noirdesir

Lives in Switzerland Switzerland
Works as a Engineer
Joined on Nov 4, 2006

Comments

Total: 597, showing: 1 – 20
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In reply to:

thx1138: 99.9% of people have no interest in medium format and yet voted it the most exciting thing at Photokina. Danger Will Robinson, does not compute.

The D3x was $8000 (not $9000).

Link | Posted on Sep 26, 2016 at 14:40 UTC
In reply to:

Achiron: "alongside the new dual quad core TruePic VIII Image Processor with four CPU cores and four image processing cores that achieve image processing speeds approximately 3.5 times faster than the TruePic VII Processor."

I'm not sure what Olympus meant in their releases and I'm not sure I'm getting to the bottom of this sentence - Does it mean that actually it is akin to a BIGlittle octa core? or it's an SoC with 2 cpus, each oh them has 4 physical cores, (in arm I suppose), and there is gpu with "just" 4 cores?

I asked on m43 forums, but reply here will get more exposure - does anyone got reliable information regarding how our cameras work in hardware level? what SoC does the D5 uses? Is the buffer a DDR3? 4? clocking? I effectively got an incredible machine near me, my Olympus pen. It can record MOV and encode it at 24mbps, and write it, and provide live view and FW that allows me to rotate knobs in video without interrupting - yet I got no clue what's really under the good.

Do you?

There is no BIGlittle here. Just two separate plain-old quadcore ARM processors. Whether they are on one SOC or on two separate SOCs is not clear.

Link | Posted on Sep 26, 2016 at 14:04 UTC
In reply to:

thx1138: 99.9% of people have no interest in medium format and yet voted it the most exciting thing at Photokina. Danger Will Robinson, does not compute.

The most exciting cars are usually those affordable by only a few.

Link | Posted on Sep 26, 2016 at 14:01 UTC
On article Photokina 2016: Olympus E-M1 Mark II overview video (242 comments in total)
In reply to:

noirdesir: I really would have liked an answer to the question of whether the on-sensor PDAF now also works with m43 lenses (on the Mark I it was limited to 4/3 lenses). I would suppose it now is also used with m43 lenses, but a confirmation would be nice.

I guess I am not a fan of the non-nested comments here.

Link | Posted on Sep 25, 2016 at 23:41 UTC
On article Photokina 2016: Olympus E-M1 Mark II overview video (242 comments in total)
In reply to:

noirdesir: I really would have liked an answer to the question of whether the on-sensor PDAF now also works with m43 lenses (on the Mark I it was limited to 4/3 lenses). I would suppose it now is also used with m43 lenses, but a confirmation would be nice.

I didn't claim that "4/3 was limited to only working with PDAF". I claimed the inverse, that "PDAF was only used with 4/3 lenses" (which I later corrected in that PDAF was also used with m43 lenses in continuous AF).

Link | Posted on Sep 23, 2016 at 23:10 UTC
On article Teardown reveals Sony image sensors in iPhone 7 (131 comments in total)
In reply to:

rfsIII: If Sony is the Kodak of image sensor makers (because they seem to produce the majority) then who is the Agfa? Or the Fuji or the GAF or the Ilford or the Bergger or the Adox?
Why do I care? I'd like to be able to pick my phone based on sensor characteristics, rather than brand. Apple phones make nice images and all, but they feel a little too nice...

Sony dominates image sensors for sensors with a 1" and up size. Below that there are many players but not two such dominant ones as Kodak and Fuji were in the film days. In alphabetical order: Canon, CMOSIS, e2v technologies Inc. (U.K.), GalaxyCore Inc. (China), OmniVision technologies Inc. (U.S.), ON Semiconductor Corporation (U.S.), Panasonic Corporation (Japan), Samsung Electronics Co. Ltd. (South Korea), Sharp Corporation (Japan), SK Hynix Inc. (South Korea), Teledyne Technologies, Inc. (U.S.).

According to this recent article, Sony has 35% market share by value in the CMOS arena, with Samsung coming second with 19% (http://www.electronics-eetimes.com/news/st-falls-image-sensor-vendor-ranking-sony). Note that is by value. Since Sony dominates the more expensive larger sensors, by units, its marketshare is lower.

