Lives in Germany Germany
Has a website at falklumo.blogspot.com
Joined on Apr 28, 2008


Total: 763, showing: 1 – 20
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In reply to:

falconeyes: Can anybody here comment how accurate was the first version of their light meter?

Thank you, Jay and Silvo.

Link | Posted on Oct 25, 2016 at 23:33 UTC
On article Ballot-selfies are now legal in New Hampshire (49 comments in total)

Rather than punishing selfies, it would be much better to educate people to stay silent, or lie, on the question on who they voted for.

After all, the vote is free only if free from pressure from the social community you are living in. Worst would be a culture where you are expected to post your vote on FB.

Link | Posted on Oct 24, 2016 at 09:52 UTC as 1st comment

This is good news.
First, the margins are pretty standard, after all, the smartphone is more software than hardware and software is what created the smartphone and killed Nokia and Microsoft in that market.
Then, 20$ per camera module mean that 3x3 camera arrays have become an economically viable option. Still 180$ per array, but feasible for, say a Plus model. The competition for smartphone camera modules also is what made multi module cameras like the 36-camera Panono a reality.

Eventually, let's note that more money doesn't really buy better camera modules as the slim form factor dictates lens aperture and possible sensor size.

Link | Posted on Oct 24, 2016 at 09:29 UTC as 3rd comment

I read a lot of criticism about this lens and its price point.
However, if rumors about it being really sharp are true, it may be the only TS lens which really does make sense. Because a pano head and software stitching yields very high rez architectural results, using lower rez TS lenses might fall short in competitivity.

Link | Posted on Oct 19, 2016 at 23:33 UTC as 5th comment | 1 reply
In reply to:

Dr_Jon: So they are scaling 5,472 to 4k (well 3840 across, 4096 isn't present, which is fine for pretty much everybody I assume), how does that work for aliasing and moire, as their previous efforts at small amounts of down-scaling haven't been great?


@Dr_Jon, you may be confusing things here.
Downsampling (if supersampling) helps with moiré, rather than what you seem to assume. The A7s you linked to doesn't do downsampling 4k. But it is already better with its full sensor readout than line skipping cameras like many DSLRs.

EDIT Your a6300 link is misleading too. The aliasing 4k sample chart does look pretty good, just not perfect. And the a6300 may not do any supersampling at all, so your comment may not even be applicable. Did you check any facts before posting?

Link | Posted on Oct 18, 2016 at 10:45 UTC
In reply to:

Mutovkin: Stabilization is a major weak point of the camera it seems. Would love to see it compared against 1" cameras from Canon, Panasonic side by side (i.e. on the same mount) while walking.

I don't think this can be concluded from the video. The camera was shaken too much to give stabilization a chance. The opening sequence looks pretty stable though (handheld too).

Link | Posted on Oct 18, 2016 at 10:27 UTC
In reply to:

Max Iso: Here's the weakness i see, the AF tracking (at least in video). When the last shot used face tracking and when you guys used single point on Sam's face, it was the same both times. It starts in focus, then the camera is moved towards or away and the camera doesn't get the face back in focus till the movement stops.

You could almost get the same results just using S-AF at the beginning and then after movement stops at the end. There wasn't anything "continuous" about it. I know it's harder to do in video but we have seen how many generations of OSPDAF? Canon is on their 2nd gen of DPAF and they do much better at actual continuous tracking for video.

Maybe not a deal breaker for people who want this cam but C-AF in video just isn't there yet in anybody but Canon. Reason i bring this up is i assume DPR are implying it's good and i just didn't see that.

@Max Iso
Thank You for your observation and comment.
It is a valid comment as it compares technologies in wide-spread use. PDAF sensors are in phones now, as is Dual Pixel AF (Galaxy S7). DPAF was first shown by Canon, but the corresponding patent is a joke and won't stop Sony if they only liked. Yes, Sony has to amp up their AF game if they want to stay competitive in the AF area.

Link | Posted on Oct 18, 2016 at 10:25 UTC
In reply to:

scastle: Interesting. If you go to their website and plow through the menus, you'll see they also have a Canon 700D that has been modified this way. And there's something a bit curious: the sensitivity graphs they have for the two cameras are exactly the same. It makes me wonder if the graphs were just made up.

The "sensitivity graph" is a filter transmission graph. Assuming they use the same IR replacement filter material, both graphs should indeed be the same. The transmission curve of the original filter is very similiar too, but not identical.

Link | Posted on Oct 14, 2016 at 13:57 UTC
In reply to:

vscd: I'm still interested in an article about warming up sensors and the impact on the sensornoise. Back in the good old days shooting in live view was always said to be less recommended because the sensor heats up. Nowadays the mirrorlessbunch runs the sensor for hours until the photo was taken and no one seems to care. Are the problems solved or just kept quiet?

I recommend Brendan Davey's gorgeous resource:

It should be read as an extra metrics complementing the DxOmark rating of any sensor.

Link | Posted on Oct 14, 2016 at 13:52 UTC
In reply to:

JEROME NOLAS: Isn't a bag of ice cheaper?

Not in Italy. They make very good ice!

Link | Posted on Oct 14, 2016 at 13:47 UTC
In reply to:

gehairing: Maybe i've missed something ?
It's the same price as an entry level dedicated astro CCD wich is much easier to use. Better sensitivity, no mirror, smaller, T2 treading etc...

