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: 221, showing: 101 – 120
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In reply to:

technotic: Any good for D800 in terms of IQ I wonder.

Well, the MTF charts don't look spectacular - not any better than 24-85AFS VR or the 24-120/4 AFS VR, two lenses that are mediocre at 36MP. I had hoped for better from Sigma for such a large/heavy lens. Perhaps it becomes spectacular when stopped down to f/5.6 . . . .

http://www.sigmaphoto.com/product/24-105mm-f4-dg-os-hsm-art

I'm still wanting a replacement for the 28-105/3.5-4.5AF-D that would have much improved IQ, but the same usefulness (i.e., the pseudo-macro capability and semi-wide to short-tele focal lengths).
I had great hopes for the 24-85AFS VR, but that lens left me very disappointed since it was really no better than it's 24-85AFS non-VR predecessor.

Direct link | Posted on Oct 16, 2013 at 17:56 UTC
On Nikon D610 preview (627 comments in total)
In reply to:

Marty4650: I'm willing to bet that even though there might eventually be some quality issue with this camera, it will NOT BE "oil spots on the sensor."

I don't think Nikon wants to relive that nightmare.

You can assume they thoroughly tested and checked the new shutter mechanism from their vendor.

This is probably the one issue the D610 will never have.

First space shuttle crash due to cold temps and faulty O-ring/seal design of solid rocket booster. Second space shuttle crash due to defective application of main tank foam insulation resulting in a large piece of foam breaking off and impacting a wing leading edge. Both can be traced back to human failure.

Direct link | Posted on Oct 8, 2013 at 15:21 UTC
On Zeiss announces 'no compromise' Otus 55mm F1.4 article (488 comments in total)
In reply to:

D200_4me: Autofocus would be nice....it's 2013 :-)

Ah, I see now that it IS an internal focus design, however I think they are implying that all the elements after the 4th one move together, which is still a large mass of glass to move quickly.

The focusing scale looks to be more symbolic than accurate to me . . .

Direct link | Posted on Oct 7, 2013 at 14:40 UTC
On Zeiss announces 'no compromise' Otus 55mm F1.4 article (488 comments in total)
In reply to:

D200_4me: Autofocus would be nice....it's 2013 :-)

What limits the ability to AF accurately with fast lenses wide open are the optical aberrations - i.e., they are not sharp enough wide open - even more so off center.
If this design really is super sharp wide open across the image it will be much easier for focus confirmation dots, split screens, live view, etc. to achieve accurate focus.
And if they had made it AF capable it would have to move as an entire group which is really slow. Otherwise they would have had to go with an internal focusing design which would have compromised the optics.

Direct link | Posted on Oct 7, 2013 at 14:34 UTC
On Nikon Coolpix P7800 real-world samples article (80 comments in total)

I wish Nikon or one of the m43 companies would come out with a fixed zoom lens body using the Nikon 1" or DX sensor or m43 sensor with a 24-80 or so equivalent lens. Faster would be better, but at some point it can't be made compact or the lens IQ suffers.

If Nikon made a P7800 with a 1" sensor and a fixed 24-75 (or so) equivalent zoom lens that had very very good sharpness I'd be a buyer for sure as I like the features, layout and ergonomics of the P7800 very much.

Direct link | Posted on Oct 3, 2013 at 19:33 UTC as 11th comment | 1 reply
On Nikon Coolpix P7800 real-world samples article (80 comments in total)
In reply to:

Gesture: Utterly amazing. You can get many a 4/3rds camera from Olympus or Panasonic, even a DSLR, for less than the Nikon 7800 or Canon G16. Instead, why doesn't Canon advance the G1X and let Nikon come up with something similar.

You can get a DX DSLR BODY for the price of a P7800, but when you throw a lens or two in to get the equivalent focal length coverage you are at $1K or so. The DSLR system is also much bulkier in total. You'd have to buy a much older model DSLR and used glass to approach the P7800 new price.
Wait a year and the P7800 will be a bit cheaper I'm sure.

