with bated breath
something happened this Saturday
something light and beautiful
secret though; his lips are sealed
he's loyal and he's dutiful
he's smart as any other street cat
who's thankful he found a home
he watched his fellow felines in
Istanbul where they roam
he laughed with me at all their antics
smart and funny; receiving all they need
charming and enchanting people
so they get fish; no need to plead
they are loved by many humans
they fight; they play; sleep most of the day
at night they wander through the streets
they are safe but still I pray
one day I'll see them for myself
they'll follow me and make me smile
I'll photograph them for my Little Billy
he'll nod wisely then fall sleep awhile
dreaming of the days before
he found a home with me
but we both bless that day's decision
before the weather turned cold; wintry
he decided when the biggest storm
a rolling cloud; day fell to night
in a matter of minutes; it shook this house
gave all my cats and me a fright
no more Winters on the street
for Little Billy; my little darling
he's laying now in the warm sunshine
sleeping sweetly; inwardly smiling.
HAPPY SATURDAY AND EVERY DAY FOR ALL CATS AND THEIR HUMANS! <3
"A cat is for life and not just for Christmas"
- AP - Copyright © remains with and is the intellectual property of the author
Copyright © protected image please do not reproduce without permission
I was looking for Wollensak oscillo lens for a while. Anyone that fits in my budget as they are now quite expensive.
Oscillo-Anastigmat 75mm f1.9 is one I settled on and first impressions are ... It flares easily and not in a good way. If controlled it still may produce very interesting photos.
Part of a replacement head for my shaver. Diffused green light from above and a red LED flashlight. Area is 14mm (0.55”) across.
I tried to get silvery tones of Ilford film. Oscillo-Anastigmat 75mm f1.9 is very fine lens even if it is never made for this kind of photos.
Another oscilloscope lens, but this one is of much higher quality in every aspect. Wollensack Oscillo-anastigmat 75mm f1.9 is a sturdy all glass and metal and quite a big lens with an excellent IQ. Bokeh is rich, pleasing, with a hint of swirl. More controlled, I would say, than HP (Raptar).
In the search of bokeh monsters this is one of those unknown surprises.
Hewlett Packard is not known as lens maker so I suppose someone else made the lens and HP just put its insignias on it as it went with HP oscilloscope. When I compare it to images produced with other 'brand' oscillo-lenses, it is closest to Wollensak Osillo-Raptar.
It is 75mm f1.9 lens with strong lost of sharpens at the edges even closed down, which is expected from this type of oscillo-lens.
But bokeh is rich and painterly. Impressionistic.
I posted the same monochrome image few days ago.
Oscillo-Anastigmats colours a natural and but needs some work in development. As expected for an industrial lens.
There is an invisible tamaris tree in the background. It gives this "air is very hot" look to the bokeh but otherwise lens deleted it.
Hewlett Packard oscilloscope lenses are excellent bokeh lenses and in the right condition very good portrait lenses. It is not really useful for anything that is further apart. Definitely not a landscape lens.
However, for shots that are build on atmosphere, character, imperfections it may give very pleasing results. Definitely an wabi-sabi lens.
Wollensak Oscillo-Anastigmat 75mm f1.9. A very fine, maybe one of the finest industrial lenses for photographic use.
This is my oscilloscope, I thought of it for the letter O in another challenge. Couldn't get a decent picture in 3 inches. I hooked a transducer to my mp3 player and got this wave form. This is the prelude, Also Sprach Zarathustra 1 minute in. Flickr Friday theme Waves.
(No, not the Disney/Pixar computer-animated character.)
This is buzz track, an alignment film for 35mm optical soundheads. Each toothed pattern on the sides of the black stripe produces a square wave, which appears as a sharp buzzing noise when played through speakers. (By the way, playing a square wave through a speaker, except at a very low volume, is an excellent way to destroy it.) An oscilloscope is recommended instead of speakers for the task.
The track is spaced so that when the soundhead's lateral (left/right) guide roller is adjusted properly, neither track should be picked up. A higher-pitched buzz (and, possibly, a motorboat-like sound from the sprocket holes) will occur if the film is guided too far leftward; too far to the right, a lower-pitched buzz will be generated.
More flower bokeh with Hewlett Packard 75mm f1.9 oscilloscope lens. With no sunshine and pointy light sources it gives this smooth watercolourish bokeh. Wide open is too soft and glowy so it needs to be closed at least a little bit. Fifteen blades help.
The Tektronix Type 545 oscilloscope, introduced in the 1950s, is a vacuum-tube–based laboratory instrument used to display and measure electrical waveforms. It features a large CRT display, wide bandwidth for its era, and modular plug-in vertical amplifiers, making it widely used in electronics research and education.
Wollensak Oscillo-Anastigmat 75mm f1.9.
Focal distance of 75mm speedy aperture and right background create smooth, but not boring bokeh.
Note. This lens is sharper than it looks on my photos. I shoot handheld and it is always windy in my neighbourhood.
Hewlett Pakard 75mm f1.9 is industrial oscilloscope lens. Looks ugly all plastic. According to Kevin Pinkerton who gave me this lens, it is the same design as Wollensack Raptar, and maybe even made by Wollensack. He knows his industrial lenses much better than me.
