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: 649, showing: 1 – 20
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In reply to:

jhinkey: Now all this needs is a 4x5 digital back with a full 4x5 sensor, something like this:
http://largesense.com/products/4x5-large-format-digital-back-ls45/

Only 12MP, but likely a fantastic 12MP.

$50K. Ouch.

Link | Posted on Feb 22, 2018 at 18:35 UTC
In reply to:

jhinkey: So, I should take off the bottom plate and put a very very very thin bead of silicone sealant around the edges if I want to be able to set my A7RIII down on a puddle or hold it upside down while shooting in the rain.

I can see aftermarket sealing upgrades on the horizon!

It's a water seal, not a heat barrier.
No heat will get through a very small un-sealed gap around the bottom plate, but water sure will.

Custom bottom plate and custom battery door for improved water resistance.
Who has the 3D printer? I have the CAD system . . .

Link | Posted on Feb 22, 2018 at 02:37 UTC

Well, it doesn't weigh much different than the ~1.5 kg of a Wista Field-45DX Field Camera:

"while the lightweight nature of the material means the Chroma will weigh much less than a traditional wooden model. Even with the ground glass screen, the camera weighs just 1592g."

Hmm . . . plastic typically has a higher density than wood . . .

Granted the Wista is wildly more expensive.

Link | Posted on Feb 22, 2018 at 02:32 UTC as 11th comment | 3 replies

Now all this needs is a 4x5 digital back with a full 4x5 sensor, something like this:
http://largesense.com/products/4x5-large-format-digital-back-ls45/

Only 12MP, but likely a fantastic 12MP.

Link | Posted on Feb 22, 2018 at 02:21 UTC as 12th comment | 5 replies

So, I should take off the bottom plate and put a very very very thin bead of silicone sealant around the edges if I want to be able to set my A7RIII down on a puddle or hold it upside down while shooting in the rain.

I can see aftermarket sealing upgrades on the horizon!

Link | Posted on Feb 21, 2018 at 16:21 UTC as 9th comment | 4 replies
In reply to:

Shlomo Goldwasser: Weight: 1200g

In other words; so heavy it bends light towards it.

Yep, first lens to employ gravitational optics to bend light such that no CA is introduced. This is the opposite of PF optics which makes lenses smaller and lower weight.

Link | Posted on Feb 20, 2018 at 15:58 UTC

I bet they designed it to resolve 50MP at f/1.2 . . . not.
If you want f/1.2 at 50mm then you have to pay the weight and size price.
We'll see how good it is wide open and stopped down.

Link | Posted on Feb 20, 2018 at 15:55 UTC as 26th comment
In reply to:

jhinkey: Why were they shooting from a place that a skier could slide into?
There was another incident earlier where a skier slid into some equipment (hole boring tool left in the ground) that almost caused additional injuries.

Seems to me the race officials need to review their safety procedures and enforcement as someone could really really get hurt (skiers and/or photogs)

My point is that the downhill track is supposed to not have hard things for skiers to slide into - that includes photographers. You can't avoid ALL mistakes, but it seems the race officials can do a better job than they have, both on the ski runs and in other events due to winds as you mentioned. Just because the officials let the wind hazard go doesn't mean the problems with the downhill runs are acceptable.

Link | Posted on Feb 19, 2018 at 20:58 UTC

Why were they shooting from a place that a skier could slide into?
There was another incident earlier where a skier slid into some equipment (hole boring tool left in the ground) that almost caused additional injuries.

Seems to me the race officials need to review their safety procedures and enforcement as someone could really really get hurt (skiers and/or photogs)

Link | Posted on Feb 19, 2018 at 20:23 UTC as 33rd comment | 5 replies

Any idea what the true flash duration of a pulse and shape of the light curve is?

Link | Posted on Feb 18, 2018 at 19:25 UTC as 17th comment | 1 reply

As long as it has 14stops of DR at base ISO and 40+MP then it will be great. Seems we'll be waiting a few years for that.

Link | Posted on Feb 17, 2018 at 21:09 UTC as 19th comment | 4 replies
On article Panasonic Lumix DC-GX9: What you need to know (211 comments in total)
In reply to:

mosc: This should be called the G95 and they should make a GX9 that is much closer to the GX8. Then combined with the G9 we could have the actual 9s we want in a cohesive line.

