Cheng Bao

Cheng Bao

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

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Total: 138, showing: 1 – 20
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On Budget X: Hands-on with Fujifilm's new X-A2 article (154 comments in total)

From slide 7, we can see sensor with gold fingers.
This is a different sensor than x-pro1 sensor without x-trans CFA as shown in this video
https://www.youtube.com/watch?v=6koZ-3KqahA

Direct link | Posted on Jan 15, 2015 at 21:07 UTC as 30th comment
On Fujifilm releases XQ2 premium compact article (58 comments in total)
In reply to:

RedFox88: DPR: 2/3" is really 1/1.5". Use common nomenclature to make it not sound like a much bigger image sensor.

Camera industry use 2/3" at least as early as year 2000, why they didn't use 1/1.5" at first place is another puzzle.

Direct link | Posted on Jan 15, 2015 at 17:33 UTC
In reply to:

arrow501: In response to the coments regarding mobile phones and digital zoom. Digital zoom is not a substitute for optical zoom. There is more to zoom than just getting closer. Digital zoom does not compress a scene like optical zoom does.

Yes, it does. In perspective relation view point aka compressing a scene, digital zoom does exact same as optical zoom. Only it degrades IQ much more than optical zoom.

Direct link | Posted on Jan 15, 2015 at 01:24 UTC
In reply to:

mpgxsvcd: Samsung has the exact opposite strategy as Canon. Samsung knows that if they build a quality product with lots of features their customers will still be willing to spend the same amount of money and not ask for rock bottom prices.

They also know that if they are not leading the industry then there will be no catching up. It is lead or simply get out of the way and die by the roadside.

Canon on the other hand believes that its customers are for life. They believe that as long as they don’t change things too much their customers won’t want to change too much. Canon’s market share will be drastically reduced by the end of this year thanks to innovations by Sony, Olympus, Samsung, Panasonic, and even Nikon.

@Impulse
If your logic is "sony has had a few years, but failed to grab mass market, so I am looking forward to Samsung",
well, the fact is, samsung actually has one more year in mirrorless market than sony, and still has less market share than sony.

Direct link | Posted on Jan 13, 2015 at 21:42 UTC

Should it be called CES 2015?

Direct link | Posted on Jan 13, 2015 at 20:29 UTC as 133rd comment | 6 replies
In reply to:

CanonKen: Is there any reason you could not have 'slow' (f/2-2.8) Leica-sized lenses for say 24, 35, 50, 85mm? Not talking these MF things, but small, light, AF, Sony-made lenses that would complement the small size of the body?

They have the 35mm f/2.8 now, which is small, light, and 'fits' the a7 well, but all the new stuff seems huge compared to the compact body.

28/2 is a good start, and 55/1.8 is in fact very light and small

Direct link | Posted on Jan 9, 2015 at 23:41 UTC
In reply to:

mosc: so the A7-II with an f2.0 28mm lens is pretty small and all but it's also very bright and 5-axis stabilized. Am I wrong or is that the largest physical aperture (fstop is a ratio, I'm talking about the physical aperture) stabilized lens seen for 28mm?

Methinks there were some Alpha 35mm lenses that can be used with the IBIS A99 SLT but none that fast at 28mm.

I didn't see anywhere mentions that 28/2 has OSS. If you consider IBIS, there are canon 28/1.8, leica 28/1.4 etc, both can be mount on A7ii and get IBIS

Direct link | Posted on Jan 9, 2015 at 23:27 UTC
In reply to:

nerd2: I just want an affordable 50mm 1.8 like everyone else.....

Yes, F1.8-2 range seems a sweet spot between cost and quality and size for FF primes. Nikon 28/35/50/85 F1.8 series is pretty affordable for those want large aperture but shy from the cost and weight of F1.4 lenses

Direct link | Posted on Jan 9, 2015 at 21:30 UTC
On Sony issues firmware 1.10 for Alpha 7 II article (59 comments in total)
In reply to:

Cheng Bao: Actually, all three mentioned improvement are same thing: improvement over video
1. when half-pressing the shutter,
2. in 'Focus Magnifier' mode,
3. during movie recording

and SAR just posted a pretty good comparison for video IS before and after

Edit: it is not before and after firmware update, it is ibis on/off comparison.

