PIX 2015
jhinkey

jhinkey

Lives in United States Seattle, WA, United States
Works as a Aerospace Engineering Consultant
Has a website at www.hinkey.zenfolio.com
Joined on Dec 27, 2005

Comments

Total: 348, showing: 1 – 20
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Actually, this topic IS news if one were to read into the details.
Though NASA has used this kind of technique to image the compressible flow around supersonic aircraft in free flight, that was done by pointing the camera up at the sky and having the plane fly somewhat close to the edge of the image of the sun - which produces nearly parallel rays. This required the sun to be nearly in the frame, the camera to point at a certain location in the sky, and the jet to fly through that location at a certain time. All tricky to do.

This new method, hence "news" (but not for the reasons that the article title is written for, is that the camera is above, pointed downward at the surface of the earth, and a snapshot before and during the plane is in the frame are compared - the resulting distortion calculation gives the image of the density gradient field.

Sometimes DPR articles are too short - just like with most of our news these days..

Direct link | Posted on Aug 28, 2015 at 21:17 UTC as 4th comment | 1 reply
In reply to:

HFLM: Really old nows. Even our students were able to use this during their practical courses and it is taught in fluid mechanics course.

Yes, many years ago NASA started doing this. Not sure why it's now newsworthy.

Direct link | Posted on Aug 28, 2015 at 01:35 UTC
On Readers' Showcase: Zhi Yuen Yap article (60 comments in total)
In reply to:

jhinkey: Nice images.

As a sometimes avid climber/hiker here in the PNW I too find myself minimizing my gear, but yet still am able to get great images.
So much of achieving great images the these is being there at the right time and knowing how to make the most of what gear you have.
Bravo for just getting to these locations and then major cudos for making the images look great.

Direct link | Posted on Aug 23, 2015 at 19:39 UTC
On Readers' Showcase: Zhi Yuen Yap article (60 comments in total)

Nice images.

Direct link | Posted on Aug 23, 2015 at 17:35 UTC as 23rd comment | 1 reply

Is there a remote way to start/stop the video w/o having to touch the camera? This would be very cool to grab 1,000 frames in 1 second without jittering the camera to start and stop the video.

Direct link | Posted on Aug 13, 2015 at 00:08 UTC as 5th comment | 1 reply
On Panasonic Lumix DMC-GX8 makes leap to 20MP article (168 comments in total)
In reply to:

Mike FL: IBIS. How many stops?

GX7's IBIS was bad as it is not even half good comparing Olympus.

I found my GX7 IBIS to give me at least 2 stops of extra shutter speed, so yes not as good as Oly, but still very useful, especially with longer focal length glass.

Direct link | Posted on Jul 16, 2015 at 15:54 UTC
On Panasonic Lumix DMC-GX8 makes leap to 20MP article (168 comments in total)
In reply to:

jhinkey: So questions:
- Is this a multi-aspect sensor - seems like it is based on the image sizes - they don't appear to be cropped
- Does IBIS work with legacy glass
- Does DFD do anything to help focus with my 43 150/2 Oly?

Seems like a nice upgrade from the GX7 except for the size increase . .

But, does IBIS give you a stabilized EVF/LCD image with non-OIS or legacy glass? This is a major IBIS shortcoming with the GX7 - something the EM1 does really well.

Direct link | Posted on Jul 16, 2015 at 15:53 UTC
On Panasonic Lumix DMC-GX8 makes leap to 20MP article (168 comments in total)

So questions:
- Is this a multi-aspect sensor - seems like it is based on the image sizes - they don't appear to be cropped
- Does IBIS work with legacy glass
- Does DFD do anything to help focus with my 43 150/2 Oly?

Seems like a nice upgrade from the GX7 except for the size increase . .

Direct link | Posted on Jul 16, 2015 at 05:12 UTC as 38th comment | 4 replies
On Nikon offers AF-S DX Nikkor 16-80mm F2.8-4E ED VR article (331 comments in total)

Ah, the lens I really wanted when I owned a D300 . . . the 16-85AFS at the time was pretty good though.
This might be enough for me to go all primes with my D800 and use an APS-C body with this lens as a general walk-around kit.

Direct link | Posted on Jul 2, 2015 at 18:02 UTC as 37th comment
On Otus Readings: the Zeiss 85 F1.4 Otus Comparison article (223 comments in total)

Seems some field curvature is at play. Would love to see how the PF of the Nikkor and Canon change with different focus settings.

Direct link | Posted on Jun 29, 2015 at 15:43 UTC as 55th comment
On Otus Readings: the Zeiss 85 F1.4 Otus Comparison article (223 comments in total)
In reply to:

Xentinus: Nikon 85mm 1.8 G is a real gem!

Not if you dislike PF wide open - it's sharpness is really good, but man that CA!
That being said, I wonder how the PF is when focused just slightly differently on the Nikkor.

