Prognathous

Lives in Israel Israel
Joined on Nov 24, 2003

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Total: 265, showing: 1 – 20
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On article Sony warns against use of unauthorized third-party apps (183 comments in total)
In reply to:

Prognathous: Hacked firmware versions are indeed something I would expect Sony to want to prevent, and rightfully so. Blocking third party apps on the other hand, is simply inane. It's similar to Apple or Google blocking third party apps for their phones and tablets, except of course that Sony does not provide an SDK. This btw is a huge blown opportunity to leave the competition behind. Instead of blocking apps, Sony should do everything it can to encourage developers to write apps for its cameras.

Some ideas:
- Focus bracketing app for macro stacking
- Soft focus mode using multiple exposures using different aperture values (like Minolta 7 STF mode)
- Soft focus mode changing the focus for half an exposure (like Minolta Fantasy effect card)
- 16 stop dynamic range using double exposure (one correct exposure, and another with +4 overexposure, later to be merged in pp)
- Multi-spot metering with highlight and shadow bias
- Intervalometer
- Pre-programmed focus pull distances for video

etc...

Third party firmware would have too low level access compared to a SDK. Unintentional or intentional damage to the camera is much more feasible when you have complete control over it and not only on what Sony allowed you to access.

Link | Posted on Jun 22, 2016 at 05:41 UTC
On article Sony warns against use of unauthorized third-party apps (183 comments in total)

Hacked firmware versions are indeed something I would expect Sony to want to prevent, and rightfully so. Blocking third party apps on the other hand, is simply inane. It's similar to Apple or Google blocking third party apps for their phones and tablets, except of course that Sony does not provide an SDK. This btw is a huge blown opportunity to leave the competition behind. Instead of blocking apps, Sony should do everything it can to encourage developers to write apps for its cameras.

Some ideas:
- Focus bracketing app for macro stacking
- Soft focus mode using multiple exposures using different aperture values (like Minolta 7 STF mode)
- Soft focus mode changing the focus for half an exposure (like Minolta Fantasy effect card)
- 16 stop dynamic range using double exposure (one correct exposure, and another with +4 overexposure, later to be merged in pp)
- Multi-spot metering with highlight and shadow bias
- Intervalometer
- Pre-programmed focus pull distances for video

etc...

Link | Posted on Jun 21, 2016 at 21:31 UTC as 36th comment | 4 replies
On article Hasselblad to announce 'game changer' next week (457 comments in total)

How about a rebadged Sony mirrorless body, but this time augmented with some Hasselblad features that are actually useful and missing on the Sony side, for example Pixel Shift:

http://www.dpreview.com/articles/4410648565/hasselblad-unveils-pixel-shifting-200mp-h5d-200c-ms

Link | Posted on Jun 17, 2016 at 23:52 UTC as 164th comment | 1 reply
In reply to:

Nexus Seven: Cool little camera with nice lens selection.
5 axis IBIS should make up the .7 stop difference between apsc and for video it is priceless.

Stabilization is not an exact replacement for cleaner high ISO and is also available in many APS-C cameras and lenses.

With that said, it's nice that Panasonic isn't as stubborn as Nikon and Canon and is willing to add IBIS to its cameras even when it has an established stabilized lens lineup. The big two fear of cannibalization will eventually come back to bite them in the posterior. When they'll finally figure out that mirrorless and IBIS are the way to go, it will be too late and they'll already lose a significant market share.

Link | Posted on Jun 14, 2016 at 18:07 UTC
On article 2016 Roundup: Semi-Pro Interchangeable Lens Cameras (261 comments in total)
In reply to:

Greg VdB: While I enjoy the roundup itself (I have no qualms with the a7R II coming out on top), the title once again is poorly chosen. So this is the 2000 dollar plus category? Ok, name it as such then in the title, in line with the previous roundups. By saying "Semi-Pro Interchangeable Lens Cameras" instead, you imply two things:
(1) cheaper cameras, like the K-1, the 7DII, and the D500, are not even of semi-professional level;
(2) only the astronomically expensive ones (e.g. 1DxII, D5, 645Z) are truly professional.
No wonder this rubs people the wrong way.

@Thematic, what is clear is that you didn't read Greg's post, because you completely ignored the points he is making.

Link | Posted on Jun 14, 2016 at 06:44 UTC
On article 2016 Roundup: Semi-Pro Interchangeable Lens Cameras (261 comments in total)

Silly category.

Link | Posted on Jun 13, 2016 at 14:15 UTC as 64th comment
On article 2016 Roundup: $1200-2000 ILCs part 1 - Crop-Sensor (180 comments in total)
In reply to:

SimenO1: Who made up that silly category? If I had 1200-2000 $ to spend on a camera, it certainly would not be an APS-C or even worse, a (m)FT camera. I don't see any good reason to leave out the FF models in the same price range.

Pentax top APS-C model packs a punch, but it gets disqualified because its too tough on pricing? That is just as silly. Come on, we expect better then articles like this!

@BlueBomberTurbo - What extra reach? A 36 MP Pentax K-1 doesn't have any less reach than 16MP cameras like the Fujifilm X-T1 and Leica T (which both made it to this comparison).

Link | Posted on Jun 9, 2016 at 15:35 UTC
In reply to:

Toni Salmonelli: One more example for the great value photographers can get for her money nowadays. This fact sheet would absutely considered "pro" not even ten years ago.Have fun Pentaxians! :-)

Except for the battery life, you are pretty much correct. All the features and many more, far better image quality, half the weight, 1/6th of the price:

http://www.dpreview.com/products/compare/side-by-side?products=pentax_k70&products=nikon_d2xs

How far things have progressed...

