falconeyes

falconeyes

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

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Total: 984, showing: 41 – 60
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If you sacrifice an entire news article based on a Google-translated statement to the press, why not have it properly translated first?

Professional translations for communications purposes are available online for 0.06$ a word, or $20 for the article within a couple hours. Japanese ncluded. Cheaper than letting your staff write this opinion. The news is old enough. As you wrote in your piece: DPR, why?

Moreover, the most discussed bit from the article are the 2-3 years arrival time for Nikon mirrorless after an event difficult to understand from the Google translation.

Link | Posted on Feb 28, 2017 at 10:28 UTC as 137th comment | 5 replies
In reply to:

Mike FL: I bought Kodak V705 10 years ago, and V705 is more less as same as this OPPO.

Yes, the 2006 V570 and 2007 V705 are a dual periscope lens 23 mm fixed, 39-117 zoom, total 5x zoom camera. f2.8 - f4.4.
But with its 20mm compact camera design it is 3x as thick as a smart phone and uses larger lens apertures.

Link | Posted on Feb 28, 2017 at 07:24 UTC

Exact same price as a 13" 16GB i7 MBP.

Porsche Design makes all kind of designs, from fashion to electronics. In many cases as the paid design studio. It only is loosely cnnected to Porsche, the car maker. By its founder F.A.Porsche who previously designed the 1972 Porsche 911. More recently, Porsche aquired Porsche Design though.

I like Porsche Desgn products, the label is well known in Germany. Sometimes, it is a bit on the expensive side though. What I don't like is that their products are sort of a one at a time shots. I don't expect a follow-up model to this. Also, expect service requests to be forwarded to Quanta.

Link | Posted on Feb 28, 2017 at 06:09 UTC as 40th comment
On article OPPO to announce 5x zoom smartphone technology at MWC (65 comments in total)

Seems I was wrong
-> https://mobile.twitter.com/jmcomms/status/836147779416240128
Looks like a periscope-style optical 5x zoom
Awaiting Oppo PC at 14:00 local Barcelona time.

Link | Posted on Feb 27, 2017 at 10:22 UTC as 1st comment | 1 reply
On article LG G6 comes with dual-cam and 18:9 FullVision display (69 comments in total)

This isn't a 18:9 screen, it rather is a 16:8 screen! REALLY ;)

Link | Posted on Feb 27, 2017 at 09:09 UTC as 9th comment | 2 replies
On article OPPO to announce 5x zoom smartphone technology at MWC (65 comments in total)
In reply to:

falconeyes: An advert from Oppo leaked
-> https://www.gizmochina.com/2017/02/25/oppo-5x-camera-technology-set-dual-cameras-5x-lossless-zoom/
A loose translation of the advert mentions dual cameras with 5x lossless zoom.

Therefore, it will be something similiar to iPhone 7+, maybe with a higher optical zoom factor and/or higher pixel count for the tele camera.

The weak point for the Oppo approach of course will be:
To keep the 74mm lens flat, it will have a small aperture. Add to it that it will be cropped further 1.62x to reach at 5x overall, you'll see that the remaining equivalent aperture will be tiny. It risks to fall beyond the diffraction limit.

The longer lens on the Apple iPhone 7+ has f/2.8 (rather than f/1.8). Assuming the Oppo uses f/3.5 and a 7.6x crop sensor, the remaining equivalent aperture at 5x would be f/43. The diffraction limit for f/43 is 4MP. Therefore, I already deduced a high probability that the forthcoming Oppo claim will be a false claim. And the reason why Apple sticked at 2x.

Link | Posted on Feb 26, 2017 at 16:37 UTC
On article OPPO to announce 5x zoom smartphone technology at MWC (65 comments in total)
In reply to:

falconeyes: An advert from Oppo leaked
-> https://www.gizmochina.com/2017/02/25/oppo-5x-camera-technology-set-dual-cameras-5x-lossless-zoom/
A loose translation of the advert mentions dual cameras with 5x lossless zoom.

Therefore, it will be something similiar to iPhone 7+, maybe with a higher optical zoom factor and/or higher pixel count for the tele camera.

Let me combine that with a short back-of-the-envelelope computation:

Assume dual camera, with second camera having 3.08x the focal length. Second, assume first camera to be 8MP, second camera to be 21MP (rumored #pixels of new Oppo Find 9 smartphone). This allows for an exact 8MP digital image at 5x zoom, relative to the first camera.

