View allAll Photos Tagged oscilloscope

Wollensak Oscillo-Raptar 3" 75mm f1.9 - Oscilloscope lens

Wollensak Oscillo Raptar 75mm f/1.9 Oscilloscope lens.

Wollensak Oscillo-Raptar 3 inch 75mm f1.9

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!

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak 3" 75mm f1.9 Oscillo-Raptar 1:0.9X

Wollensak 3" 75mm f1.9 Oscillo-Raptar 1:0.9X Oscilloscope camera lens.

 

Wollensak "3 inch" 75mm f1.9 Oscillo-Raptar 1:0.9X

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.

Wollensak 3" 75mm f1.9 Oscillo-Raptar 1:0.9X Oscilloscope camera lens.

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak "3 inch" 75mm f1.9 Oscillo-Raptar 1:0.9X - lens from vintage Oscilloscope.

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak Oscillo-Raptar 75mm f/1.9

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.

“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

Wollensak Oscillo-Raptar 75mm f/1.9 Oscilloscope lens.

Part of a replacement head for my shaver. Diffused green light from above and a red LED flashlight. Area is 14mm (0.55”) across.

Wollensak Oscillo-Anastigmat 75mm f1.9. A very fine, maybe one of the finest industrial lenses for photographic use.

A multi-turn control knob on a Tektronix 465B oscilloscope. The knob, one inch (25.4mm) in diameter, operates a potentiometer (variable resistor) that requires ten full revolutions of irs shaft to cover its entire resistance range, allowing finer adjustment than a standard potentiometer with a ¾- to ⅞-turn range.

(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.

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.

Just a couple of bokeh photos with Wollensack Oscillo-Anastigmat 75mm f1.9.

Wollensak Oscillo-Raptar 75mm f/1.9

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.

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.

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.

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.

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.

Wollensak Oscillo-Raptar 75mm f/1.9 - Oscilloscope lens.

Wollensak Oscillo-Anastigmat 75mm f1.9

Yet another flower bokeh with Wollensack Oscillo-Anastigmat 75mm f1.9. CLoudy day giveth smooth bokeh.

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

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

Wollensak Oscillo-Raptar 75mm f/1.9 - lens from Oscilloscope

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!

Wollensak Oscillo-Anastigmat 75mm f1.9 and a bit of swirl?

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak Oscillo-Anastigmat 75mm f1.9 SOOC in very nice but difficult light.

Wollensak Oscillo-Raptar 75mm f/1.9

Wollensak Oscillo-Raptar 75mm f/1.9

Just another bokeh with Oscillo-Anastigmat 75mm f1.9. This one is a bit more engaged but still quite mellow.

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.

1 3 4 5 6 7 ••• 79 80