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Tuesday, October 4, 2016

Hoya reimagines the neutral density filter to correct odd color casts

Neutral density filters are often necessary for shooting long exposures or using fast lenses with cinema cameras, but they are also known to cause odd color casts that need to be corrected in post. Hoya's latest photography accessory aims to correct that color shift by combining a neutral density with an infrared filter. Introduced Monday, the Hoya Solas IRND neutral density filters are designed for both still and video cameras.

Neutral density filters act as a pair of shades for cameras, blocking light to allow the photographer to achieve a wider depth of field or a longer exposure even in brightly lit scenes. IR filters, on the other hand, are used to get an unusual and almost otherworldly look by shooting with only infrared light.

Related: Want to eliminate odd color casts from an ND filter? There's (another) filter for that

The Solas uses the neutral density in the traditional sense — to block out light. The infrared aspect of the new filter, on the other hand, isn't intended to get that characteristic infrared look, but instead blocks light from the red end of the spectrum to create an image with more accurate colors.

Hoya says that, along with achieving more accurate colors, the filters block out red noise and color shifts that occur from getting too much infrared light into an image. The color correction, red noise, and red color shift correction that the filter corrects helps photographers and videographers to save time in post, the company said.

Manufactured in Japan, the new filters will be sold in eight densities, covering a range from a one-stop to ten-stop light reduction. The Hoya Solas filters will be sold in sizes of from 49 to 82 mm, with the 1.8 and 3.0 density filters also fitting 46mm lenses.

Sold exclusively in the U.S., the Solas filters are available now, with list prices starting at $48.90.


Source: Hoya reimagines the neutral density filter to correct odd color casts

Monday, October 3, 2016

Infrared Mouse Camera

When YouTube user mrfid72 discovered evidence of a little critter occupying his shed, he did what every maker would do and set up a Pi camera to catch all their nocturnal antics.

Using four ultrasonic units to create a barrier around his rat trap, Mr. Fid set his Pi to take a high-resolution, timestamped photo alongside two minutes of HD video whenever the distance between the units was shortened by a furry obstruction. The Pi also turned on an infrared light to better catch the action.

Images are then emailed directly to a predetermined address, while all footage is uploaded to a web page via FTP, allowing Mr. Fid to check up on any prerecorded action in the shed whenever he wishes, providing he has internet connectivity.

He continued to record the mouse over several nights, each day reviewing the footage to understand how the mouse was foiling his trap to obtain the delicious treats within. 

Follow the action via the video below, right to the end where OMGIT'SSOCUTEANDFLUFFY!

Raspberry pi infared Mouse Cam.

Raspberry pi infrared mouse camera. using 4 ultrasonic units to measure the distance around a rat trap, as soon as the distance is shorten by an obstruction then the raspberry pi firstly turns on the IR light source, then takes a low resolution time stamped photo, then a big picture followed by two minuted of hd video.


Source: Infrared Mouse Camera

Saturday, October 1, 2016

The Low Light

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The Low Light

I'm beginning to see that infrared photography works best in the low light, out of the sun. It picks up the subtle power of light, but can also be overwhelmed by too much of it. This morning, when we opened the pasture gates, Chloe paused to greet Maria, and the two said good morning. The photograph captured the softness of the scene, it was cloudy, there was no bright sun. I'm going to explore this idea of low light.

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    Friday, September 30, 2016

    See The Light

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    See The Light

    An infrared photo, I converted it to black and white and I love the way it captured the unseen light out in the pasture and the sky. It inspired me, I want to get a full-frame infrared camera, it will take me awhile to get the $4,000 I need. Some things are worth waiting for.

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    Thursday, September 29, 2016

    Art Hounds: Show looks at old farmhouses and Ezekiel's wheel

  • Listen Story audio 4min 10sec
  • Painter and Ridgewater College professor Andrew Nordin is interested in Northfield Arts Guild's new exhibition "Sacred Space," featuring the work of painter Michon Weeks and photographer Patrick Judd. Weeks juxtaposes everyday tools with the Old Testament prophet Ezekiel's visions of a wheel. Judd investigates rural decay with infrared photography, giving the landscape a ghostly appearance. "Sacred Space" runs from Sept. 29 through Oct. 29 at Northfield Arts Guild. There's a reception for the artists on Friday.

    Dancer and found-object artist Kathryn-Sonja Inoferio recommends Jawaahir Dance Company's new production "Shoma," an evening of Middle Eastern dance and music. This performance focuses on dance and music from the Gulf region. The dance follows a narrative — women are gathered for a pre-wedding henna party, to which the storyteller Shoma has been invited. Someone plots to ruin the wedding; Shoma attempts to use her storytelling skills to avert disaster. Performances run Sept. 29 through Oct. 2.

    Jay Peterson, co-editor of "Sky Blue Water: Great Stories for Young Readers," is looking forward to this weekend's Arab Film Fest, put on by Mizna. Peterson says the Arab Film Fest is an opportunity to see captivating works of art while also gaining a better understanding of a region that's dominating the news. Peterson is particularly excited to see "Iraqi Shorts + Iraqi Voices," which pairs short films from Iraqi filmmakers with some made here in Minnesota. The Arab Film Fest runs Sept. 29 through Oct. 2 at St. Anthony Main Theatre in Minneapolis.


    Source: Art Hounds: Show looks at old farmhouses and Ezekiel's wheel

    Wednesday, September 28, 2016

    Through The Apple Tree. The Unseen World

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    Through The Apple Tree

    I took this photo with the Infrared camera, a view through the leaves of the apple tree down the road and into the sky. Infrared photography is the photography of the unseen, it sees on the light spectrum beyond the human range and captures the true light.

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    Tuesday, September 27, 2016

    Favorite American Foods Emit Radiation: Pizzas, Hot Dogs And More

    First Posted: Sep 27, 2016 06:29 AM EDT

    Food photography reached a new height recently when New York-based artist Brea Souders collaborated with VSCO, an art, and tech company, to create a series of thermographs that capture the radiation emitted from popular American foods. On the list are all time favorites, which are not just restricted to the US, such as pizzas, hot dogs, and fries among junk/fast foods.

    According to the company, thermography is a scientific procedure that detects infrared energy emitted from objects and converts that energy to relay temperature, and then showcases that data as an infrared photo known as the thermogram. The result is a series of pop art like images that show the amount of radiation emitted by some of the most favorite foods in the US, as their temperatures increase.

    "This is accomplished through the use of a thermal camera, which, unlike the human eye, can see the infrared spectrum and deliver a visualization of how heat is distributed," stated VSCO. "A quality camera will record a specific temperature for each pixel in the image, with an accuracy of plus or minus 2 °C."

    As a result of the photographs, you can now see how your Sunday brunch looks when captured thermographically, and how much radiation each food item is brimming with, even if it was not heated in the microwave. However, as per a report, there is nothing to be really worried about as we have contact with infrared radiation every day, it is simply heat. Moreover, all objects that have a temperature more than absolute zero emit electromagnetic waves. It is only when you touch an item that is exceedingly hot or looks at an infrared radiation source for too long that it can become dangerous.

    Incidentally, infrared thermography is usually used more often by firefighters or military for dangerous situations. Doctors also resort to thermography for breast cancer diagnosis. For now, you can take a look at some of the food items captured with thermal photography.

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    Source: Favorite American Foods Emit Radiation: Pizzas, Hot Dogs And More