Cheng Bao

Lives in United States United States
Joined on Oct 3, 2003

Comments

Total: 411, showing: 1 – 20
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On article Panasonic Lumix DC-GH5S Review (582 comments in total)
In reply to:

gmke: A considerable noise has been raised over whether the GH5S sensor is derived from the IMX294CJK sensor which explicitly sports the BSI fabrication feature, and which would do more to explain deep ISO in comparison to the front side chip in the A7S-II. The full frame comparison vis-a-vis cell area alone is kind of lame in my view unless you account for the huge disparity in the percentage of cell area devoted to light gathering. Front side chips are dramatically dominated by non-sensitive circuity, so the area comparison is apples and oranges.

The sensor is probably BSI.

Note Panasonic is very reluctant to admit they are using BSI sensor, since its sensor department was spinning about FSI > BSI. Their latest 1" model and a few small DC certainly using BSI sensor from sony, however, panasonic never state BSI in press releases.

Link | Posted on Jan 10, 2018 at 00:17 UTC
On article Our favorite gear, rewarded: DPReview Awards 2017 (526 comments in total)
In reply to:

AKH: Canon is the big winner and sells, by far, more cameras and lenses than anyone else and Nikon is the clear number two after Canon :-)

Consider for first half of FY18 (03/17-09/17) report:
Profit:
Nikon as whole: 23,017 M JPY
Sony IP&S: 23,200 M JPY for Q1 (03/17-06/17)
I dare not say nikon makes more money than sony/olympus/fuji/pentax combined.

Link | Posted on Dec 12, 2017 at 03:37 UTC
On article Sony a7R III sample gallery updated (83 comments in total)
In reply to:

cbphoto123: In continuing DPR's ethical standards of reporting/reviewing camera equipment, shouldn't it be mentioned that Sony sponsored this shoot?

guess who paid reviewers to Yellowstone to test 6d ii
https://www.dpreview.com/samples/8692662059/canon-eos-6d-mark-ii-pre-production-sample-gallery
http://www.imaging-resource.com/PRODS/canon-6d-mark-ii/Y_MG_0396-BETA.HTM
and D850?
https://www.dpreview.com/reviews/nikon-d850/7
http://www.imaging-resource.com/PRODS/nikon-d850/Y-wb-nikon-d850-DSC_0768.HTM

Link | Posted on Nov 27, 2017 at 16:38 UTC
In reply to:

LessMirrored19: Nikon's sensor is brand new. Sony's is mostly 3 years old. Either Sony's is impressive or Nikon's failed.

Sony claimed same sensor. And its readout speed is same, while A99II with same sensor can achieve 11 fps

Link | Posted on Nov 1, 2017 at 01:27 UTC

so, no support for A7Rm3 although it is still 2017 product

Link | Posted on Oct 26, 2017 at 16:08 UTC as 52nd comment | 3 replies
On article Google shares high-resolution Pixel 2 sample photos (171 comments in total)

Most of them are very good.
However, why #20 and #27 looked like heavy processed by water color filter @iso50?

Link | Posted on Oct 9, 2017 at 20:37 UTC as 69th comment | 3 replies
In reply to:

Cheng Bao: Reborn of Sony QX, with auto shot

sony also have ipt-ds2, which can auto rotate and shot photo too.

Link | Posted on Oct 4, 2017 at 20:42 UTC

Reborn of Sony QX, with auto shot

Link | Posted on Oct 4, 2017 at 20:37 UTC as 45th comment | 1 reply

DXOMark should include some of fixed-lens cameras in mobile ranking as reference to see how good (or bad) that phones performs against "real" cameras

Link | Posted on Oct 3, 2017 at 23:31 UTC as 52nd comment | 2 replies
In reply to:

Wout de Zeeuw: The bird in flight photo looks encouraging, more of this please! This camera is starting to look like an excellent bif camera!

Bif? I didn't see any BIF sample from dpr.
i-r attended same event has a few BIF though.

Link | Posted on Sep 14, 2017 at 19:09 UTC
In reply to:

BertIverson: RX10M4 Price is no different from the RX10M3 which sold for $1700 for a while. M3 price has been gradually reduced over the past few months to $1300 in anticipation of the M4 introduction. Given the M4 improvements, I am surprised M4 is not $1800.