A dedicated astro CCD in the $2000+ range uses a sensor like the Truesense KAF 8300 CCD. It is slightly smaller and has 8MP. More importantly, as known from medium format cameras, such sensors have much worse dynamic range properties than state of the art CMOS with column-parallel ADCs (the KAH 8300 has a readout noise of 16 e-). Therefore, IMHO it makes a lot of sense to adapt a state-of-the-art system camera and the D5500 is relatively low price.

Link | Posted on Oct 14, 2016 at 13:45 UTC
In reply to:

Polacofede: Doesn't a Pentax K3II offer better astrophotography capabilities with the astrotracer? It might allow for 900seconds but without a way to trace is useless.
Also I wonder how much can the sensor heat to have an impact on the IQ coz if then I might add some ice under my K3II. LOL

This is for serious astro photographers with motorized tracking mounts. Which is why the D5500A also has a modified IR filter and an anti-dewing feature.

The Pentax astro tracer is nice for what it is, esp. for long exposure at wider field of view. But it lacks the required accuracy of an astro mount for serious astrophotography at long focal lengths.

Sensors create a noise called dark current which drastically increases with temperature and is linear to exposure time (hence the term current). Cameras perform differently here, cf. the stunning resource http://www.brendandaveyphotography.com/?page_id=726 by Brandan Davy. The D5500 is missing from the list, but Pentax K-5 and Nikon D7000 are good APSC performers. I suspect the D5500 was selected for being among the best too.

Link | Posted on Oct 14, 2016 at 13:25 UTC

The DPR price quoted in USD is wrong!

The D5500A is 1795.08 € (w/o TAX) or US$ 1976.16. Any US buyer wouldn't need to pay EU VAT taxes.

Link | Posted on Oct 14, 2016 at 13:19 UTC as 26th comment
In reply to:

goldenstandard: This is really interesting. From what I can tel, this isn't a patented technology, so hopefully this will become standard smartphone tech moving forward...
Also, the gray-scale g that's close to the center of the graphic is just a mistake, right?

The pattern is from a related article and seems accurate as is. The actual pattern of the IMX378 was not disclosed by Sony.

The pattern repeats every 4x4 sensels. Each 4x4 block consists of 2x2 Bayer RGGB blocks with varying average sensitivity. The average Bayer block sensitivity is 87%, 67%, 37%, 67%. One could call it RGGB-WGBG pattern. The detail Bayer blocks are such that each color receives light at 25%, 50%, 75%, 100% sensitivity once (RB) or twice (G). Therefore, I think the pattern is depicted correctly.

Link | Posted on Oct 13, 2016 at 11:56 UTC
On article BenQ announces 32" 4K high dynamic range monitor (81 comments in total)
In reply to:

kanega: The SW320 was already on display at the recent Photokina.
Impressive display!
They demonstrated the HDR mode with a clip of 'Life of Pi', gorgeous blacks and highlights, depth.
Price they told me was 1399€.
Will def. get one!

I very much appreciate your info. thanks!

Link | Posted on Oct 12, 2016 at 01:17 UTC
In reply to:

Henry Alekna Photography: Looks nice enough but I think I will still be better off assembling my own using a laptop hard drive.

Incidentally, why do they bother making a Mac version? I use a couple of Toshiba external drives which are supposedly for windows, formatted in disk utility and they now work great!.

Well, the Mac version is the black Windows version, same price. Only difference is that it is preformatted HFS+ rather than NTFS. The tools are both Windows and Mac anyway.

Why WD does it? I guess to be displayed in Apple Stores. Preformatted with HFS results in an easy user experience: Plug the drive and the time machine prompt will ask wether to use it as back-up drive. A simple ok is all what is needed to configure. Apple wouldn't stock NTFS-formatted drives, I guess ...

Originally, the difference was in hardware too, with the Mac version sporting a Firewire port.

Link | Posted on Oct 11, 2016 at 23:53 UTC
On article Hands-on with the Sony Cyber-shot RX100 V (232 comments in total)
In reply to:

StrokerAce23: Sony may as well just become a daily deal site with how fast they release products.

"Mark V looks good, but I'll wait till Thursday for the Mark VIIII."

no new tune?
Anyway, Sony managed to keep ahead of the pack during all those releases, and considerably so. And how many cameras can shoot 24fps RAW at full res? And what do they cost?

Link | Posted on Oct 8, 2016 at 21:06 UTC
On article Hands-on with the Sony Cyber-shot RX100 V (232 comments in total)
In reply to:

rpm40: ...and still no touch screen? Come on Sony. Next time wait until you have enough to make the upgrade worthwhile. Their lineup is starting to look like the new iPhone cycle.

Yeah, the omission of touch screen is a bit strange ... considering the sibling release a6500 now has a decent touch screen with touch AF.

Link | Posted on Oct 8, 2016 at 21:02 UTC
On article Hands-on with the Sony Cyber-shot RX100 V (232 comments in total)
In reply to:

Free_man: I can't wait until Sony updates the RX10 with the new sensor that has phase detection AF.
I've owned a RX10 and a RX10 II and have had allot issues with the contrast detect AF in low light or fast moving subjects in the past.

These phase AF sensels typically won't help in low light,
However, the added horse power may bring better, faster AF algorithms, who knows?

Link | Posted on Oct 8, 2016 at 20:58 UTC
On article Nikon 105mm F1.4E ED sample images (278 comments in total)

105/1.4E vs. 85/1.4Art. Somebody has to try both lenses side by side ;)

Link | Posted on Sep 29, 2016 at 17:10 UTC as 46th comment | 2 replies
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