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: 447, showing: 101 – 120
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On article Sony brings uncompressed Raw to a7S II, a7R II and... (562 comments in total)

Good start, now can they allow 14 bit ARW files in silent shutter mode . . . . or when using LENR, etc. That would be fantastic.

Link | Posted on Sep 16, 2015 at 01:00 UTC as 51st comment

A solution in search of a practical problem.

Link | Posted on Sep 10, 2015 at 20:19 UTC as 192nd comment

I've long ago switched to Canon inkjet printers precisely due to clogging issues that were the bane of my existence using Epson printers. Maybe they've improved significantly, but I now have 3 Canon printers - one of which gets used once per year and is flawless when I fire it up.

Don't mind the high cost of ink as I just don't print that much or more than 13" wide. High ink usage folks may feel differently.

Link | Posted on Sep 5, 2015 at 17:14 UTC as 13th comment
On article Panasonic confirms Lumix G 25mm F1.7 (206 comments in total)

Great and all, but please give us a 20/1.2 or 25/1.2 - i.e., something truly special, not yet another near-normal focal length lens that's not all that fast by today's standards. The 42.5/1.2 PL is a bit lonely as the only f/1.2 lens in the Panny lens lineup.

Link | Posted on Sep 3, 2015 at 04:43 UTC as 33rd comment
In reply to:

alpha dog: It would be really interesting to see a comparison of the same shot on comparable non Sony kit (using similar generation/same resolution sensors). eg Compare Nikon D750 (uncompressed and compressed) v A7ii ('14 bit' compressed and '12 bit' compressed) to see how big a difference is visible - both in the high contrast edges and in pushed shadows.

Since I have the A7RII and a D800 I plan on shooting the same scene, with the same lens at the same exposure settings (aperture, shutter speed, and set ISO) in both 14 bit and 12 bit modes for each and see what the practical differences are, if any. This I need to do for myself - seems like DPR could have already done this.

Link | Posted on Sep 2, 2015 at 17:13 UTC
In reply to:

jhinkey: Please shoot the same challenging scene in 12 bit and 14 bit modes and clearly show us the technical (100% pixel viewing super stretched shadows) AND the practical differences (typical viewing sizes and printed output).
Then the readers can decide if this matters to them.

Though I like these articles I find them not as focused/coherent as they could/should be - dpr can do better.

"That would demonstrate the effect of 14 vs. 12 bit but the effect of the "stripe compression" is pretty well demonstrated in the article."
Not for a "practical" use scenario - i.e., small displayed image size and/or printing, etc.

Link | Posted on Sep 2, 2015 at 17:10 UTC

Please shoot the same challenging scene in 12 bit and 14 bit modes and clearly show us the technical (100% pixel viewing super stretched shadows) AND the practical differences (typical viewing sizes and printed output).
Then the readers can decide if this matters to them.

Though I like these articles I find them not as focused/coherent as they could/should be - dpr can do better.

Link | Posted on Sep 2, 2015 at 16:27 UTC as 286th comment | 6 replies

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..

Link | Posted on Aug 28, 2015 at 21:17 UTC as 8th comment | 2 replies
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.

Link | Posted on Aug 28, 2015 at 01:35 UTC
On article Readers' Showcase: Zhi Yuen Yap (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.

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

Nice images.

Link | Posted on Aug 23, 2015 at 17:35 UTC as 24th 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.

Link | Posted on Aug 13, 2015 at 00:08 UTC as 6th comment | 1 reply
On article Panasonic Lumix DMC-GX8 makes leap to 20MP (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.

Link | Posted on Jul 16, 2015 at 15:54 UTC
On article Panasonic Lumix DMC-GX8 makes leap to 20MP (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.

Link | Posted on Jul 16, 2015 at 15:53 UTC
On article Panasonic Lumix DMC-GX8 makes leap to 20MP (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 . .

Link | Posted on Jul 16, 2015 at 05:12 UTC as 39th comment | 4 replies
On article Nikon offers AF-S DX Nikkor 16-80mm F2.8-4E ED VR (334 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.

Link | Posted on Jul 2, 2015 at 18:02 UTC as 38th comment
On article Otus Readings: the Zeiss 85 F1.4 Otus Comparison (224 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.

Link | Posted on Jun 29, 2015 at 15:43 UTC as 56th comment
On article Otus Readings: the Zeiss 85 F1.4 Otus Comparison (224 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.

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?

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).

Link | Posted on Jun 26, 2015 at 00:03 UTC as 55th comment
Total: 447, showing: 101 – 120
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