Link | Posted on Jun 9, 2016 at 10:08 UTC

With Pixel Shift, this $650 body delivers better image quality than any other camera not having a full-frame sensor (and on par with Pentax own K-3 II). This includes the D200, D7200, 7D II, 80D and anything Olympus and Panasonic offer.

And before anyone complains about image movement making Pixel Shift unsuitable, just consider (1) that not all subjects have movement, and (2) even if movement is an issue, it's easy to overcome this in post processing using a single image from the series in one layer and the pixel shifted (merged) image in another.

Link | Posted on Jun 9, 2016 at 06:15 UTC as 61st comment
In reply to:

Prognathous: Any information about the number of AF points on the main sensor?

No. The 11 points are in the AF module. The camera also claims to have Hybrid AF with AF points on the main imaging sensor, but there's no mention of how many. It wouldn't make much sense for this to also be limited to 11, as sensor manufacturer don't make any APS-C sensors with 11 PDAF points.

Link | Posted on Jun 9, 2016 at 00:01 UTC

Any information about the number of AF points on the main sensor?

Link | Posted on Jun 8, 2016 at 23:54 UTC as 86th comment | 4 replies
On article 2016 Roundup: $1200-2000 ILCs part 1 - Crop-Sensor (180 comments in total)
In reply to:

Polacofede: in that range you can have the pentax K1, and for way less the K3, K3II...

@Rishi - in terms of image quality and AF-C, the K-3 offers a package that none of the FourThirds cameras you included here can match. It's odd that you left it out, but I guess the real reason was that it's priced *too low*. Funny reason.

Link | Posted on Jun 8, 2016 at 20:41 UTC
On article Pentax K-1 Pixel Shift Resolution: Updated Field Test (210 comments in total)
In reply to:

Sdaniella: motion correction mode limitations ... American flags waving atop buildings in the wind are obliterated to unrecognizable shredded digital artifacts (two can be easily seen set against the bright sky) ... ditto: anything that moves more than the width/height of a pixel ...

This is easy to solve with layers - just paint in the flag from a non-pixel shift layer.

Now, care to explain how you get the level of detail the rest of the image has with a camera that doesn't have pixel-shift?

Link | Posted on Jun 5, 2016 at 08:31 UTC
On article Pentax K-1 Pixel Shift: An update (96 comments in total)
In reply to:

tar4heel2: ARRRGGHHH!! Make the RAW file available and let me run it through Capture One and DxO. I'll give you the run down on these files in 30 minutes.

The pictures were taken without an ND filter at f/16~f/20, so not something you'd be able to do much with, regardless of RAW conversion tool. Everything is soft and lacking details due to diffraction, even stationary objects like tree trunks.

Link | Posted on Jun 2, 2016 at 07:38 UTC
On article Pentax K-1 Pixel Shift: An update (96 comments in total)
In reply to:

steelski: Thank you for this. Its much appreciated.
You might want to also consider the F16 setting used. Although its common in landscapes, its really hitting the defraction limit on a standard 2.8 Zoom.

ND filter to the rescue! :-)

Link | Posted on Jun 1, 2016 at 21:56 UTC
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)
In reply to:

duartix: Can the camera bracket a Pixel Shifted image and a regular exposure?
If so you could take great benefit from both in post.
BTW, Olympus's High Resolution Mode doesn't suffer from so much artifacting either because they have figures it out much better or because their 8 stacked images are doing half pixel shifts, which theoretically is above Nyquist.

If by "artifacts" you are referring to the green blotches, they are only visible in conversion done using ACR/Lightroom, they don't have anything to do with how the K-1 performs Pixel Shift.

Link | Posted on May 31, 2016 at 22:56 UTC
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)

The question is - should the ineffective motion-correction in JPEG be of consideration to those who shoot RAW and are willing to "paint out" areas of motion or "paint in" areas of no motion in post processing (using layers)? It's straightforward enough, and when printing large should be well worth the effort, definitely for paid work.

Link | Posted on May 31, 2016 at 21:07 UTC as 87th comment
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)
In reply to:

steelski: Please oh please try the files in the Pentax software, Update it first to the latest version.
As others have said, The Camera Store tested it and it coped better.

To get a wider aperture an achieve the smooth stream effect they could have used an ND filter, or possibly the K-1 multi-exposure composite mode (if it works in tandem with Pixel Shift).

Link | Posted on May 31, 2016 at 21:00 UTC
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)
In reply to:

martink3S04: Interestingly enough, Olympus's EM5 Mk II has a clever solution to this issue: Along with saving a high resolution file, it saves a standard resolution frame from the eight that it takes. If you are willing to up sample it, you can paste the high resolution file as a layer in Photoshop, then simply erase out any of the blurred sections to reveal the lower resolution, but cleaner, sections below. Obviously not an ideal solution, but especially for moving water it works very well.

Or the other way around - use 1 shot for the entire picture, then "paint" static objects of interest to reveal the pixel shift layer.

Link | Posted on May 31, 2016 at 20:30 UTC
On article Looking Sharp: A focus stacking tutorial (220 comments in total)
In reply to:

ChaosCloud: One of the reasons I prefer small sensor (up to 1") fixed-lens cameras - very easy to get the whole scene in sharp focus in one shot. If I want a really high quality photo I will take 3-6 shots with some overlap at the edges and then stitch them together into 1 image later.

@cdembrey - practical experience of course. Anyone who ever shot macro would know that stopping all the way down will get you the largest DOF (which still isn't sufficient in some cases), but at the expense of sharpness and contrast. Focus stacking bypasses this problem.

Link | Posted on May 29, 2016 at 19:29 UTC
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