teddoman

teddoman

Lives in United States New York, NY, United States
Joined on Nov 20, 2012
About me:

http://www.flickr.com/photos/tedchang/

Comments

Total: 105, showing: 1 – 20
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On DxOMark Mobile Report: Motorola Moto X Style article (25 comments in total)
In reply to:

belle100: 1/2.3-inch. Big in Phone, but small in compact.

Big only if you ignore the big fish in the smartphone market, the Panasonic CM1 with a 1" sensor

Direct link | Posted on Jul 28, 2015 at 14:25 UTC
On LG G4 camera review post (77 comments in total)

LG has a promoted Tweet video advertising shutter speed control of the G4 https://twitter.com/LGUSAMobile/status/621802184745750528

Direct link | Posted on Jul 24, 2015 at 18:42 UTC as 8th comment
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Sonyshine: An impressive camera phone I would really quite like - the only thing that really puts me off ( price apart) is the complete lack of any lens protection - I can see it getting damaged and messed up too easily.

Turns out lens protection is easily resolved and made a non issue: http://www.dpreview.com/forums/post/56152023

Direct link | Posted on Jul 22, 2015 at 11:50 UTC
On DPReview recommends: Best smartphone cameras post (359 comments in total)

Rans some calcs for kicks, it's interesting that CM1's 1" sensor is 4.69x larger than Lumia 1520, giving CM1 about a 2.17 stop improvement (square root of the area ratio). Compared to the traditional 1/3" or smaller smartphone sensors used by the rest of the smartphones in this review, the CM1 sensor is 6.71x larger, giving the CM1 a 2.59 stop improvement.

The Nokia 808 surprisingly had a 1/1.2" sensor so very close to CM1. But for some people, the operating system may be a limit on some phones. The 2 biggest, iOS and Android, have a fairly mature app system. Don't know about Symbian, Windows and other operating systems.

Direct link | Posted on Jul 20, 2015 at 11:10 UTC as 5th comment
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Sutjahjo Ngaserin: I am a very happy user of Lumix DMC-CM1 and I think it's absolutely the best Phone camera today. Despite the general negative low light comments here, I also think it performed very well in low light. At least better than any other phone I know (And I am one phone freak trying out most high end phones in the market). Do note that I am NOT comparing this to NON-PHONE cameras.

Sutjahjo, are you on the CM1 flickr group or do you post your photos to the Panasonic forum here? Would love to see your photos on this phone

Direct link | Posted on Jul 16, 2015 at 21:13 UTC
In reply to:

teddoman: Didn't realize 4K video could be that atrocious. I guess the 360 degree software process really destroys detail.

But super cool concept.

Ah, good point

Direct link | Posted on Jul 15, 2015 at 11:40 UTC
In reply to:

teddoman: Didn't realize 4K video could be that atrocious. I guess the 360 degree software process really destroys detail.

But super cool concept.

Not sure, a 4K image is 8 megapixels. I'm sure the 360 degree view requires lots of edge cropping, but I can't see how it would downsize to a 2 megapixel (1080p) or smaller actual image. I'm guessing the GoPro 4K is probably a low quality 4K, and the software manipulation required to produce the "360 deg" view probably further degrades the image. But most people buying a GoPro want it to be light so they can do sports with it. Image quality isn't the only consideration. This 360 deg feature may be very important for a rock climber.

Direct link | Posted on Jul 14, 2015 at 15:54 UTC

Didn't realize 4K video could be that atrocious. I guess the 360 degree software process really destroys detail.

But super cool concept.

Direct link | Posted on Jul 13, 2015 at 23:59 UTC as 25th comment | 4 replies
On Sony Cyber-shot DSC-RX100 IV First Impressions Review preview (1312 comments in total)
In reply to:

markie_jan61: Agreed—an amazing camera. I'm old school and like to think of Sony as a descendant of Minolta which was my father's primary camera while I was growing up.

But the inclusion of an internal charger (versus a separate unit) would always be a deal-breaker for me. Not sure why they continue this practice.
--

There are usually Wasabi batteries with external chargers, so I wouldn't treat this is a limitation.

Direct link | Posted on Jul 13, 2015 at 15:49 UTC
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Gadgety: OK, not quite there yet. No OIS, garbage flash. Sure, it'll come in gen 2. Had it had it now, Pana would have gotten my money.

Can external flashes be used, or triggered by the internal one?

I'm dreaming of the Google Ara; a chassis/motherboard and exchangeable modules for rear screen, cameras, flashes, processor etc.

Founds a cool extension ring that you can put a filter or lens cap on http://turtleback.hk/en/177-37mm-mount-extension-for-panasonic-cm-1.html

Direct link | Posted on Jul 9, 2015 at 17:41 UTC
On Sony: An eye on focus article (758 comments in total)
In reply to:

LBJ2: *** In case you missed it: 'magnify' in playback now magnifies the AF point used at capture, rather than simply magnifying the center of the frame. No more scrolling over to the point of interest in playback to check focus; you now have one-click (albeit somewhat laggy) magnification of what was focused on. This extends to all three cameras: a7R II, RX100 IV, and RX10 II.

