Jylppy

Joined on Mar 1, 2012

Comments

Total: 270, showing: 1 – 20
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I use averaging with my 5DII. I can shoot reasonably sharp images at 1/10s handheld with an IS lens (16-35/4L IS, 24-105/4L IS) and use ISO 1600 that is the max reasonable ISO for 5DII considering the sensor noise profile. But that is not enough for dark conditions like museums, churches etc. I shoot a burst until the buffer gets full (i.e. 7-8 images) and combine those photos with PhotoMatix HDR software using averaging (i.e. not a HDR processing).

This results good improvement in noise and sharper images. Recommended!

Link | Posted on Apr 27, 2017 at 13:07 UTC as 14th comment
In reply to:

PhotoKhan: Won't an engineer bundled along with each Google Nexus 6P present a bit of a logistics problem for both Google and the buyer?

At least there might be issues with Visas etc.

Link | Posted on Apr 27, 2017 at 12:59 UTC
On article Panasonic Lumix DC-GH5 Review (1163 comments in total)
In reply to:

entoman: Am I the only person here who actively DISLIKES the current trend to produce hybrid stills/video cameras? Most of the photographers I know don't want video, which just makes stills cameras more complex and more expensive. I'm sure the Pansonic is a great compromise (biased towards video), but I'd much rather see cameras designed EITHER for stills OR for video. "Jack of all trades, master of none"

There clearly is need for the video features since companies keep adding those. If you don't use video, you just are not in the target segment of GH-5. I don't shot video either, but there are plenty of people who do.

Link | Posted on Apr 12, 2017 at 02:38 UTC
On article Fujifilm GFX 50S Review: Modern MF (899 comments in total)

Those example photos look something one can take with a pocket camera... There is no "wow, medium format" element at all. Great to hear a MF camera made by Fuji is now good for street-photography. That area was previous dedicated to small-sensor mirrorless cameras only.

And where is the standard bicycling tracking test? This was supposed to be full review?

Link | Posted on Apr 6, 2017 at 02:02 UTC as 77th comment
In reply to:

tinternaut: I think it's telling that Fuji went with Bayer for their medium format camera. That said, I'm currently bargain hunting out of curiosity for their JPEGs ...

@badi, et. al. By "had any realistic alternative" I did not mean pure technical reasons, but economic ones. The GFX (or any MF) volumes will be so low that customizing the sensor for Fuji only would not have been economical. That's why I said _realistic_ alternatives.

Link | Posted on Mar 31, 2017 at 03:36 UTC
In reply to:

tinternaut: I think it's telling that Fuji went with Bayer for their medium format camera. That said, I'm currently bargain hunting out of curiosity for their JPEGs ...

As if Fuji had any realistic alternative for the (Sony's) bayer sensor...

Link | Posted on Mar 30, 2017 at 06:23 UTC

Which company is the next after Panasonic drops the gloves? Olympus?

I have said it long time how the bigger industry trends are not in favor of m43 system. Sony Alpha's are the same size with far better image quality and the whole market is getting eaten from below by the smartphones. If you have paid attention to the latest announcements, most of those are about companies extending to upper market segments (Fuji MF, etc).

As a consumer is always a bad thing to see choices and competition getting fewer. That can only mean that prices go up and that the consumer loses in the process.

Link | Posted on Mar 28, 2017 at 03:58 UTC as 60th comment | 2 replies
In reply to:

Jylppy: There is a nasty economic factor in play here too making larger sensor to be behind in silicon technology. The probability of defects on processed silicon is fixed per area assuming the same level of manufacturing. Let's say it A% over area size of X. And the probability of defect-free sensor of area X is then P(defect-free) = 1-A. Now let's make the sensor 2x larger in dimension making the area 4X. What happens to the probability of a defect-free sensor? Well, P(defect-free 4X sensor) = (1-A)^4.

Replace A with let's say 5% => P(defect-free|size X) = 95%.
Sensor sized of 4X: P(defect-free|size 4X) = 0.95^4 = 81%

Not only does a larger sensor cost more money since it takes more expensive silicon area, but there is lower production yield increasing the cost further.

Plus edge loss is larger with larger sensors (silicon wafers are round, sensors dies rectangle).

And then the lower production volumes.

Lower cost products / components sell in higher volumes in general. Assume now a sizeable fixed upfront investment for a new sensor (RD + production line). The fewer number of products (i.e. sensors) one is going to produce, the higher the amortized unit cost of that fixed investment is.

In summary, economics don't play well for larger sensors.

What does this then mean for larger sensor? Well larger sensors cost exponentially more to produce. And those will have to use older silicon technology (that has higher yield) .

Maybe Sony can accumulate enough volume for their MF sensor and update the tech to something more competitive in the next generation (after 4-5 years?) . Then we need the lenses...

Link | Posted on Mar 22, 2017 at 15:03 UTC

There is a nasty economic factor in play here too making larger sensor to be behind in silicon technology. The probability of defects on processed silicon is fixed per area assuming the same level of manufacturing. Let's say it A% over area size of X. And the probability of defect-free sensor of area X is then P(defect-free) = 1-A. Now let's make the sensor 2x larger in dimension making the area 4X. What happens to the probability of a defect-free sensor? Well, P(defect-free 4X sensor) = (1-A)^4.

Replace A with let's say 5% => P(defect-free|size X) = 95%.
Sensor sized of 4X: P(defect-free|size 4X) = 0.95^4 = 81%

Not only does a larger sensor cost more money since it takes more expensive silicon area, but there is lower production yield increasing the cost further.

Plus edge loss is larger with larger sensors (silicon wafers are round, sensors dies rectangle).

