Chris Noble

Chris Noble

Lives in United States MA, United States
Joined on Jan 19, 2012

Comments

Total: 58, showing: 1 – 20
« First‹ Previous123Next ›Last »

Hasselblad: Hassle + blah = Bad.

Direct link | Posted on Nov 25, 2014 at 22:53 UTC as 114th comment | 1 reply
In reply to:

justmeMN: Olympus just announced more financial losses for the Imaging division.

I guess they are going to cut costs by selling empty tubes, rather than actual lenses. :-)

An engineering sample is a functional unit that is built manually to verify the design. Pre-production units are built in small quantities, but using the manufacturing process, to verify that. An empty tube with an uncoated front element is neither an engineering sample nor a pre-production sample. Sloppy journalism.

Direct link | Posted on Nov 10, 2014 at 00:44 UTC
On -Pride Parade- (Full Colours Only+ Border ) challenge (5 comments in total)

What is a "Pride Parade"? Is it different from a Gay Pride parade or any other type of parade?

Direct link | Posted on Oct 27, 2014 at 14:55 UTC as 4th comment | 1 reply
On Altai, Russia challenge (3 comments in total)

Why the "Please state the circumstances of your stay there."? (Stated twice in the rules!).

Direct link | Posted on Oct 25, 2014 at 11:58 UTC as 2nd comment | 1 reply
On -The Quiet Street- (Full Colours Only + Border) challenge (5 comments in total)

How do I enter a photo for consideration if I have not won a challenge?

Direct link | Posted on Oct 15, 2014 at 23:45 UTC as 1st comment
On Photokina 2014 Video: The Canon G7 X article (143 comments in total)

What is a "large 1 inch-type sensor"? Is that different from a regular 1-inch type sensor? DPReview news coverage looks more and more like advertising.

Direct link | Posted on Sep 23, 2014 at 17:05 UTC as 3rd comment | 1 reply
On Exposure vs. Brightening article (22 comments in total)
In reply to:

barryhk: I think I understand this article.

Just thinking how is this related to the "exporsure" and "brightness" settings in Lightroom... I wonder in Lightroom, they are basically the same thing. i.e. increase exposure actually increase the amplification....

Am I wrong?

ETTR is always "possible"; it is a method for setting the exposure. And amplification of the signal using the analog amplifier before digitizing and recording the image (i.e. adjusting the ISO) often has a very different result from adjusting the "brightness" (a very fuzzy term) in post-processing. Among other differences, ISO gain is linear across the dynamic range of the image, whereas the various sliders that control "brightness" are intentionally non-linear. Another difference is that the noise characteristics are very different; the analog amplifier noise is essentially flat at a given ISO setting, whereas the round-off noise that is added by the digital manipulations in post-processing is significant for weak signals (shadows) and essentially zero for high signals (highlights). Lumping these very different adjustments into one "brightening" is causing some confusion among many of the readers, as evidenced by the questions.

Direct link | Posted on Sep 21, 2014 at 22:10 UTC
On Exposure vs. Brightening article (22 comments in total)
In reply to:

barryhk: I think I understand this article.

Just thinking how is this related to the "exporsure" and "brightness" settings in Lightroom... I wonder in Lightroom, they are basically the same thing. i.e. increase exposure actually increase the amplification....

Am I wrong?

The term "brightening" as it is used in this article is confusing and rather misleading, as it lumps together an adjustment that is made before the exposure is recorded (ISO), and adjustments that are made after the exposure is recorded (PP sliders). The difference is crucial for a variety of reasons related to both the technique and esthetics of proper recording+post-processing.

Direct link | Posted on Sep 21, 2014 at 14:29 UTC
On Hands-on with the Panasonic Lumix DMC-GM5 article (309 comments in total)

Can I use the new small flash on my G5?

Direct link | Posted on Sep 15, 2014 at 22:10 UTC as 58th comment
In reply to:

Chris Noble: A full-frame vs. u43 comparison is silly. Far more useful and relevant would be a GH4 vs. Olympus E-M1 comparison.

