Luke Kaven

Lives in United States New York, United States
Works as a Researcher/educator, music producer, photographer
Has a website at http://www.lukekaven.com
Joined on Mar 11, 2004
About me:

Researcher/ Educator
President at Smalls Records | www.smallsrecords.com
Featured artist in the HDRI Handbook by Christian Bloch (2nd Ed)

Comments

Total: 241, showing: 1 – 20
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In reply to:

Luke Kaven: The 75mm Leica Business Giftar. Nothing says "I'm desperate for your business favor" like a manly M and Noctilux set.

:-)

Link | Posted on Nov 30, 2017 at 21:51 UTC

The 75mm Leica Business Giftar. Nothing says "I'm desperate for your business favor" like a manly M and Noctilux set.

Link | Posted on Nov 30, 2017 at 02:02 UTC as 53rd comment | 2 replies
In reply to:

Mike Davis: "In fact, their 2018 sensor lineup includes two new MF sensors: a 100MP BSI 44x33 sensor and a 150MP BSI 55x41mm sensor."

100 MP on a 44x33mm sensor = a pixel density of 185.5 pixels/mm, requiring we stop down no further than f/11.3 to secure 5 lp/mm worth of actual subject detail in an uncropped, unreseampled 360 ppi print.

150 MP on a 55x41mm sensor = a pixel density of 257.9, requiring we stop down no further than f/8.1 to secure 5 lp/mm worth of actual subject detail in an uncropped, unresampled 360 ppi print.

In other words, thanks to diffraction, the larger yet denser 150 MP sensor cannot deliver 5 lp/mm worth of actual subject detail in unresampled 360 ppi prints without opening up one stop further than the smaller yet less dense 100 MP sensor.

I'll take the 100 MP sensor and be content with smaller prints at any given desired print resolution goal, to enjoy one additional stop worth of creative freedom, without concern for diffraction inhibiting my print resolution goal.

Regardless, there is plenty of information content in the sub-diffraction layer.

Link | Posted on Nov 17, 2017 at 00:52 UTC

These will find good use in a number of research labs and CGI houses where parallel computing speeds results significantly. Molecular simulations. Drug design. CGI rendering. AI and deep net training. We really do need multicore machines like this as commodities now, especially since the increase in single-thread speed between generations has slowed to a crawl.

Link | Posted on Sep 15, 2017 at 13:19 UTC as 8th comment
On article Nikon D850 Review (2104 comments in total)

DPR - In the Sony sensors (D600/610/750/800/810), we saw bluish-magenta noise localized around certain spots at high-gain settings, causing color cast. [Did black-frame subtractions on the D800 at ISO > 6400 to get noise reduction.] Has Nikon managed to mitigate that in this sensor? What does a black frame look like shot under very high gain?

Link | Posted on Sep 12, 2017 at 01:28 UTC as 270th comment | 1 reply
In reply to:

princecody: Did Sony just kill RED & Arri Alexa customer base with Venice 🤔

Tim, I think you're right about Sony's technical positioning, but I also think there are some culture issues, not unlike those of Mac-PC culture.

Link | Posted on Sep 7, 2017 at 20:27 UTC
In reply to:

Internet Enzyme: What would the crop factor be relative to a full frame dslr?

Not exactly 1 if it's a cinema format. ;-) But practically 1.

Link | Posted on Sep 7, 2017 at 01:35 UTC
In reply to:

princecody: Did Sony just kill RED & Arri Alexa customer base with Venice 🤔

Cinematographers who like the Alexa don't fall over for bits or megapixels. They love the color grading. And they're way into ways to rig it for new Steadicam tech. And they know that Arri is all about cinematography.

Link | Posted on Sep 7, 2017 at 01:33 UTC

Bullet Time video.

Link | Posted on Sep 4, 2017 at 03:36 UTC as 15th comment
In reply to:

LJohnK2: Whether intentional or not, this "news" publically villifies an individual for what amounts to an internal personnel/employment matter. Anyone that knows anything about these types of institutional HR processes knows how problematic and politicized they can be. They all too often fail to meet any standard of impartiality and lack context that is critical to understand what actually happened. The investigators, often external lawyers can be biased, sloppy and interested in anything but truth.

.....so what's next, weekly reports on Amazons internal HR matters listing the names of the institutional offenders ?

So very disappointing to see this on the site.

Not me. This editorial staff is just fine, the best we've had to date. They didn't write the news that every other photo journal covered.

Link | Posted on Aug 12, 2017 at 03:30 UTC
In reply to:

Luke Kaven: The real champion of this is Coco Rocha.

For example: https://www.youtube.com/watch?v=cfl5ZCUgQYM

Link | Posted on Jul 25, 2017 at 21:06 UTC
On article Ten things we're hoping for from the Nikon D850 (482 comments in total)

My number one desired feature is an improved optical finder, something closer to the D5, and engineered for manual focus precision.

Link | Posted on Jul 25, 2017 at 11:54 UTC as 120th comment

The real champion of this is Coco Rocha.

Link | Posted on Jul 25, 2017 at 02:12 UTC as 23rd comment | 1 reply
In reply to:

Luke Kaven: I can't believe the rate-of-climb on take-off! They climb like fighter jets. I wonder what kind of chase plane they were using and how they were set up?

Nice spot! At first I thought "T33, seriously?", but you're right, it is the Canadian T33 variant, and after thinking about it, it's probably the best thing for the job. That airframe has to be over 50 years old. It's interesting to see it chasing its great grandkid around.

Link | Posted on Jun 19, 2017 at 07:30 UTC
In reply to:

Luke Kaven: I can't believe the rate-of-climb on take-off! They climb like fighter jets. I wonder what kind of chase plane they were using and how they were set up?

Possibly the airport shots. I thought there were also some shots taken nearly at cruising speed which would be hard to achieve with a drone or helicopter. Hmm. Maybe I should take another look.

Link | Posted on Jun 17, 2017 at 21:32 UTC

I can't believe the rate-of-climb on take-off! They climb like fighter jets. I wonder what kind of chase plane they were using and how they were set up?

Link | Posted on Jun 17, 2017 at 21:10 UTC as 33rd comment | 4 replies
In reply to:

beavertown: Nikon would have been today's Sony if they had started to produce their own sensors 20 years ago.

I don't think Nikon had or has the kind of capital required to do R&D or manufacturing on this scale. They could not have kept up with Sony.

Link | Posted on May 17, 2017 at 09:13 UTC
In reply to:

Luke Kaven: This camera, and the Nikon D3X, had the most beautiful colors of any DSLR I've seen before or since. There was something magical about that version of the Exmor sensor that none have matched since.

These were special cameras as well.

Link | Posted on Apr 21, 2017 at 01:42 UTC
In reply to:

Mescalamba: One of best color accuracy/color separation CFAs in digital camera. Only comparable would be something like SLR/n or 645 back from Kodak.

Sadly they cooked a bit too much in camera. Also its compressed bits are meh.

Sensor was shared with D3x btw.

Prettiest colors I ever saw in a DSLR, along with the D3x.

Link | Posted on Apr 20, 2017 at 15:10 UTC

This camera, and the Nikon D3X, had the most beautiful colors of any DSLR I've seen before or since. There was something magical about that version of the Exmor sensor that none have matched since.

Link | Posted on Apr 20, 2017 at 15:09 UTC as 58th comment | 3 replies
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