Link | Posted on Mar 22, 2017 at 14:51 UTC as 187th comment | 2 replies
In reply to:

Jylppy: The scale of smartphone sales is just beyond anything else in consumer electronics. The new Personal Computer.

And this is not say that "PC will disappear". No, it will continue as high-end workstation proposition for smaller market segment. No one has come up with more effective way to input text than a keyboard. Mouse is unbeatable for tasks requiring precision. Certain tasks require display size and computing power only a PC can deliver. For now.

Link | Posted on Mar 9, 2017 at 03:03 UTC
In reply to:

Jylppy: The scale of smartphone sales is just beyond anything else in consumer electronics. The new Personal Computer.

The Great Irony of the story here is that since PC was created, it has aspired to compete against Workstation - a segment then dominated by UNIX-workstations from Sun, IBM, etc. For long time PC was good-enough for many "ordinary" tasks at the home and office, but could match the requirements for a high-end workstation. But economics of scale were on PC's side and finally PC beat Workstations! PC became the Workstation. But then smartphones emerged and suddenly PC was not Personal Computer anymore.

Today's PC is a Workstation. A product for specific, demanding tasks like CAD design, document creation, media workflow, high-performance gaming. But smartphone is THE Personal Computer for most the things people need. My wife sold her Macbook in 2013 and has been smartphone/tablet only since that.

Link | Posted on Mar 9, 2017 at 03:00 UTC

The scale of smartphone sales is just beyond anything else in consumer electronics. The new Personal Computer.

Link | Posted on Mar 7, 2017 at 03:48 UTC as 90th comment | 7 replies
On article Extremely dramatic video touts Canon's CMOS technology (196 comments in total)

LOL this video... Like from 80s.

Link | Posted on Feb 17, 2017 at 02:25 UTC as 15th comment | 2 replies
On article Canon debuts EOS M6 mirrorless with optional EVF (668 comments in total)
In reply to:

Jylppy: ESO M system needs urgently more native lenses ... And I don't think the additional EVF is a good idea.

4K? Well, I don't care, but I think it is time to add it.

Please don't get me wrong. I am a Canon fan and shoot Canon FF. I have plenty of EF lenses and Canon flashes and I am very interested of the EOS M system especially after superb EOS M5. I just hope Canon improves the native lens selection. I don't really care video since it is so much hassle to edit and takes lot of space.

Link | Posted on Feb 16, 2017 at 05:06 UTC
On article Canon debuts EOS M6 mirrorless with optional EVF (668 comments in total)

ESO M system needs urgently more native lenses ... And I don't think the additional EVF is a good idea.

4K? Well, I don't care, but I think it is time to add it.

Link | Posted on Feb 15, 2017 at 06:30 UTC as 102nd comment | 3 replies
On article Prime or zoom? LensRentals investigates (237 comments in total)
In reply to:

LaurenceSvirchev: It is not 'mind-numbing numbers' but excessive ego and hubris that makes Mr. Cicala's difficult to read. The first three sentences of the roles of quantitative and qualitative sciences demonstrate a poor understanding of their respective roles in understanding what our eyes see. Example, Einstein played piano constantly while pondering the concepts that were revealed on his three papers in 1905 ('annus mirabilis') that changed the way society looks at the world. Use of rage-filled phrases like "setting my teeth on edge" are a wonderful way to fog an issue: no one really cares about Mr. Cicala's frustrations except perhaps the author himself.

@laura, I do enjoy his style. If he would ride dull scientific papers, no one would bother to read his blog. Please don't judge too hard.

Link | Posted on Feb 13, 2017 at 03:27 UTC
On article Canon granted third most US patents in 2016 (145 comments in total)
In reply to:

joe6pack: I would hazard a guess that it is because some executives in Canon has the brilliant idea of "quantity > quality". They want to beef up their patent portfolio so they can increase their bargain power. Exactly how patent trolls are thinking.

I also have US & worldwide patent and I know exactly what you mean by low quality of patents and making those in huge numbers. Big companies build patent portfolios for protection of the business and to lower cross-licensing costs.

I just can't understand the amount of Canon-hate here. Every single post mentioning Canon attracts huge amounts of competitor-fanboy flame. If one is happy with Oly or Sony or Fuji or whatever, just enjoy it. Canon makes fantastic cameras with superb user interfaces and many people buy and like those. Don't assume every one disagreeing with you is an idiot. And I mean fanboys in general, not you Joe.

Link | Posted on Jan 21, 2017 at 01:53 UTC
On article Canon granted third most US patents in 2016 (145 comments in total)
In reply to:

joe6pack: I would hazard a guess that it is because some executives in Canon has the brilliant idea of "quantity > quality". They want to beef up their patent portfolio so they can increase their bargain power. Exactly how patent trolls are thinking.

Have you went through their patent filings to make such a conclusion? It must have been lot of work.

Link | Posted on Jan 17, 2017 at 07:32 UTC
On article Panasonic Lumix DC-GH5 Review (1163 comments in total)
In reply to:

AngularJS: Another $2k MFT? If the trend continues, FF cameras will start look like a bargain :)

And just how does that differ from cropping images post?

Link | Posted on Jan 12, 2017 at 02:19 UTC
On article HMD Global releases Nokia 6 Android smartphone (42 comments in total)
In reply to:

DavidsfotosDotCom: Does it have Nokia's off line Navigation app?

Here's POI search used to be ridiculously bad, but it has come long way since that. I remember searching "Carrefour" while traveling in France and getting the "nearest" fix to ... Haiti! There is a town called "Carrefour" in Haiti. That was those "OMG?" moments. But it is better now. Here's offile maps are great when traveling if you don't have big local / roaming data plan to spend.

Link | Posted on Jan 11, 2017 at 03:07 UTC
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