Therefore, this is my educated guess for tommorows announcement:

- Dual camera, 24mm and 74mm FL.
- Dual camera, 8MP and 21MP resp.
- Smooth 5x zoom from 24mm to 120mm with 8MP, via firmware.

Less likely variant:
- Smooth 5x zoom from 28mm to 140mm, using 28mm and 86mm lenses.

Remember, you heard it here first ;)
Moreover, it was my immediate reaction of what Apple could have done with their dual camera approach out of the box. I was surprised they didn't eat that easy cake.

Link | Posted on Feb 26, 2017 at 16:27 UTC
On article OPPO to announce 5x zoom smartphone technology at MWC (65 comments in total)

An advert from Oppo leaked
-> https://www.gizmochina.com/2017/02/25/oppo-5x-camera-technology-set-dual-cameras-5x-lossless-zoom/
A loose translation of the advert mentions dual cameras with 5x lossless zoom.

Therefore, it will be something similiar to iPhone 7+, maybe with a higher optical zoom factor and/or higher pixel count for the tele camera.

Link | Posted on Feb 26, 2017 at 16:05 UTC as 2nd comment | 2 replies
In reply to:

upptick: So, the main reason I believe there is a God is because humans are able to devise machines and instruments that are far, FAR more complicated than what would be needed for mere survival --- Darwin would say that there is simply no selective / competitive pressure and therefore no survival advantage to create anything nearly as complicated as this Sony lens. Yet, here it is. What an exquisite beauty!

I heard Trilobites left our universe because being dissatisfied with god in this one. But then, a few couldn't resist hold a Leica and were forced to come back ...

Link | Posted on Feb 26, 2017 at 09:33 UTC
In reply to:

Tequila MockingjayBird: and now we all know how ants march, and birds fly. Impressive work by the original creator.

I assume this was preprogrammed flight paths and GPS. No swarm intelligence.

Link | Posted on Feb 26, 2017 at 08:33 UTC
In reply to:

upptick: So, the main reason I believe there is a God is because humans are able to devise machines and instruments that are far, FAR more complicated than what would be needed for mere survival --- Darwin would say that there is simply no selective / competitive pressure and therefore no survival advantage to create anything nearly as complicated as this Sony lens. Yet, here it is. What an exquisite beauty!

Evolution isn't about survival, it is about competition, i.e., about expansion and dominance. And technology is one means of a heck to dominate, for sure. Can't imagine how anybody could not see how evolution leads to technology. BTW, it emerged when mankind would almost disappear. Human the tool maker saved our asses. And not surprisingly, most people today wouldn't survive w/o technology.
And if you are amazed at this Sony lens, then have a look at a CERN detector ...

Link | Posted on Feb 25, 2017 at 23:55 UTC
In reply to:

Thermidor: I've never worked with medium format before. Just wondering, aside from depth of field, how does it change things for someone shooting APS-C or full frame, and what are the drawbacks of the format (aside from camera bulk and cost)? Besides portraiture, product/architecture and landscape, what other forms of photography would benefit from the jump to medium format?

MF vs. FF makes a difference with cameras featuring an OVF. Manual focus and the overall experience is significantly improved.

However, with a mirrorless, MF won't feel any different from FF. And with the 0.8x crop which is close to FF's 1.0x crop, image quality won't differ much too. Actually because of lens choice, FF will be ahead in shallow depth of field and a D810 with its native ISO 64 will be silightly ahead in clean images over this Fuji.

The biggest promise of mirrorless MF is the technical feasibility to create stunning glass at a more affordable price than FF. But with lens prices announced by Fuji, this promise won't become realized.

Link | Posted on Feb 24, 2017 at 15:03 UTC
In reply to:

Robert Soderlund: Don't we humans have predator vision with our eyes facing forward? Just look at horses and deer, they got their eyes on the sides.

Humans are predators. Ask our prey.

Link | Posted on Feb 23, 2017 at 09:00 UTC
In reply to:

Sdaniella: this is an old idea to have higher density pixels in the center and lower density progressively outwards to the periphery.

i don't know how many others have thought of this for a digital camera sensor
but i myself have mentioned it many years ago here on dpr.

my idea was way ahead for tech of the time

only 3-d printer tech of today seems to be what makes multi-variant pixel size types more feasible on a single image sensor now.