Direct link | Posted on Oct 3, 2013 at 19:30 UTC
On Nikon Coolpix P7800 real-world samples article (80 comments in total)

If only Nikon had made it a 24-XX FX equivalent I'd be sold . . . perhaps the next iteration they will. In the mean time I'll keep using my LX7, which is fine, but it does not have an EVF nor an articulated screen.

I do have m43 gear (GH-2 and G5) which becomes more bulky and expensive once you add equivalent lenses to them.

Perhaps I'll pick one up in a year or so when the price comes down.
Still waiting for a replacement of my dear old CP8400 - the P7800 came close except for being 28mm on the wide end . . .

Direct link | Posted on Oct 3, 2013 at 19:22 UTC as 12th comment | 2 replies
On Roger Cicala investigates accuracy of lens adapters article (48 comments in total)

Knowledge is power for those able to handle it. Yes, most people would not even know these issues were going on, but it is something to be aware of so that if you do have some off-axis sharpness issues you can perhaps know where to start looking.

I only had wished that he had taken more detailed data - like which direction the IQ problems are in the frame, decentering versus focal plan mis-alignment, etc.

Good stuff to know.

Direct link | Posted on Sep 30, 2013 at 16:57 UTC as 20th comment
On Nikon 1 AW1 preview (587 comments in total)
In reply to:

jhinkey: At first glance this seems silly, but upon thinking what I use an AW camera for it makes some sense. My current AW camera is a Panasonic TS3 which has already failed me on vacation one time (after using it twice) and was replaced under warranty (second vacation it worked fine). In general it makes just OK pictures and the battery life sucks, especially if using video at all. Nikon equivalent is no better.

So having a large-ish sensored Nikon system that I can take kayaking, snorkeling, canoeing, swimming, etc. and not have to worry about it seems great. Just not sure of the cost - especially since the lenses are not stabilized which seems like a real requirement when bobbing up and down in the surf or in a kayak or . . . .

As an accomplished D800 user I know all about RAW.
As far as increasing shutter speed, that's hard to do without running the ISO way up on such a small sensor so that the results become, well, less than tolerable.

And yes I was part of that world before auto sensor/lens stabilization and one of the cures was fast glass, which none of these AW compacts have (even f/2.8 is not so fast), along with a flash, otherwise the picture was just not attempted.

Direct link | Posted on Sep 19, 2013 at 23:26 UTC
On Nikon 1 AW1 preview (587 comments in total)

At first glance this seems silly, but upon thinking what I use an AW camera for it makes some sense. My current AW camera is a Panasonic TS3 which has already failed me on vacation one time (after using it twice) and was replaced under warranty (second vacation it worked fine). In general it makes just OK pictures and the battery life sucks, especially if using video at all. Nikon equivalent is no better.

So having a large-ish sensored Nikon system that I can take kayaking, snorkeling, canoeing, swimming, etc. and not have to worry about it seems great. Just not sure of the cost - especially since the lenses are not stabilized which seems like a real requirement when bobbing up and down in the surf or in a kayak or . . . .

Direct link | Posted on Sep 19, 2013 at 21:43 UTC as 69th comment | 10 replies
In reply to:

ptox: So they're showing off their new, super sensitive CCD featuring extra low noise readout... via a low quality promo video filled with ugly compression artifacts. Great job, Canon PR people!

+1 Vladimir! Too many people spouting first before thinking.

Direct link | Posted on Sep 14, 2013 at 03:26 UTC
In reply to:

Joe Ogiba: I guess it's a 2MP full frame sensor.

Wrong Post!

Direct link | Posted on Sep 14, 2013 at 03:25 UTC
In reply to:

falconeyes: 0.01 lux is -8 EV.

I heavily doubt it was this dark, as it would correspond be about a moonless starry night. But the fireflies then would illuminate the scenery (or their direct surrounding at least) as main light source and I didn't notice the effect in the video.

