Peng Bian

Peng Bian

Lives in United States Boston, MA, United States
Works as a Program Manager
Has a website at
Joined on Sep 18, 2012


Total: 26, showing: 1 – 20
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In reply to:

jesus_freak: Video bit rates seem strange.
3840x2160 @ 24p is 102Mbps, but 1920x1080 @ 24p is 202Mbps?

And 1920x1080 @ 60p is the lowest at 52Mbps? That seems odd.

I hope there's some kind of mistake, that it's going to be 202Mbps for 4K as well. That would make much more sense to me.

Link | Posted on Sep 20, 2016 at 05:25 UTC
On article Inching forward? Canon PowerShot G5 X review posted (387 comments in total)
In reply to:

riyanto ong: At a glance, this camera is like a Nikon 1 V2 with articulated LCD display and non-interchangeable lens ..... :)

The mated lens makes it much smaller profile than a Nikon equivalent, as well as Sony sensor inside much better than the Nikon 1"... so it's got that going for it.

Link | Posted on Mar 21, 2016 at 15:18 UTC
In reply to:

rfstudio: canon cameras takes amazing pics but they are all freaking ugly, the design engineers need to do better job

How bout I give you a great looking camera that takes amazing pictures. "I'll take functionality over looks" is not the same as "your definition of beauty is different from mine". What point are you arguing?

Link | Posted on Oct 14, 2015 at 11:09 UTC
In reply to:

Cihangir Gzey: I had mentioned my warns for very incapable battery life for that power hungry 1" sensor which will make you crazy after a while. But more than that nobody seems to care about below matters as well:
-M10 has much thicker lens than that of Olympus E-M10 II (which has IBIS, much wider lens selection, thinner, cheaper, etc. etc.). I can't see a point over there. Just an ordinary another ILC!
-G5X would be a very good option with a much bigger battery. IMHO, without a proper entry level DSLR battery (which would give it hundreds of shots more), with that tiny NB-13L, it is almost born dead! Good luck changing (and changing and changing) batteries on a cold day having a travel photography with this big guy. Nonsense!
-G9X. It has 28-84mm lens. Year 2015 and wide angle on a P&S is 28mm. Totally unbelievable! This is like an RX100 original, right?

Seriously, G7X was at least pocketable, but having used LX100, RX100, and G7X, G7X is just crap in terms of ergonomics and responsiveness. Now G5X still falls behind LX100, and is no longer in the same league as RX100. They must think that people will buy cameras just because of the Canon logo.

Also who designed it? It looks frickin' hideous.

Link | Posted on Oct 14, 2015 at 11:02 UTC
On article CP+ 2015: Nikon shows off new D810A (65 comments in total)
In reply to:

Baba Ganoush: This camera, we're told, is highly specialized and designed especially for astrophotography, so why does Nikon display it with a 24mm wide angle lens instead of a long telephoto (or even a telescope)? Does Nikon think this lens is appropriate for astrophotography or are they trying to suggest the D810A has other, more general uses? Seems to me like another case of a disconnect between Nikon and actual Nikon users.

Over-thinking leads to bad... uh where am I? Oh right, every once in a while people into astrophotography will still want to take shots of the entire night sky, maybe? Milky way is a celestial body much like those further away, I dunno...

Link | Posted on Feb 12, 2015 at 23:21 UTC
In reply to:

Drazen Stojcic Buntovnik: I would guess that DJI Inspire II would feature a MFT standard lens mount with probably 2 or 3 interchangable lenses. Probably a fisheye, a wide angle and a "normal" 35mm-like lens. Most likely these lenses would have to have same or very similar weight and center of gravity. Something like that would potentially be a game changer in drone photography / videography.

Hopefully lot of the smaller M43 lenses should work as well. If you had to use only their lenses, well, kinda defeats the purpose.

Link | Posted on Feb 12, 2015 at 11:16 UTC
On article 3,200 megapixel LSST camera gets construction approval (257 comments in total)
In reply to:

princewolf: I'm not interested in things I can't buy.

That's just what poor people tell their children...

Link | Posted on Feb 3, 2015 at 14:00 UTC
In reply to:

PerL: I think the media companies that are downsizing their print/magazines business, and the advertisers, and instead focuses on the internet misses one thing, that will be more and more relevant.
The channel (internet) is getting extremely crowded. Through that screen you compete not only with millions of other media sites but also with peoples mail, Facebook, all kinds of social media. There will be a digital clogging.
A physical product is a way to get attention beside the constant and increasing flow of digital noise.

Physical products are great, but we're talking about magazines specifically, which is in every way inferior to its digital counterpart, unless it's one of those perfume ads page I guess.

Link | Posted on Jan 29, 2015 at 00:46 UTC
On article Canon to move camera production back to Japan (109 comments in total)
In reply to:

mpgxsvcd: They are taking all of their toys and going home like a petulant child.

Man, you guys need to take that bug out of your ass. The comment was obviously made in jest.

Link | Posted on Jan 13, 2015 at 00:25 UTC
On article BPG image format aims to replace JPEGs (204 comments in total)

Any compression deals with perceived quality by humans, which will be different from a straight up SNR comparison. To be honest, in most cases, looking at my RAW and JPG side by side, I'm not seeing the compression artifacts as much as the noise from the exposure and softness of the image from the lens not providing theoretical maximum resolution, and both exist in the RAW.