If you want to look for an Agfa, it would Omnivision in third place.

Link | Posted on Sep 23, 2016 at 20:44 UTC
On article Photokina 2016: Olympus E-M1 Mark II overview video (242 comments in total)
In reply to:

noirdesir: I really would have liked an answer to the question of whether the on-sensor PDAF now also works with m43 lenses (on the Mark I it was limited to 4/3 lenses). I would suppose it now is also used with m43 lenses, but a confirmation would be nice.

You are right, the only limitation with PDAF with m43 lenses was that it only was used with continuous AF.

Link | Posted on Sep 23, 2016 at 14:57 UTC
On article Photokina 2016: Olympus E-M1 Mark II overview video (242 comments in total)

I really would have liked an answer to the question of whether the on-sensor PDAF now also works with m43 lenses (on the Mark I it was limited to 4/3 lenses). I would suppose it now is also used with m43 lenses, but a confirmation would be nice.

Link | Posted on Sep 23, 2016 at 14:30 UTC as 43rd comment | 8 replies
On article Photokina 2016: Hands-on with Hasselblad X1D (120 comments in total)
In reply to:

miles green: Regarding the X1D styling, i prefer the classic silver to the black, it screams Hassy medium format (6x6 in fact).
As for the prototype, i like the idea, having shot film cameras with similar format. But it's missing a (removable) shade for the top screen!

Too bad my budget doesn't stretch that far.... :(

Truncating the existing 100 MP 54x40 mm sensor to 40x40 mm gives you exactly 75 MP. There is thus good reason that this square sensor is only 40x40 mm.

Link | Posted on Sep 23, 2016 at 01:15 UTC
In reply to:

ZJ24: Always amuses me that some FF owners like to promote the superiority of larger sensor sizes ... Until a sensor larger than 36 x 24 is being discussed. I'm happy with my FF and APS-C options but this looks like a fantastic camera and lens set, looking forward to seeing some photos taken with it.

It looks like a great camera but it crosses a price boundary that probably puts it out of reach for most people.

Link | Posted on Sep 21, 2016 at 22:21 UTC
On article Photokina 2016: Hands-on with Olympus OM-D E-M1 II (657 comments in total)
In reply to:

Filipic: Hmm...not sure if it's good deal for many to switch to em1mk2 from original em1. There are improvements, but for me, in this case, it's better to invest in lens, or maybe two than in new body.

To be a successful technology company in the consumer space you have to have technological excellence as well as a certain emotional wow factor. People buy the product because of the wow factor and then remain happy because the technology delivers.

Link | Posted on Sep 21, 2016 at 15:31 UTC
On article Hands-on with Nikon's latest kit at Photokina (127 comments in total)
In reply to:

triton76: please let me know the purpose of a lens with approx zero dof ...
@1m F1.4 ~ 3mm
@2m F1.4 ~ 20mm
@3m F1.4 ~ 60mm

maybe astro ;o)

Well, let me know what the purpose of a lens with approx. zero angle of view (eg, a 600 or 800 mm) is.

Link | Posted on Sep 21, 2016 at 15:26 UTC
In reply to:

SnappyUK: While I applaud Fuji for this camera and would love to be able to justify its cost, I'm disappointed that they've either chosen, or had to for technical reasons, use a conventional Bayer array instead of X-Trans.

There probably would have been a similar amount of people that would have been disappointed if it had been the other way around.

Link | Posted on Sep 21, 2016 at 15:16 UTC
On article Panasonic Lumix DMC-GH5 with 4K/60p under development (48 comments in total)
In reply to:

Yxa: I think I'll be waiting for the 33 Mpix , 8k model with global shutter =GH6 in 2020

DxO hasn't tested any (at least none of the good ones) on the 20 MP m43 cameras. So that 13 MP has been achieved on 16 MP sensors. Moreover, it might have been achieved on cameras with AA filters (cannot find that info quickly at the moment), which cannot be compared to results on AA-filter-less cameras.

