Dennis

Dennis

Lives in United States CT, United States
Works as a Software
Joined on Oct 25, 2002

Comments

Total: 180, showing: 1 – 20
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This just in ... Olympus to follow in the footsteps of Geico (remember the Cavemen commercials ?) They're going to premiere a new sitcom starring a bunch of guys with DSL-Arm ... How can it lose ?

I thought the commercial was pretty amusing. Some of the reactions here are even more amusing !

Direct link | Posted on May 22, 2015 at 00:52 UTC as 11th comment
In reply to:

Alice0102: Is there an "executive summary" for those of us that are technically challenged? My brief read leads me to believe this is something I could spend a whole lot of time concerned about when in reality I would never know if my concern and new knowledge accomplished anything at all. Why bother? Just do your best and enjoy your pictures.
Alice

There is. Skim the article, looking at the gold colored section headers and read the one that says:
"How does this affect my photography? Exposing to the right"

Or ... put as much light on the sensor as possible (without clipping highlights).

Direct link | Posted on Apr 30, 2015 at 04:08 UTC
In reply to:

Dennis: Richard, great article. If you find time, at some point, to elaborate on a couple points, the illustration showing the test tubes makes it clear that SNR increases with exposure time, but doesn't address the confusion some people have with photosite size; if you have a 16MP and 24MP sensor, both are the same size, but each photosite on the 24MP sensor sees fewer photons and should therefore have more visible noise. There's no explanation of the difference between the 100% view and the downsampled or printed view. Therefore, when you say:

> And, since we've established that capturing more light improves your signal-to-noise ratio

I'm not sure you got there; you've explained how an increase in exposure increases the SNR, but without talking about averaging, you could argue that 36million (FF) photosites versus 16million (APS-C) should have the same noise (same test tube size, after all).

- Dennis

I agree with keeping it easy for everyone to understand; I've just seen enough debates in the forums over this ... people who insist that FF is "cleaner" than APS-C because the pixels are bigger ...

Just a thought, and thanks for considering it.

Direct link | Posted on Apr 27, 2015 at 18:28 UTC

Richard, great article. If you find time, at some point, to elaborate on a couple points, the illustration showing the test tubes makes it clear that SNR increases with exposure time, but doesn't address the confusion some people have with photosite size; if you have a 16MP and 24MP sensor, both are the same size, but each photosite on the 24MP sensor sees fewer photons and should therefore have more visible noise. There's no explanation of the difference between the 100% view and the downsampled or printed view. Therefore, when you say:

> And, since we've established that capturing more light improves your signal-to-noise ratio

I'm not sure you got there; you've explained how an increase in exposure increases the SNR, but without talking about averaging, you could argue that 36million (FF) photosites versus 16million (APS-C) should have the same noise (same test tube size, after all).

- Dennis

Direct link | Posted on Apr 27, 2015 at 16:34 UTC as 177th comment | 3 replies

It's a good thing there were a number of engineers there to watch over each other and make sure none of them said anything useful.

Can't knock dpreview for not trying, though; I liked the questions.

Direct link | Posted on Apr 11, 2015 at 03:14 UTC as 104th comment | 1 reply
On 11_Dan01021_f9 photo in dpreview review samples's photo gallery (1 comment in total)

Thank you for these samples ! I've been waiting for more reviews of this lens before deciding whether to get it or another as a standard prime for the A6000. I read about high distortion from a couple early adopters and now that I can see it, I think I'll take a pass on this one. Even if it's eventually autocorrected in Lightroom, it bothers me to have a lens with significant issues like this that relies on image processing to fix them. I think I'll probably opt for the Sigma 30/2.8, even though it's a full stop slower. (Sony 35 is too long; the Touit 32 is an option, but still a bit narrower than I'd like).

Direct link | Posted on Apr 5, 2015 at 14:52 UTC as 1st comment
On Aloha! We go shooting with Samsung's new NX500 article (186 comments in total)

When I read this, I thought "I didn't realize Samsung announced a rangefinder style version of the NX1" ... so I looked and saw that it's more "point & shoot" style than RF-style.

Direct link | Posted on Mar 16, 2015 at 19:59 UTC as 32nd comment | 1 reply
In reply to:

ZeneticX: Canon is like Apple now

they don't give two sh!t about the competition because they know no matter what products they roll out, there's a solid base of loyal customers that will buy them in an instant

I don't know about that ... I have a little bit of Apple stock and would buy more of that before Canon stock.