Well, I read the more recent comments and I stand corrected.

Direct link | Posted on Aug 4, 2014 at 23:26 UTC

A full-frame vs. u43 comparison is silly. Far more useful and relevant would be a GH4 vs. Olympus E-M1 comparison.

Direct link | Posted on Aug 4, 2014 at 16:06 UTC as 181st comment | 7 replies
On Samsung Galaxy S5 camera review post (88 comments in total)

Good for you DPR for reviewing the cameras built into cellphones! Something that should be of keen interest to every avid photographer.

Direct link | Posted on Jul 9, 2014 at 23:09 UTC as 31st comment

Interesting advertisement. We prefer impartial and comparative reviews.

Direct link | Posted on Jun 28, 2014 at 12:52 UTC as 52nd comment | 3 replies
On Never forget a Photoshop or Lightroom shortcut again article (70 comments in total)

Excellent idea! But please change the white-on dark & tiny font, it is very hard to read. I suggest dark on white, and a colored key outline. Thanks!

Direct link | Posted on Jun 10, 2014 at 12:38 UTC as 3rd comment
On Get more accurate color with camera calibration article (208 comments in total)

This may be obvious to most, but you don't need to generate all your profiles before that big trip to unusual lighting conditions. Take a ColorChecker target with you and shoot it against important or complicated backgrounds when you think you might need it. You can generate profiles as needed when you return, and then use them for the money shots.

Direct link | Posted on Jun 2, 2014 at 13:12 UTC as 5th comment
On Is it true? New service detects processed photos article (88 comments in total)
In reply to:

bobbarber: OOC jpegs are processed, all of them.

You missed the point about what the software does. Did you read the article?

Direct link | Posted on May 7, 2014 at 12:34 UTC
On Apple releases 8GB version of iPhone 5c post (35 comments in total)

Over 2x the price of the Samsung S4 mini, worse screen, less storage, less powerful processor, no memory card storage, all the apps and cloud storage anyone wants are available on both platforms... Android market share now exceeds Apple and keeps rising... Apple is going to crash.

Direct link | Posted on Mar 19, 2014 at 00:48 UTC as 9th comment
On Nikon D4s unboxing: It's arrived! article (264 comments in total)

Interesting, but not very useful. I'd prefer to see a comparative unboxing vs. Canon.

Direct link | Posted on Mar 14, 2014 at 11:05 UTC as 48th comment | 1 reply

Interesting article! "When Sigma was founded there were over 50 lens manufacturers in Japan. Now there are only really three major ones - Tamron, Cosina and Sigma. We have survived because we make unique products. "

I wonder how many camera-branded lenses are actually made by these 3.

Direct link | Posted on Feb 16, 2014 at 21:50 UTC as 32nd comment | 3 replies
On ETTR Exposed article (18 comments in total)
In reply to:

Chris Noble: Good article Gollywop, thank you. However, in cases where the DR of the image is greater than 6-7 EV, it is often necessary to compromise between preserving highlights (by reducing exposure) vs. capturing shadow detail (by increasing exposure). In your example 1, the top 3-4 EV are "consumed" entirely by the small area of the window (50 pixels or so per exposure value), leaving most of the image exposed below -6 EV (50,000 pixels per exposure value, with no significant drop-off in pixel count even at - 12 EV). I would have added 2 to 3 EV to this exposure. You would have saturated a very small portion of the image (parts of the small window, which is not of great interest in this image), in return for pulling the majority of the image up out of the shadows. Same comment for example 3: the top 3 EV are (in my mind) "wasted" on keeping the sun below 0 EV, yet there is no tonal range there in the final image; meanwhile, the bulk of the image is below -6 EV. Just my opinion of course.

Hi Gollywop. I agree that your second example is correctly exposed, as I explained in my detailed comments (link above).

Direct link | Posted on Jan 5, 2014 at 15:00 UTC
Total: 58, showing: 1 – 20
« First‹ Previous123Next ›Last »