Direct link | Posted on Jan 9, 2015 at 04:01 UTC
On Sony issues firmware 1.10 for Alpha 7 II article (59 comments in total)

Actually, all three mentioned improvement are same thing: improvement over video
1. when half-pressing the shutter,
2. in 'Focus Magnifier' mode,
3. during movie recording

and SAR just posted a pretty good comparison for video IS before and after

Direct link | Posted on Jan 9, 2015 at 00:36 UTC as 11th comment | 3 replies
On Toshiba announces world's first SDHC card with NFC article (52 comments in total)
In reply to:

Cheng Bao: just tap on card? where is power supply?
If the card has to be inserted into a camera with power on, I don't know if camera body will block NFC

It is only works on phones without NFC but having a microsd slot -- oops, it is SD format, no microsd, so no phones can accept this.

for cameras, it brings the question if metal casing of camera body could block NFC signal

Direct link | Posted on Jan 8, 2015 at 20:41 UTC
On Toshiba announces world's first SDHC card with NFC article (52 comments in total)

just tap on card? where is power supply?
If the card has to be inserted into a camera with power on, I don't know if camera body will block NFC

Direct link | Posted on Jan 8, 2015 at 01:08 UTC as 17th comment | 2 replies
On Fujifilm announces XF 16-55mm F2.8 R LM WR lens article (295 comments in total)
In reply to:

whyamihere: The most popular complaints appear to be:

"It's heavy and big!" I'm not sure what you were expecting out of a f/2.8 zoom made mostly of metal and glass. It's about the same size and weight as most other f/2.8 APS-C zooms out there.

"If I attach this lens to my Fuji camera, it's no longer the ultimate travel camera!" Unless you lost all of your other lenses, you can still mount them to your camera when you travel.

"It has no IS!" Most zooms of this type don't, either.

"But the Canon and Samsung lenses have IS!" Those lenses also have inconsistent optics. Which is more important to you: IQ or IS?

"It's overpriced!" Except it costs roughly the same as the competition.

I don't own Fuji gear, but, come on, these arguments are pretty weak.

" However, if we count IBIS, then any lens I attach has IS, regardless of who makes it and what lens mount it was made for... because, y'know, adapters."

Actually, no, esp. for this fujifilm XF 16-55 F2.8 lens. It can't be mount on any body with IBIS w/o losing the ability to focus far field, because its shortest flange range among major brands. So original argument stands: all but nikon and fujifilm F2.8 standard zoom lenses can be used with some sort of IS natively without adapter. nikon 17-55 lens might be used on future sony aps-c models with IBIS. However, xf 16-55 remains w/o IS in foreseeable future.

Direct link | Posted on Jan 7, 2015 at 00:29 UTC
On Fujifilm announces XF 16-55mm F2.8 R LM WR lens article (295 comments in total)
In reply to:

whyamihere: The most popular complaints appear to be:

"It's heavy and big!" I'm not sure what you were expecting out of a f/2.8 zoom made mostly of metal and glass. It's about the same size and weight as most other f/2.8 APS-C zooms out there.

"If I attach this lens to my Fuji camera, it's no longer the ultimate travel camera!" Unless you lost all of your other lenses, you can still mount them to your camera when you travel.

"It has no IS!" Most zooms of this type don't, either.

"But the Canon and Samsung lenses have IS!" Those lenses also have inconsistent optics. Which is more important to you: IQ or IS?

"It's overpriced!" Except it costs roughly the same as the competition.

I don't own Fuji gear, but, come on, these arguments are pretty weak.

"It has no IS!" Most zooms of this type don't, either.