Direct link | Posted on Mar 10, 2015 at 19:05 UTC
In reply to:

Dennis: The real innovation here is that it's destined to be the first full frame digital camera to be offered in 17 different colors.

I'm not knocking people who like colorful cameras; just taking a swipe at Pentax, because half of their press releases are to announce new color choices for cameras. And I'm not on car forums, but I imagine I'd behave the same there, too ;)

Direct link | Posted on Feb 9, 2015 at 14:48 UTC

The real innovation here is that it's destined to be the first full frame digital camera to be offered in 17 different colors.

Direct link | Posted on Feb 6, 2015 at 21:46 UTC as 17th comment | 5 replies
On Opinion: The myth of the upgrade path article (1457 comments in total)

I agree completely. I use a Nikon 85/1.8 on APS-C. It's also a great lens on FF. But I enjoy it on APS-C as a long portrait/candid lens. I have no interest in an 85 on FF (I also have no interest in a 50 on APS-C). So an upgrade means selling the 85 and getting something else. My 35mm normal is only a DX lens, but even if I sprung for the 28/1.8 (my preferred FL on APS-C) I'd have another great lens on FF that I don't want. I'd sell it and get a 50.

Direct link | Posted on Jan 8, 2015 at 19:36 UTC as 372nd comment
On Canon announces five PowerShot compacts article (150 comments in total)

Oh, I get it. Canon is trying to win the aperture race. 20MP is pretty big. 45X zoom is pretty big. And f/7 beats all the competitors that only hit f/6.9 wide open. Go Canon !

Direct link | Posted on Jan 5, 2015 at 16:03 UTC as 50th comment
In reply to:

Cane: Shocker, the crowd in God's waiting room doesn't seem to like this product. Now only if they made a camera specifically to shoot birds.

Thom Hogan keeps saying that if Nikon & Canon want to grow their sales again, they need to start solving user problems. Seems Casio is listening !

Direct link | Posted on Dec 5, 2014 at 04:18 UTC

Take that, mirrorless fans !

Direct link | Posted on Dec 4, 2014 at 21:02 UTC as 40th comment | 1 reply
In reply to:

sneakyracer: Yeah, clock keeps ticking and the current mirrorless players keep improving their cameras while Nikon and Canon wait and wait. By the time they decide to get into the game it might be too late. The Canon and or Nikon mirrorless offering would have to be insanely good to compete.

There's this assumption implicit in posts like these that the world is going to move to reduced registration distance systems. Nikon & Canon have each sold something like 100,000,000 lenses for their systems. They'll do mirrorless soon enough, but they'll do EOS and F mount mirrorless, and on the day each one hits the market, it will have a huge lens lineup available to it. After that, the only advantage to the existing mirrorless systems is a bit of size & weight. Nikon & Canon may simply choose to skip the r&d and let Sony, Fuji, Olympus, Panasonic, Samsung fight for pieces of the gotta-have-a-little-bit-smaller-than-a-DSLR camera crowd.

Direct link | Posted on Nov 20, 2014 at 19:42 UTC
In reply to:

thomas2279f: Sony delivering a good range of Full Frame Mirrorless camera and range - making a mockery of the other 2 previously large Camera companies Canon and Nikon.

How ? Sony has a couple variations on the A7, and a few lenses. How does that make a mockery of anything ?

Direct link | Posted on Nov 20, 2014 at 19:35 UTC
In reply to:

Dennis: Smart, Canon ! Following the Pentax model of success.

Well, you know, it's hard to keep up with Pentax. They did the colors and the designers and have moved on. They're one step ahead.

Direct link | Posted on Sep 27, 2014 at 22:44 UTC

Smart, Canon ! Following the Pentax model of success.

Direct link | Posted on Sep 27, 2014 at 16:43 UTC as 52nd comment | 2 replies

That was a better interview than the Nikon one; I don't like a lot of what Sony does, but this executive seemed to have much better market awareness and a strategy to pursue.

Direct link | Posted on Sep 24, 2014 at 12:42 UTC as 54th comment | 2 replies

It would be better to just say "we can't disclose plans". Instead, "we're studying that"; "it's hard to commit to a strategy" ... sounds like they're floundering. And their top two priorities are responsiveness and image quality; things that are already excellent., but no plans to do anything about usability, convenience, connectivity. Oh well; at least they're still competitive while everyone else flounders to varying degrees.

Direct link | Posted on Sep 23, 2014 at 20:29 UTC as 72nd comment
Total: 180, showing: 1 – 20
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