Link | Posted on Dec 16, 2014 at 18:58 UTC as 17th comment | 1 reply
On article BPG image format aims to replace JPEGs (204 comments in total)
In reply to:

Peter K Burian: Here's a different perspective on this topic, IMHO:

For a new format to succeed, it would also need to be a capture option that cameras offer. ***Not just a format for use on Web sites.***

That would require all camera companies AND all software manufacturers get on this bandwagon. But they won't. The concept of a familiar JPEG format (especially for 90% of the population who are snap shooters, at best) is essential for the market. The fact that BPG is far superior is not relevant. It boils down to marketing and what the public will accept, as the camera manufacturers see it. Too many consumers would find a new image format to be an extra complication to deal with.

Serious shooters already have RAW capture as an alternative to JPEG. And snap shooters are happy with JPEG; they just don't know any better, and 90% do not even *want* to know.

During my masters I studied wavelet transformation and JPEG2000 quite extensively, it is so much superior compared to JPG, and probably BPG, given H.265 is still based on older DCT technology. But block DCT is already optimized with current hardware whereas wavelet is not, which is why BPG has a higher chance of success.

Link | Posted on Dec 16, 2014 at 18:43 UTC
On article WaterWeight rethinks the sandbag approach to stability (77 comments in total)
In reply to:

BSHolland: Wow... stress tested by applying up to 6.8kg of force? I regularly use my camelbak. Attach to bottom hook of tripod, keeps me hydrated when out in the field AND serves as an air- or water-cushion on the ground in front of my tent after the shoot. That's 75kg of "stress test".

FrAME of reference the iPhone 6 plus, prone to bending still required 90 pounds of force before deforming. And that's a delicate piece of electronic equipment.

Link | Posted on Dec 9, 2014 at 11:47 UTC
On article WaterWeight rethinks the sandbag approach to stability (77 comments in total)

My tripod costs less than this useless invention.

Link | Posted on Dec 9, 2014 at 11:30 UTC as 32nd comment
On article High-end full frame roundup (2014) (610 comments in total)
In reply to:

refusenik: Hmmm, DPR are being inconsistent here - they don't like that the Sony A7/r/S doesn't have a built-in flash but don't seem bothered that the Canon 6D and 5D don't have built-in flash either.

Hit the nail on the head. Dynamic range is very important, more so than ISO performance in some cases. This is just an area that Canon trails so far behind the competition.

Link | Posted on Dec 8, 2014 at 10:57 UTC
On article Sony Alpha 7 II real-world sample gallery posted (244 comments in total)
In reply to:

Peiasdf: I get less and less of the British humor DPReview like to post. Maybe it is a result of DP joining mothership in Seattle and the horrible weather there. Most sample image aren't interesting to look at. Good for technological analysis but simply don't wow unlike marketing material. If only DP can move to Florida, Arizona, California or Hong Kong.

Yeah, hire someone like Ming, he can crank out a lot of shots, but they always look great. Makes reading reviews and impressions much more interesting.

Link | Posted on Dec 7, 2014 at 10:49 UTC

Plot twist, Pentax offers contest winner 645Z in exchange for 1 month PhaseOne loaner. Slogan, "for the same price, own a PhaseOne for a month or a Pentax for a lifetime".

Link | Posted on Dec 6, 2014 at 09:34 UTC as 30th comment
On article Panasonic Lumix DMC-LX100 Review (1008 comments in total)
In reply to:

mpgxsvcd: Everyone complains that the LX100 has too low of a resolution and that its lens is a compromise. I am looking at the RAW indoor test scene images and I honestly see that the LX100 has more detail than the Sony RX100 MKIII across the entire frame for all ISO values.

The difference in noise for the cameras is not huge but the LX100 is better. I don't get why everyone says that the Sony has more detail. It doesn't show in the pictures. Just because the resolution is more doesn't mean that it actually has more detail.

I would suggest you play around with the new lens performance widget. The studio test scene is shot at 1 focal length and 1 aperture (stopped down). If instead of looking across the entire ISO range which is more about sensor performance you looked at the focal length and aperture range, you will notice that it isn't so clear cut. With Sony taking the lead in some cases and the Panny in others.

Link | Posted on Nov 22, 2014 at 00:23 UTC
On article Canon PowerShot G7 X Review (457 comments in total)
In reply to:

Donnie G: I was convinced that I wasn't among the consumers that Canon's G7 X was made for because I have never been interested in owning any compact camera. Boy was I wrong. Although I have no interest in owning compact cameras, my teens are very interested in the category, and I am their "deep pockets". So I wound up buying 2 G7 X cameras, one for him and one for her. Between the 2 of them, they were able to setup the cameras without any input from "the broke old guy". After about 10 days, my gorgeous gal pal, Brandi, and I were able to decipher enough teen slang to learn that the camera features they worship the most are the programable click wheel around the lens collar, the articulated touch screen, and the ability to upload images to social media via Canon's Image Gateway service. I don't think that these kids are even aware of the other features, such as sensor size, lens speed, focal length, or even IQ. It takes better photos than their smartphones and their friends think its cool. :)

I don't know if I agree with this. The younger generation are generally pretty tech savvy and most are now aware of the battle of image sensor size versus MP count, as well as aperture size. And this camera's external design is too inconspicuous for it to be considered a status symbol by their peers.

Link | Posted on Nov 12, 2014 at 08:50 UTC
On article Canon PowerShot G7 X Review (457 comments in total)

It's obvious Canon skimped on the processing unit to cut down on costs. The RAW shooters will have a hard time swallowing the continuous shooting speed.

Link | Posted on Nov 12, 2014 at 08:42 UTC as 106th comment | 1 reply
In reply to:

Peng Bian: Anyone know what lens is on the 5100? I'm on my mobile can't see exif.

No wonder it's so sharp in the corners.

Link | Posted on Oct 15, 2014 at 02:42 UTC
Total: 26, showing: 1 – 20
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