According to sony PR, RX10M3 introduction price is $1500
Pricing and Availability

The new Sony Cyber-shot RX10 III extended zoom camera will be available this May for about $1,500 US and $2,000 CA, respectively. The new cameras and all compatible accessories will be sold at a variety of Sony authorized dealers throughout North America.

Link | Posted on Sep 14, 2017 at 02:32 UTC
In reply to:

Androole: The only thing I'm interested here is the supposedly new Bayer Filter technology they're talking about...

Any chance we could get a tech article?

This techniques is nothing new. Sony A900 is known for sacrifice high-iso for a little better color fidelity. However, color fidelity is very subtle and hard to measure, but high iso noise is more prudent for users to view.

To Doug Pardee
Human eyes are not capable for capture "full spectrum". This technique is attempting to more closer to perception of human eyes

Link | Posted on Sep 13, 2017 at 15:39 UTC
In reply to:

zeratulmrye: “Sony's camera team has not been aware of the Nikon D850's sensor all along, prepping a response to it years in advance...”

Is this Sony confirming that D850 is using their sensor?

Since we never see Sony brags about "Company A's camera model X uses Sony's sensor",
It is pretty safe to assume that sony semiconductor are under heavy NDA not to disclose customer's info, by customer's requirement.

So, it is highly unlikely that sony themselves will talk about origin of D850 sensor.

Link | Posted on Sep 11, 2017 at 22:51 UTC

I believe that sales of A700 must be horrible.
That's why I got fire sale of a a700 with low price not long after its release.

Also it took Sony four years to bring out an upgrade, while canon/nikon upgrade mid range aps-c DSLR each one and half year.

Link | Posted on Sep 7, 2017 at 18:39 UTC as 42nd comment
On article Sony a9 underwater review: Shooting great white sharks (50 comments in total)
In reply to:

entoman: Sounds like Sony wrote the script themselves.
But, assuming that they didn't, it seems to confirm everything in various reviews indicating the great AF performance of the a9.

Admittedly, using a 16-35mm lens at F8 isn't exactly the hardest of AF tests. A test with a macro lens with insects in flight would be interesting to see!

I'm tied into a Canon system, and I love Canon cameras, but Sony are getting better with every release, and I can't wait to see what they bring out next.

"They love the water, and they personally dive and shoot with the gear they sell. "

Since they selling gears, so it is very predicable that they wouldn't trash equipment in reviews.

Link | Posted on Aug 22, 2017 at 05:27 UTC
On article Advertising vs reality: microSD memory card speed test (71 comments in total)

If no one can surpass 80MB/s, one possibility is the limiting factor is card-reader -> usb cable, usb port, motherboard, the chain of data flow.

Link | Posted on Aug 7, 2017 at 23:27 UTC as 27th comment | 1 reply
In reply to:

happy guardian: The only question whether it will be an APS-C or a Full Frame. Something tells me it will be Full Frame.

Neither now demised Samsung nx
When E mount is first out, it's laughing stock for many people because it has huge mount.

I believe fujifilm must take clue from some of them, so they makes x mount smaller so the lens could be smaller.

Link | Posted on Aug 2, 2017 at 03:34 UTC
On article Ten things we're hoping for from the Nikon D850 (482 comments in total)
In reply to:

Dr Blackjack: Speculation yeah!

If a man is allowed to dream... I want that 42MP Sony sensor in the D850. That would be legendary.

I mean from high sensitive point of view , scaled up D500 won't be degeneration from D810

Link | Posted on Jul 28, 2017 at 00:44 UTC
On article Ten things we're hoping for from the Nikon D850 (482 comments in total)
In reply to:

Dr Blackjack: Speculation yeah!

If a man is allowed to dream... I want that 42MP Sony sensor in the D850. That would be legendary.

Although D500 has slightly worse per-pixel SNR18%, however, it does has dual-gain ADC, which translated to much cleaner shadow area at high ISO as per-pixel level. and the difference of normalized high ISO DR would be significant.

It is perfect for night sky shooting, which is depicted in D850's teaser

Link | Posted on Jul 26, 2017 at 23:58 UTC
On article Ten things we're hoping for from the Nikon D850 (482 comments in total)
In reply to:

Dr Blackjack: Speculation yeah!

If a man is allowed to dream... I want that 42MP Sony sensor in the D850. That would be legendary.

fix: ISO100 print DR of D850 (projected) is 14.56

Link | Posted on Jul 25, 2017 at 21:44 UTC
Total: 411, showing: 1 – 20
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