Thank you for pointing this out. I will find this feature very helpful

Daniel, are you sure? I tried this on my A6000 with firmware 2.0 and the AEL button for instant magnified image review still took me to center point. (I was using flexible spot AF)

Direct link | Posted on Jul 7, 2015 at 02:22 UTC
On Sony: An eye on focus article (758 comments in total)
In reply to:

Zorak: Ok, it's awesome, OK, I want one to replace my a7, but the price.... Why am I so poor ?

Amazing camera ______ will still be here in a few years. You can always buy it then.

Direct link | Posted on Jul 6, 2015 at 11:17 UTC
On White House ban on photos and social media has ended article (63 comments in total)

ILCs and long lenses sure get the short selfie stick on this one.

Direct link | Posted on Jul 2, 2015 at 21:51 UTC as 19th comment

"larger sensor read out data size" is tantalizingly vague.

Direct link | Posted on Jun 26, 2015 at 03:06 UTC as 13th comment

Environmental macro?

Direct link | Posted on Jun 23, 2015 at 21:09 UTC as 46th comment | 1 reply
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Michael Ma: When a phone can offer shallow DOF, I think I'll consider one. It doesn't really offer much more than a Note 4 which is sharper at the edges in bright light. I'd like to see it compared to a LG G4.

When I used compact cameras, I found you have to be more creative and mindful to achieve DOF separation. My sense is that for a 1/2.6" sensor, it's that much more out of reach. And more in reach for a sensor more than twice the size, though you still have to be creative to achieve it.

I didn't calculate it, but guessing there's a 1-2 stop improvement in high ISO shooting, just like there is when you step up from m4/3 to APS-C to FF. That diff might not matter to some but it does to a lot of ppl.

Direct link | Posted on Jun 22, 2015 at 17:44 UTC
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Michael Ma: When a phone can offer shallow DOF, I think I'll consider one. It doesn't really offer much more than a Note 4 which is sharper at the edges in bright light. I'd like to see it compared to a LG G4.

There are non-camera aspects to blur like distance to subject and background. I can create a photo with more blur using a 1/2.6" sensor than a photo from a medium format sensor. The only way such a comparison is meaningful is if you capture the same scene using the same settings and compare.

Direct link | Posted on Jun 22, 2015 at 17:16 UTC
In reply to:

mosswings: Other attributes of traditional PDAF that OS,PDAF has a fundamental problem matching come from the very optical system that limits trad PDAF's frame coverage. Imagig Resource's review with Mr. Maki was more specific about this, although neither touched on it exactly: trad PDAF has remarkable discrimination - the ability to not lose its place when tracking a small subject in a complex field. The pro DSLRs also couple their hifh-res exposure sensors to their AF sensors, so get a simultaneous PD and CDAFcapability that makes for extremely reliable acquisition and tracking at very low energy cost. OSDAF systems have to use complex dedicated readout channels and can't put as many pixels (better-effective sensing area) in a focus zone as can DSLRs, the latter the main reason why mirrorless struggles in low light.
If the a7rii's AF addresses the hunting problems of the a6000, I'd trade a loss of discrimination for no AF-FT required. When the lenses issue is better met.

The IR interview seemed to suggest the issue is larger AF pixels can be used on a dedicated PDAF DSLR. Not sure I understand why OSPDAF systems can't just use more pixels to match the pixel area that DSLRs are using for AF.

Direct link | Posted on Jun 22, 2015 at 16:22 UTC
On Panasonic Lumix DMC-CM1 camera review post (246 comments in total)
In reply to:

Michael Ma: When a phone can offer shallow DOF, I think I'll consider one. It doesn't really offer much more than a Note 4 which is sharper at the edges in bright light. I'd like to see it compared to a LG G4.

Are you seriously arguing a 1" sensor won't mean shallower DOF than the 1/2.6" sensor of Note 4?

Direct link | Posted on Jun 22, 2015 at 15:05 UTC
In reply to:

Ted Williamson: It seems more of a stop gap than anything else. Later this year Apple will have a new iphone with the super quality sensor that they acquired from LinX:

http://www.wsj.com/articles/apple-buys-israeli-camera-technology-company-linx-1429037790

If it were less expensive, I'd consider getting one, but it seems overpriced.

The camera makers themselves are constantly filing new patents on innovative technologies. Few of these make it to market. Doesn't mean it can be sold at a price point and in sufficient volume to justify mass production.

NASA built a revolutionary 2450mm lens that made astrophotography obsolete, and yet Nikon now sells astrophotography bodies. Why? That lens is now $33.5K used. http://www.dpreview.com/articles/7618079374/massive-33-500-2450mm-f-8-nasa-lens-surfaces-on-ebay

Direct link | Posted on Jun 21, 2015 at 16:39 UTC
Total: 105, showing: 1 – 20
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