Direct link | Posted on Jun 29, 2015 at 15:38 UTC
In reply to:

jhinkey: Sorry, no sympathy to the photographer. Don't like it, don't sign the contract.
Don't like these kind of contracts, form a union and boycott Ms. Swift, but don't whine.
What happened between Apple/Swift has no relation to the disagreement that this photographer has with Swift. He's just using the Apple/Swift coverage to promote his unhappiness with the contract he signed.

ThatCamFan - Walk me through step by step how the situation with Apple and Swift is related to the situation with Swift and the photographer?

Direct link | Posted on Jun 27, 2015 at 16:05 UTC

Give me a compact digital MF rig I can take into the mountains or on a hike for a reasonable price. Find a way to get MF into the masses (or at least those of use that can even remotely afford it).

Direct link | Posted on Jun 26, 2015 at 00:03 UTC as 54th comment
In reply to:

jhinkey: Step 1: Admit you have a problem
Step 2: Close the Italian design office
Step 3: Fire whomever hatched such a plan and whomever supported it
Step 4: Figure out what kind of Med. Format products you can sell to the masses through innovation & strategic partnerships
Step 5: Have lots of patience, 'cause it's gonna take a long time to right the Hassy ship back onto course

I would love to own a lightweight medium format system, but it's always been out of reach $$-wise.

Well, if they are to survive they might need to figure out how to offer such a system to more people. But you're likely right!

Direct link | Posted on Jun 25, 2015 at 17:02 UTC

Step 1: Admit you have a problem
Step 2: Close the Italian design office
Step 3: Fire whomever hatched such a plan and whomever supported it
Step 4: Figure out what kind of Med. Format products you can sell to the masses through innovation & strategic partnerships
Step 5: Have lots of patience, 'cause it's gonna take a long time to right the Hassy ship back onto course

I would love to own a lightweight medium format system, but it's always been out of reach $$-wise.

Direct link | Posted on Jun 25, 2015 at 14:25 UTC as 104th comment | 3 replies

Sorry, no sympathy to the photographer. Don't like it, don't sign the contract.
Don't like these kind of contracts, form a union and boycott Ms. Swift, but don't whine.
What happened between Apple/Swift has no relation to the disagreement that this photographer has with Swift. He's just using the Apple/Swift coverage to promote his unhappiness with the contract he signed.

Direct link | Posted on Jun 24, 2015 at 23:40 UTC as 56th comment | 5 replies
In reply to:

lacroix75: Never been happier since moving from Nikon a year .
Sony, please continue to innovate, don't stop.

Along with my on order A7R II and Batis lenses, I still need a native 14mm f/2 prime; hope Mr. Maki or Zeiss are listening!!!

Yes, some native WA primies:
~15mm/2.8 prime
Native fisheye (no converters please)

Direct link | Posted on Jun 23, 2015 at 17:19 UTC

My customer voice says, slow down the technology addition a bit and work on rounding off all the sharp technology edges that you now have in the A7 series:
- Software UI and external body ergonomics
- Battery life (better battery & power saving features, etc.)
- RAW file issues
- Weather resistance
- Lenses - native ones that is
- Connectivity - wired or wireless
- Larger size body (A9?) that's better for ergonomics, battery life, performance, weather sealing, etc. to compete with CaNikon

Great start, particularly with the A7RII (that I hope to have soon), now let's refine some things.

Direct link | Posted on Jun 23, 2015 at 16:55 UTC as 28th comment
On Opinion: Did Sony just do the impossible? article (1085 comments in total)
In reply to:

RichRMA: More than a few people mentioned that the A7R's lack of in-body I.S. was detrimental to its huge resolution potential. The idea of any camera having more than 5mp and no stabilization is horrible, unless you always use a tripod or shoot in bright light. When I got my old Olympus E-510 many years ago, the first thing I noticed was the vast increase in the number of "keeper" shots in iffy lighting, thanks to in-body stabilization.

The only real shutter shock issue I had with the A7R was with the Sony 70-200/4 OS. All my manual focus glass acted just like with my D800 when I used proper hand-holding technique.
The real value of IBIS to me is stabilization with non-OIS manual focus glass AND, perhaps even more importantly, the ability to have a stabilized image at 100% view when trying to achieve critical focus hand-held (even on a tripod when fiddling with the focus ring).
Stabilized video with legacy glass, though way down on the list for me, is also a plus.

Direct link | Posted on Jun 23, 2015 at 02:05 UTC
On Opinion: Did Sony just do the impossible? article (1085 comments in total)
In reply to:

yslee1: "As someone who loves placing subjects well off-center, and refuses to use the simple 'focus & recompose' technique due to focal plane shifts and subject movement that easily throw off focus when shooting at fast apertures, this is huge."

And then you run into Sony's UI for moving AF points. Hint: It's horrible.

Good talk BTW on Saturday - unfortunately I missed the first half hour or I would have peppered you guys with several questions.

Direct link | Posted on Jun 22, 2015 at 21:25 UTC
Total: 348, showing: 1 – 20
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