Anyway, it dreates beautifull rich, creamy, sharp enough photos. It is similar, yet distinct from Wollensak Oscillo-Anastigmat.
Yet another flower bokeh with Wollensack Oscillo-Anastigmat 75mm f1.9. CLoudy day giveth smooth bokeh.
For Macro Mondays, topic - measurement
So we have this Oscilloscope sitting around.... my husband and son both being Amateur Radio operators, and the family being scientifically and/or artistically oriented, in general.
Oscilloscopes are used to observe the change of an electrical signal over time, such that voltage and time describe a shape which is continuously graphed against a calibrated scale. Essentially, it measures wavelengths of things.
This is a part of a small panel, which is one of several panels, on the front of the instrument. Below I include the panel with a ruler, and the entire oscilloscope with a ruler. (The entire top part of the instrument, anyway... there are more instruments underneath, on the lower shelves of the cart.)
So, Happy Macro Monday everyone, HMM!
Exploring bokeh of Wollensak oscilloscope lens. It tends to be on the mild side softening the out of focus area. But it is not a shy lens. When some light sources are present in the background the strong bubbly balls of confusion appears with ease.
Wallensak Oscillo-Anastigmat 75mm f1.9. As expected from the lens that has 75mm focal distance, quite fast and seems to be of some double gauss optical design, bokeh tends to be smooth. To me it seems that quirks from optimisation for oscilloscope screen are less evident than some other oscilloscope lenses I've seen.
Wollensack Oscillo-Anastigmat 75mm f1.9 is an industrial lens, far from optimized for general photography, but is growing on me rapidly. From the look of the bokeh it seems to be of some double gauss design. It swirls. Not as much as biotars (hellioses),
but still noticeably when conditions are right. When the focus is not missed it is very sharp. One of the sharpest I have. Colours and contrast are to my liking. I tend to avoid flares with it.It has some bluish coating which helps with contrast and colour even on cloudy weather. Not much with flaring
Monochrome rendering with Oscillo-Anastigmat 75mm f1.9. It seems a bit easier to focus with this lens than some others of similar focal distance and speed.
On the other side it is more difficult to find right lighting.
Wollensack Oscillo-Anastigmat 75mm f1.9 is an industrial lens, far from optimized for general photography, but is growing on me rapidly. From the look of the bokeh it seems to be of some double gauss design. It swirls. Not as much as biotars (hellioses),
but still noticeably when conditions are right. When the focus is not missed it is very sharp. One of the sharpest I have. Colours and contrast are to my liking. I tend to avoid flares with it.It has some bluish coating which helps with contrast and colour even on cloudy weather. Not much with flaring.
On a walk in the neighborhood we passed by some bird of paradise flowers.
I took this backlight shot with a Wollensak 3" 1:0.9X Oscillo Raptar 75mm f/1.9 lens. This is a large format vintage lens from the 1950th, used in a contraption to take photos of oscilloscopes. It produces a distinct swirly bokeh.
See photos of the 3D-printed adapter on the Quality HDR Photography Facebook page at bit.ly/3ptIC73.
I processed a soft and a photographic HDR photo from a RAW exposure, blended them selectively, and carefully adjusted the color balance and curves. I welcome and appreciate constructive comments.
Thank you for visiting - ♡ with gratitude! Fave if you like it, add comments below, like the Facebook page, order beautiful HDR prints at qualityHDR.com.
-- ƒ/1.9, 75 mm, 1/1000 sec, ISO 100, Sony A7 II, Wollensak Oscillo-Raptar 75mm f/1.9, HDR, 1 RAW exposure, _DSC8574_hdr1sof2pho1e.jpg
-- CC BY-NC-SA 4.0, © Peter Thoeny, Quality HDR Photography
Before the COVID lockdown I joined a Zen meditation class at Hakone Gardens, a beautiful Japanese garden in Saratoga, California. Today we went to visit this inviting garden again. A magnolia tree right at the entrance is currently covered with beautiful flowers.
I took this backlight shot with a Wollensak 3" 1:0.9X Oscillo Raptar 75mm f/1.9 lens. This is a large format vintage lens from the 1950th, used in a contraption to take photos of oscilloscopes. It produces a distinct swirly bokeh. See photos of the 3D-printed adapter on the Quality HDR Photography Facebook page at bit.ly/3ptIC73.
I processed a photographic and a balanced HDR photo from a JPG exposure, blended them selectively, and carefully adjusted the color balance and curves. I welcome and appreciate constructive comments.
Thank you for visiting - ♡ with gratitude! Fave if you like it, add comments below, like the Facebook page, order beautiful HDR prints at qualityHDR.com.
-- ƒ/1.9, 75 mm, 1/8000 sec, ISO 200, Sony A7 II, Wollensak Oscillo-Raptar 75mm f/1.9, HDR, 1 JPG exposure, _DSC9194_hdrj1pho1bal1g.jpg
-- CC BY-NC-SA 4.0, © Peter Thoeny, Quality HDR Photography