As I said, you didn't get the idea.

Link | Posted on Feb 23, 2017 at 08:58 UTC
In reply to:

Sdaniella: this is an old idea to have higher density pixels in the center and lower density progressively outwards to the periphery.

i don't know how many others have thought of this for a digital camera sensor
but i myself have mentioned it many years ago here on dpr.

my idea was way ahead for tech of the time

only 3-d printer tech of today seems to be what makes multi-variant pixel size types more feasible on a single image sensor now.

I think you didn't get the idea.
This isn't about a varying pixel size sensor.
It is about a lens array with varying focal length lenses.
Exactly the same the iPhone 7+ does, only smaller and entirely 3D-printed optics.

The result is a camera as small as a grain of dust. Where the software-stitched image is less pixelated in the center (because oh boy, pixelated it is ;) )

Link | Posted on Feb 23, 2017 at 01:40 UTC
On article Leica SL Review (1079 comments in total)

In this $5k+ territory of professional all-round cameras, I only see Canon, Nikon and Leica competing. And it is interesting to see that Leica, already now built its bridge head in professional mirrorless territory with the SL.

The SL won't beat yet the best of DSLRs. But it is a surprsingly good starting position in the race to come. Leica dropped out of the SLR race. Maybe not this time. After all, Leica has a heritage in professional photography.

Link | Posted on Feb 22, 2017 at 18:25 UTC as 150th comment | 3 replies

From the same artist, I think this movie would deserve a news spot here on DPR too: https://vimeo.com/189004719

Link | Posted on Feb 22, 2017 at 11:37 UTC as 33rd comment | 2 replies

To help understand the article:

The Indiegogo campaign was for solidLuuv, the Luuv Action Gimbal actually is this:
http://www.feiyu-tech.com/index.php/Product/detail/pr_id/50.html

The combination of both into an ultraLuuv is nice although a bit expensive. And as usual, DPR quoted the US price wrong as intern'l buyers outside EU won't pay VAT. I.e., the US price is 19% less than quoted.

Link | Posted on Feb 22, 2017 at 11:22 UTC as 13th comment | 1 reply
In reply to:

falconeyes: It should be noted that this isn't entirely retro-driven.

E.g., the Adox CMS 20 II B&W film ( http://www.adox.de/Photo/adox-films-2/cms-20-ii-adotech-ii ) resolves closer to 500MP with a capable full frame lens and does still beat any digital FF out there (in terms of resolution).

It is a bit expensive but I gave it a try a couple of years ago. I had to inspect the test charts under a microscope because no scanner could resolve this much detail (20,000 dpi). And I was blown away by what I saw (400 lp/mm). I could literally wander around in detail within an area otherwise covered by a single digital 12MP pixel.

I initially used the Adox film to benchmark a lens I was testing beyond the limits of the ordinary MTF test. And I was surprised by the result which includes the tolerance of film wrt minor focus errors (because film has a thickness).

At the time, I sent the film back to Adox for development. As for possible lens resolutions, Zeiss reported before Otus their lenses can resolve up to 300-400 lp/mm (5% MTF). I used a Zeiss lens at F/4 and inspected the center. I can confirm that claim. It means the lens was diffraction-limited in the center at F/4. Otus will be better, probably peaking at F/2.8 already.

As for comparing to digital MP values. It isn't as misleading as many think. The film resolution figures are typically based on 5% MTF. This is a practical number as images can be easily capture-sharpened. Digital resolutions are typically based on 50% MTF but with some sharpening applied. Personally, I advocate to base lens resolution on 20% MTF figures.

Link | Posted on Feb 22, 2017 at 01:33 UTC

It should be noted that this isn't entirely retro-driven.

E.g., the Adox CMS 20 II B&W film ( http://www.adox.de/Photo/adox-films-2/cms-20-ii-adotech-ii ) resolves closer to 500MP with a capable full frame lens and does still beat any digital FF out there (in terms of resolution).

It is a bit expensive but I gave it a try a couple of years ago. I had to inspect the test charts under a microscope because no scanner could resolve this much detail (20,000 dpi). And I was blown away by what I saw (400 lp/mm). I could literally wander around in detail within an area otherwise covered by a single digital 12MP pixel.

Link | Posted on Feb 21, 2017 at 23:50 UTC as 13th comment | 16 replies
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