Link | Posted on Sep 19, 2016 at 23:55 UTC
On article Panasonic Lumix DMC-GH5 with 4K/60p under development (48 comments in total)
In reply to:

Yxa: I think I'll be waiting for the 33 Mpix , 8k model with global shutter =GH6 in 2020

Close, however the 1" sensors are 3:2 not 4:3. Using the 20.16 MP and the 8.8 x 13.2 mm sensor size, we get 2.4 μm as their pixel size. Still not very far apart (roughly the relative difference between the 36 and 42 MP FF sensors). But clearly also not completely wasted by diffraction.

Link | Posted on Sep 19, 2016 at 15:17 UTC
In reply to:

photolando: Heck, I've wondered why they don't make all sensors square. Shooting AND PROCESSING changed with digital. Square it up to fill as much of the images circle the lens produces and let us decide how to crop it later. Or give the whole image circle until it fades and let me crop out what I don't want later. Kind of like putting an 8x10 back on a 4x5 camera. Actually use to do that sometimes. Square worked with Hasselblad back in the day for eons it seems. Could work for dslr'd today. Call the ultimate raw. You get EVERYTHING the camera sees.

"Sensor cost is a very small part of total camera cost." Yeah, right.

Compare various Canon/Nikon/Sony models where a FF version cost about $1000 more than a very similar APS-C version. Depending on the model, sensor cost thus was as much as between 1/2 and 1/3 of the camera cost for FF cameras.

Or look at the absolute top end: The Phase One IQ3 100 MP back is listed as costing more than 6x the Phase One XF body, I guess 87% of the combined price is 'a very small part' (http://www.whatdigitalcamera.com/reviews/digital-slrs/phase-one-xf-iq3-100mp-review).

Link | Posted on Sep 19, 2016 at 14:55 UTC
In reply to:

fmian: No mention of sensor size?
In my eyes, if it's not the same format size as the original, then it won't do it justice.

A square 40 x 40 mm crop from the 100 MP 53.4 x 40 mm sensor gives you almost exactly 75 MP. Thus, Hasselblad can take this 53.4 x 40 mm sensor, mask off a 6.7 mm wide strip on both sides, and get a square sensor (that costs as much as the 100 MP 53.4 x 40 mm sensor).

Link | Posted on Sep 19, 2016 at 14:12 UTC
In reply to:

vscd: Bring on the original 56mmx56mm sensorsize and you will be welcomed. Otherwise.. meh'

If you are willing to pay 50% more than what the 100 MP sensor currently sells for, you might be able to get a 54 x 54 mm sensor.

Link | Posted on Sep 19, 2016 at 14:04 UTC
In reply to:

photolando: Heck, I've wondered why they don't make all sensors square. Shooting AND PROCESSING changed with digital. Square it up to fill as much of the images circle the lens produces and let us decide how to crop it later. Or give the whole image circle until it fades and let me crop out what I don't want later. Kind of like putting an 8x10 back on a 4x5 camera. Actually use to do that sometimes. Square worked with Hasselblad back in the day for eons it seems. Could work for dslr'd today. Call the ultimate raw. You get EVERYTHING the camera sees.

Cost. The reason why we don't have square sensors. If you build a camera with a square 44x44 mm sensor instead of a 44x33 mm sensor, you have to pay for 33% more sensor area, which will likely cost at least 50% more. So are you willing to pay 50% more just so can decide in post whether you want a portrait or landscape framing? And if only a minority is willing to do so, the lower sales volumes will drive up prices even more: aka are you willing to pay twice as much just so can decide in post whether you want a portrait or landscape framing?

Link | Posted on Sep 19, 2016 at 14:02 UTC
On article Panasonic Lumix DMC-GH5 with 4K/60p under development (48 comments in total)
In reply to:

Yxa: I think I'll be waiting for the 33 Mpix , 8k model with global shutter =GH6 in 2020

All the 20 MP 1" sensors have smaller pixels than a 33 MP m43 sensor would have.

Link | Posted on Sep 19, 2016 at 13:53 UTC
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