Which Helios is the best?

Re: Which Helios 44 for best swirly bokeh? The 44-2 would probably be the most readily available and will give you the swirly bokeh you’re looking for. I’d recommend the orginal Helios 44 with 13 aperture blades if you think you’re ever going to stop down.

In the same way Are Helios lenses radioactive?

This lens is not radioactive.

Subsequently, How old is Helios 44? A look that is one of the main reasons you’ve probably heard of this lens already. And there you go, the history Behind the Helios 44-2, produced from 1958 through the early 90s.

Who is Helios the son of?

In Greek mythology, Helios is the offspring of the titans Hyperion and Theia. His sisters were Selene (the Moon) and Eos (Dawn). Hesiod informs us in his Theogony that with Perseis, daughter of Ocean, he had two children, Circe and king Aietes, who ruled at Kolchis.

Why are some lenses radioactive?

Radioactivity in lanthanum containing lenses is due to the intentional inclusion of thorium in the optical glass mix. The presence of thorium can sometimes, depending on the mixture of other elements in the lens, cause moderate to severe browning of the lens elements.

What is a radioactive lens?

Thoriated glass is a glass material used in the manufacture of optical systems, specifically photographic lenses. It is useful to this process due to its high refractive index. Thoriated glass is radioactive due to the inclusion of thorium dioxide, oxide of radioactive element thorium.

What mount is Helios 44m?

Helios 44M-4 58mm F2 Soviet-made Lens M42 mount

What is swirly bokeh?

In the context of photography, it refers to the way in which out of focus areas of an image are rendered by a lens. As you may have noticed, some lenses will blur a background very smoothly, perhaps even producing a swirly effect, while others tend to render out of focus details in a busier way, with harder edges.

Is Helios a Titan or god?

Helios, (Greek: “Sun”) in Greek religion, the sun god, sometimes called a Titan. He drove a chariot daily from east to west across the sky and sailed around the northerly stream of Ocean each night in a huge cup.

Is Helios and Apollo the same person?

Helios is sometimes identified with Apollo: “Different names may refer to the same being,” Walter Burkert observes, “or else they may be consciously equated, as in the case of Apollo and Helios.”

Who was Helios in love with?

Possibly the most famous mistress of Helios was the Oceanid Clymene, with whom he had three (or, some say, five) daughters known collectively as the Heliades, and a son by the name of Phaethon.

Do old cameras have radiation?

Radioactivity in old camera lenses is due mostly to the widespread use of thorium glass elements in the 1940s, ’50s, ’60s and ’70s. … The real threat comes from thorium eye pieces, which are much more rare but would be very close to a very sensitive area.

How can you tell if a lens is radioactive?

But first, how do you know if your lens contains Thorium? If you can see yellowish tint on the glass, this means your lens contains this element. Thorium was used to improve the image quality, but the downside is that it becomes yellowish with time. And, well, that it’s radioactive.

Is it safe to use radioactive glass in a camera?

Most commonly the dose of radiation from using a radioactive lens approaches that of having an x ray at 10 mR/hr. … The eye is very sensitive to Alpha and Beta particles and is easily susceptible to damage from even a small dose from a lens or a camera eyepiece made with radioactive glass.

Which Leica lenses are radioactive?

For the record, thorium (aka Torio) glass was used for elements 1, 3, 6, and 7. These lenses are the unique and collectible “radioactive Summicrons” of lore and legend that tend to acquire a yellowish-brownish cast over time that can be eliminated by extended exposure to UV (that is, sunlight.)

When did Nikon stop using thorium?

Yellowing only occurs in the most extreme cases. Some lenses known to contain thorium oxide in the glass do not emit enough radiation to become yellow, but it’s still more than background level radiation. Apparently, the use of thorium oxide was abandoned by Japanese SLR lens makers by the mid-1970’s.

How do you store radioactive lenses?

Ambient reading from Geiger Counter averaged around 15 CPM. So storing a radioactive lens in glass seems the best budget solution for shielding. Best defense is distance, so the further away the more scattered the radiation becomes.

What mount is Helios lens?

Helios-44 is a Soviet copy of the Carl Zeiss Biotar 58mm ƒ/2 lens produced under the Helios lens brand. The lens is currently made in Russia for the M42 lens mount.

What is the flare defect?

A Lens flare happens when light is scattered or flared in a lens system, often in response to a bright light, producing a sometimes undesirable artifact in the image. … There are two types of flare: visible artifacts and glare across the image.

Why is bokeh popular?

Bokeh, also known as “Boke” is one of the most popular subjects in photography. The reason why it is so popular, is because Bokeh makes photographs visually appealing, forcing us to focus our attention on a particular area of the image. The word comes from Japanese language, which literally translates as “blur”.

Who is Zeus in Bible?

Zeus is

the sky and thunder god

in ancient Greek religion, who rules as king of the gods of Mount Olympus. His name is cognate with the first element of his Roman equivalent Jupiter.

…

Is Helios the son of Perseus?

Helius is the son of Perseus in the 2012 film Wrath of the Titans. He is also revealed to be the only child Perseus had with his wife Io.

Who was the ugliest god?

Hephaestus. Hephaestus is the son of Zeus and Hera. Sometimes it is said that Hera alone produced him and that he has no father. He is the only god to be physically ugly.

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