Anyway, while dark, -8 EV corresponds to (F/1.4, 1/24s) ISO 1,200,000. I saw extreme noise at 640px web resolution. Scaling web resolution to full 24 MP resolution, the would be the screen pixel noise (24MP) at ISO 14,000. I'd say a normal full frame 24MP dSLR doesn't have this much pixel noise at ISO 14,000.

Therefore, I conclude that the demo shown by Canon is technically lame, more of a marketing gig than anything else.

Well, let's see:
- Yes, from the beginning frames of the video where they show the moonless starry night sky, then by your math it IS 0.01 lux.
- The fireflies are not illuminating the scene as they are not on continuously as is obvious from the video. They are small intermittent point sources of light and don't contribute the the overall illumination.

So I highly suspect that Canon was not telling a lie when it described the situation and they are not technically LAME.

Could they do better by combining pixels of a higher resolution sensor - perhaps, but it would take a lot more computing power and maybe that's the point.

Direct link | Posted on Sep 14, 2013 at 03:23 UTC
On Olympus OM-D E-M1 Review preview (2062 comments in total)
In reply to:

DELETED88781: Small sensor is not good regardless of any feature.
Entry level FF DSLR has 4 times bigger sensor and only 200g more weight.
Cost? Almost the same.

It's still a matter of weight/size vs. IQ. My m43 gear is clearly lower in DR/color fidelity than my D800, but it's also way lighter, especially when the equivalent FOV lenses are taken into account.
Unless under extreme DR situations or when I need to really lift shadows, or I need really low DOF, my m43 gear is way good enough for most things.

Direct link | Posted on Sep 10, 2013 at 06:02 UTC

ugh! Do they really make any money doing this?

Direct link | Posted on Sep 9, 2013 at 16:58 UTC as 56th comment | 2 replies
In reply to:

bcalkins: Finally - EVFs come to P&S cameras ! Be nice to see a capable EVF in some of the larger sensor compacts...

EVFs have been in the P&S coolpix line in the past, but were dropped. My old CP8400 had an EVF, fully articulated LCD, built-in flash, hot shoe, magnesium body, etc. and then the CoolPix line became dumbed down over time. Nice to see these things back in the CP line.

However, I'd give up the 28-200 equivalent lens for a 24-100/2.8-4 lens and a the 1" sensor from the Nikon 1 system . . . that would be a killer CoolPix.

Direct link | Posted on Sep 5, 2013 at 20:40 UTC
In reply to:

SeeRoy: Why doesn't one of the manufacturers release something with overall improvements in IQ (bigger sensor, faster lens etc) keeping the size down by eliminating the LCD screen?

Apart from setup (and the chumps who chimp all the time) I think many people would trade it for overall performance gains if the essential functions were externally accessible and setup could be done via an EVF. After all, there are plenty of overpriced cameras out there lacking a viewfinder - which many of us find indispensable.

Still, adding an EVF to cameras in this sector: about bl00dy time too.

Tough to show my kids or wife the image I just took of them w/o the rear LCD

Direct link | Posted on Sep 5, 2013 at 14:38 UTC
In reply to:

Jon Ragnarsson: Am I the only one that thinks that this is what the 1 cameras should look like?

No + 1

Direct link | Posted on Sep 5, 2013 at 14:28 UTC

Looks like it's a very much evolved descendant of my still-working CP8400:
- Fast zoom lens
- EVF
- Articulated screen
- Hot shoe
- Built-in flash

If only it started at 24mm FX equivalent . . .

Direct link | Posted on Sep 5, 2013 at 06:31 UTC as 83rd comment | 1 reply

Hmm . . . don't know about the price, but many times I'm out with just my cell running, hiking, etc. and I don't want to bring along a camera. This MIGHT be an attractive thing to have.

But really, I look forward to the creative things that people will do with such a system. Can you connect more than one camera module to your mobile device so that you can take multiple simultaneous images from different locations?

Direct link | Posted on Sep 4, 2013 at 17:29 UTC as 63rd comment
Total: 221, showing: 101 – 120
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