Mathieu Stern’s Ice Lens

This is a very interesting project by Mathieu Stern to make a lens from iceberg ice/glacier, which can be very clear since air pockets and impurities can be forced out of the ice over time. I am curious if a lens made from the center of a large iceberg could make a clearer picture since that ice sample would be the clearest or an ice core from Antarctica.

Shooting photos using an ice lens was my dream for almost 2 years. After some research I saw that almost no one ever tried this crazy idea, mainly because it’s hard as hell to find pure ice, and even harder to get a clear image.

So I had the choice to give up on my idea because it was too hard, or to just level up in the craziness. If it’s hard to find pure ice in my city, maybe I should go where I could find some 10 000 year old pure ice : Iceland’s famous ” iceberg beach”.

The night before the experiment, there was a huge storm, all the icebergs were dragged away from the beach, so we had no choice but to wait some days.

Three days later, we arrived on the beach at 5AM and had the chance to see some huge icebergs all over the beach.

We stayed there for almost 6 hours in the cold to create… only one true working ice lens.

Now the facts :
– First of all the life-span of a lens made of ice is very short, so you can’t move very far from where you create the lens.
– Focusing is extremely hard because of the water melting on the lens itslef.
– Shaping one ” lens” takes 45 min because of the ambiant cold.
– If your lens breaks in the mold, you have to start all over again
– I hacked a Japanese cocktail ice ball maker to create half spheres.
– The housing of the lens was made using a home made 3D print model.
– All photos where shot during the 1 minute of the last ice lens.
– The video at the beginning of the video was shot in the last usable seconds of the last ice lens.
– No I didn’t ruined my camera with water damages, even if it was pretty dangerous, I managed to keep the inside dry.

Now if people asks me “Are you happy with the result ? it’s a bunch of blurry photos !?”, my response would be : “this project is a scientific, artistic and poetic project, I never imagined the result would look like the photos that comes from an ultra modern lens, but I was amazed by the strange beauty of the images I made with the first ever 10 000 year old lens.”

This is not a project for everyday photography, it was an adventure and a bet that when you have a crazy hypothesis, you should do everything to experiment it in the field.

You can check the photos in full HD here : https://tinyurl.com/y7k6pz4b

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Confused About Sony’s RX100 Line up? This Might Help.

Explora did a post about all of the currently available Sony RX100 cameras, which includes the above spreadsheet for reference. You can find even more information in the post here.

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Rokinon 85mm f/1.8 Preorders Start


The Rokinon 85mm f/1.8 Lens for Sony can be preordered at B&H Photo and Adorama.

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Metabones Launches Contax N-Mount Speed Booster ULTRA and Smart Adapter


Metabones Contax N-Mount Speed Booster ULTRA Smart Adapter:
B&H Photo / Adorama
Metabones Contax N-Mount Smart Adapter:
B&H Photo / Adorama
Contax Lenses:
Amazon

Vancouver, Canada, September 10, 2018, Owners of legendary Carl Zeiss optics in Contax N-Mount have long demanded a trusted migration path to mirrorless cameras. With the advent of Metabones® Contax N-Mount to Sony E-Mount Speed Booster® ULTRA and Contax N-Mount to Sony E-Mount Smart Adapter, the longing is over.

Built upon the foundation of Metabones’ past success, phase-detection autofocus on A9, A7R Mark III, A7 Mark III, A7R Mark II, A7 Mark II, A6500 and A6300 not only offers pinpoint accuracy but also AF speed significantly surpassing the original Contax N series AF cameras. (Tailored to single-lens reflex cameras with a traditional phase-detection autofocus system, Contax N lenses are not compatible with contrast-detection autofocus mirrorless cameras such as A7S Mark II.) Read More »

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Sony a7SII: Digital Night Vision vs Analog Night Vision

Digital night vision hasn’t caught up to analog cathode tube yet, but it’s getting very close. T.REX ARMS tested the Sony a7SII with its IR block removed to make it perform better in low light, against the analog Armasight by FLIR PVS14 and the Sony a7SII was actually competitive with the PVS14 when there was a little light present in the environment. The analog PVS14 was only able to outperform the Sony a7SII in extreme low light conditions, but not by much.

The PSV14 also had an advantage since it comes with a 26mm f/1.2 lens attached, while the Sony a7SII only had a Sony 50mm f/1.8 lens. T.REX should have performed this comparison with a f/1.4 Sony lens to better compare the difference between the PSV14 and a7SII. The Sony a7SII performed significantly better with a little light present and it can see in color, which the PVS14 cannot. The Sony a7SII was also set up for auto exposure and might have performed better if setup entirely manually.

It’s interesting how close these technologies are getting and I am sure digital will surpass analog for this nitch application in the near future. It’s entirely possible that the new Sony a7SIII could outperform a PSV14, but we will have to wait and see. Overall this is a very interesting demonstration from a channel that does not focus on photographer or videography/cinematography.

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DPReview: Sony Photokina 2018 Interview


There have been lots of Photokina interviews to cover and each has its own points of interest. DPReviews interview with Kenji Tanaka, VP and Senior General Manager of Sony’s Business Unit 1, Digital Imaging Group and it’s a good one. Below are some excerpts:

  • ‘I don’t care about competitors, I care about customers’
  • Sony want’s to satisfy the needs of all photographers
  • Recently they made a lot of sports photographers happy
  • Sony is the largest sensor manufacturer
  • Their stacked sensor is unique but everything associated with it has to be high quality too take advantage of the sensor
  • Sony isn’t trying to switch DSLR users to mirrorless they are trying to make new customers
  • Sony wasn’t surprised that Canon and Nikon entered the mirrorless market because it’s an area with a lot of innovation to come
  • The fundamentals of mirrorless are Lenses, image quality, speed, and battery life (Some of their competitors struggle with battery life)
  • Sony is focused on getting full frame mirrorless right before possibly moving on to larger formats
  • Some customers want small high quality primes like the 24mm f/1.4 and Sony plans to produce more
  • APS-C is still a big market for them and they will continue making bodies and lenses even though they have been focused on Full Frame lately
  • APS-C is important for portability and ease of use
  • They need to find out what customers want from an APS-C camera
  • They aren’t differentiating between lenses for APS-C and Full Frame at this time
  • Many APS-C customers buy Full Frame lenses
  • Sony is still working on improving their weather sealing
  • Sony hopes the price of cameras like the a7III will come down so that anyone can buy one
  • The Sony a7II recently reached $1,000 and that made some customers happy
  • Processing speed is a limiting factor fully utilizing SD UHS-II
  • In the future current SD technology won’t be enough for future technologies like 8k/30p
  • Most customers want two SD card slots
  • E-mount is open so there is going to be competition that benefits customers
  • They are currently working on a new Sony a7S but it will take time because they want to exceed expectations
  • Current Sony a7SII users want 4k/60p, 4:2:2 10-bit, battery life, AF performance and more
  • Sony doesn’t think the next S should be all about video because the current ones have great dynamic range and are good for photography too.
  • Sony wants to use AI to let their users focus on things like composition instead of focal points

via DPReview

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