Or maybe since they're already at 9 they decided this would be the last before yet another re-name/numbering scheme so they thought they'd eek out a few more sales associating it with the GX line.

The GX7, GX8, GX9 body style has nothing to do with the G85 body so proposing the GX9 to be called the G95 does not make any sense.

Link | Posted on Feb 17, 2018 at 16:50 UTC
On article Panasonic Lumix DC-GX9: What you need to know (211 comments in total)

What the successor to the excellent GX7 should have been I suppose.
Had a GX7, really tried to like the GX8 (great EVF!!), but it was too big and lacked many features to make the upgrade worthwhile. In the mean time the excellent G85 came out, GX7 was sold, and I see no reason to get a GH5 or a GX9 for my shooting.

Link | Posted on Feb 17, 2018 at 16:05 UTC as 11th comment
In reply to:

matthew saville: Nikon made a 24mm f/2 AI in 1977. Don't care about how small / robust this Loxia (manual focus) lens is, unless the corners are GREAT.

(I assume they are, since Loxia has had a decent track record so far. But honestly, most people don't even NEED ultra-sharp corners wide open, unless they're shooting astro-landscape photography, or test charts.)

And the 24/2 AI is not a very good lens at all.
Hopefully this lens is a from scratch design and doesn't share any of the 35/2 wide open characteristics (field curvature, sharpness, SA, etc.). I hope it does give great color, contrast, sun stars, and fantastic across the frame stopped down and very good wide open.

25mm is not for me, but I know it's a pretty popular FL for many people.

Link | Posted on Feb 15, 2018 at 02:19 UTC

Compared to my Droid Maxx, the Pixel 2 has been a fantastic smartphone and the image quality is many leaps above the old Maxx and is excellent.

Still, in the end smartphone cameras will be limited by fundamental physics of optics and sensor sizes and won't replace m43 or APS-C or FX sensored cameras, but the point and shoot that still remain will have the final nail in their coffin.

Link | Posted on Feb 12, 2018 at 15:24 UTC as 71st comment

Years in jail for the responsible party(s).

Link | Posted on Feb 7, 2018 at 22:35 UTC as 62nd comment | 18 replies

Whatever tool suits the photographer best. There really is not much to talk about.
The smartphone camera of today is the point and shoot of 15 to 20 years ago.
Whatever works, use it.

Personally when I went to Nepal 16 years ago I took a full-frame film camera, 20mm, 50mm, and a 80-200/2.8 and that worked for me. If I went back today I'd take only primes, but would do something similar - wide to tele. My wife would be the one with her camera and that's just fine as she gets really good candid shots as well.

Link | Posted on Feb 5, 2018 at 16:00 UTC as 111th comment
In reply to:

rfsIII: Don't any of you dare try to blame the photog, and further it's immaterial whether or not he went to the pre-race meeting—racetracks are just dangerous places no matter where you are. Spectators at Daytona in 2015 were injured in the aftermath of a crash even though they were behind a catch fence.
Even in the stands, there is a chance you'll be hurt or killed by either a car or by debris flying off of a car. Straights, corners, pits, infield, it doesn't matter, there have been spectator and photographer deaths on all parts of the track. And usually, whatever is going to hit you is coming too fast for you to even see it.
The only thing you can do is keep your wits about you and pray that it's not your day to die.
I just hope that the organizers had the appropriate insurance.

Well, based on the story and the video there is no one else at fault for this specific accident than the photographer. He was in a place he was told not to be and was not paying attention in a situation that commonly occurs in these types of races.
It's pretty simple.
Hope he makes a speedy recovery and learns from the incident.

You can go only so far to protect people from themselves and their decisions.

Link | Posted on Feb 2, 2018 at 19:16 UTC
In reply to:

jhinkey: I'll get one to take on my next vacation . . . .

I'm sure there's a self deprecating joke I can make up here somewhere. /;>)

Link | Posted on Feb 1, 2018 at 23:31 UTC

I'll get one to take on my next vacation . . . .

Link | Posted on Feb 1, 2018 at 23:04 UTC as 40th comment | 3 replies
Total: 649, showing: 1 – 20
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