Canon 17-55/2.8 "IS"
Samsung S 16-50mm f/2-2.8 ED "OIS" and it has F2 too
Panasonic LUMIX GX VARIO 12-35mm/F2.8 "OIS"
Olympus 12-40mm/2.8 with IS on body
pentax 16-50 f2.8 with IS on body
sony 16-50 f2.8 with IS on body

so beside nikon, fujifilm is the only 16-50/2.8 type lens without any IS option.

Direct link | Posted on Jan 6, 2015 at 21:25 UTC
On Samsung NX mini Review preview (105 comments in total)
In reply to:

Ashuaria Lee: Oh..forgot to mention the "Switch over to Raw and it becomes apparent that there isn't much difference in resolution in these sensors" part.

Did they ever SAW the RAW ISO6400 comparison?
The RAW 6400 of mini looks very similar to the SONY body before(Not the new ones). They are smudged and blurry...And the details are lost..

I know that NX-mini and RX-100 has the same sensor..but the RAW comparison results are QUITE different.

Every single spec of nx-mini sensor match sony IMX183CQJ(http://www.sony.net/Products/SC-HP/new_pro/may_2014/imx183_e.html), exactly same physical dimension, exactly same output pixels 5472 (H) × 3648 (V), same total pixels because different round precision: 21MP vs 20.95 MP, same effective pixels because different round precision: 20.5MP vs 20.48MP.

It even has exact same resolution for 60 fps burst mode(2736 x 1824). So much similarity tell us, it is the same sensor as IMX183CQJ.

Direct link | Posted on Dec 23, 2014 at 23:29 UTC

I'd like to see this tech comes to mid-range FF camera with low sensor resolution like Df, A7s, 1Dx(strip down to some lower class body).

So, I can have both high ISO performance or low ISO resolution in same affordable package.

Direct link | Posted on Dec 17, 2014 at 18:39 UTC as 8th comment | 1 reply
On Canon EOS 7D Mark II Review preview (1235 comments in total)
In reply to:

ttran88: Why doesn't Canon use Sony's sensors, they can make a camera with best lens selection, best sensor, best feature set. Apple does it they buy processors and LCD from Samsung their biggest competitor. Customers come first Canon!!!

It is hilarious to see some ones called DXOMark scores are pure data manipulation, and meaningless to real world shooting.

Now DPR provides an excellent real world comparison, then they blindly ignore it and dug in to their own data manipulation to make canon's scores look better.

Direct link | Posted on Dec 16, 2014 at 23:31 UTC
On Canon EOS 7D Mark II Review preview (1235 comments in total)
In reply to:

lightmatters: There're rumors that Canon would be using Sony sensors in upcoming cameras.
I just wonder what is the next thing from Canon will be bashed after the bad DR is fixed.

Literally canon is not lying, the FF sensors they have got some advantages esp in higher ISO, which got beaten only by A7s, and A7s' sensor is not commercially available to canon.

and 70D and 7D2 sensors are best for video AF that available for canon, canon screwed video function except AF on 70D and 7D2 is another story.

For grand old sensors for EOS M2, 700D etc... Well, canon could say no one else make 1.6x sensors for them, so canon's is the best

Direct link | Posted on Dec 16, 2014 at 23:20 UTC
On Enthusiast mirrorless camera roundup (2014) article (304 comments in total)
In reply to:

plasnu: Which camera should I buy? Sony, but I didn't know that Sony is not the enthusiast mirrorless camera.

So I just wonder what cameras will classes with a7 in your round-up? Only a7s and a7ii, since.no other milc are in same category by dpr standard. Or with leica T, 645Z, hassleblad stellar ii for i-dont-know-where-to-place-them category?

Direct link | Posted on Nov 27, 2014 at 08:36 UTC
On Ten things you need to know about the Sony Alpha 7 II article (270 comments in total)
In reply to:

braisim: It's actually the first sensor stabilisation on a MIRRORLESS full frame camera. All Sony full frame DSLRs and DSLTs have sensor stabilisation. DP Review shows its ignorance of the Sony system (also through its refusal to review the A77 Mark2).

I think he meant for you original news article, not this one

Direct link | Posted on Nov 26, 2014 at 23:59 UTC
Total: 138, showing: 1 – 20
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