Jose Ernesto Passos

Lives in Brazil Sao Paulo, Brazil
Works as a Consultant
Joined on Aug 19, 2009


Total: 40, showing: 1 – 20
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In reply to:

BBQue: So DPreview now peddles fake rumors? Why oh why?

Mirrorless for Canon or Nikon means to create a new mount and an entire new line of lenses. Will never happen, it‘s too late in an age where camera sales are dropping fast.

I agree, that it is necessary to have full compatibility with current lenses, but it may have a beautiful solution to use the old and new lenses in the new cameras.

Link | Posted on Jan 22, 2018 at 23:26 UTC

The fact is the camera market is a shrinking one. When the mirrorless cameras dominate it (just after they turn more than 50% of total market) they will dominate a smaller market. As time goes by the smartphones will have better picture quality and reduce the camera market even more.
I just hope that Canon, Nikon, Sony, Pentax, Sigma, Hasselblad, Leica... and so on, will find ways to stay on the market for the next ten years... I just like to see the competition, new cameras and lenses, the new features they have been creating. Unfortunately this game may just disappear.

Link | Posted on Dec 5, 2017 at 01:45 UTC as 15th comment | 2 replies
On article Buying Guide: Best cameras for travel (113 comments in total)

The sony is a much more expensive camera than the rest. Looks like a different class of machine. The Canon EOS M5 with a 18-150mm lens looks more appropriate for comparison.

Link | Posted on Nov 22, 2017 at 03:03 UTC as 36th comment | 1 reply
On article Sony announces lightweight FE 24-105mm F4 G OSS lens (297 comments in total)
In reply to:

quintana: I wish they would offer something similar for APS-C. Then there should be a weight/size advantage over FF. Sony's excellent APS-C bodies greatly lack good zoom lenses.

Guess I'll stick with my D500 + 16-80/2.8-4 a lot longer as long as nobody can offer me a viable mirrorless alternative.

I have some Sony cameras, and they are no match to the D500.
Sony A6300 stops taking pictures because of excessive heating!! It was designed to behave like this (there is a message on the camera when it overheats).
The smaller sensor Sony cameras also are somewhat cumbersome to take pictures on the street, their menu systems is not well thought, sometimes the battery door opens while I am handling the camera... I prefer to shoot with the D500.

Link | Posted on Oct 28, 2017 at 12:39 UTC
In reply to:

Nikoniano: Don't know, invested too much in building a decent Nikon 1 equipment and now must get rid of it and start again at higher level? This mirrorless FF will be probably impossibly expensive, go back to old reflex bodies when used to Nikon 1 it's a stress. Indeed I was hoping for an affordable APS-C mirrorless body (a Nikon 2 system, also with a longer focal distance) or a serious Nikon 1 body (the J5 or V3 wasn't that bad).. But it's their strategic choice, have luck! Now I'm playing with a Ricoh GR that give me portability & quality, losing flexibility and speed. We'll see when, what and how!

There is to much hipe about Sony cameras. I have an A6300, and it get hot internally, and stops taking pictures. I upgraded the firmware, to see if it stops doing this. I also have a Canon EOS M5, it shoots the whole day without stoping. It is not as fast taking pictures but don't let you down in the middle of the action!!
There is no magic it takes time to have a new technology working well.

Link | Posted on Sep 18, 2017 at 12:21 UTC

I think justice would be to keep the prizes, but give to the real author of the pictures.

Link | Posted on Sep 6, 2017 at 01:47 UTC as 32nd comment
In reply to:

PhotoCGI: "This business move is part of a growing effort on Canon's part to bring more of its production business back to its home nation"

They can afford to be "patriotic" now since the robots at the plant need no wages...

The productivity of the japanese workers who build and maintain the plant will allow the production of cameras at a competitive cost. Japan will remain the most productive industrial economy.

Link | Posted on Sep 2, 2017 at 00:39 UTC
In reply to:

FilmDigital: FYI: no one can copyright an idea. Section 102(b) of the Copyright Act specifically states: “In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle or discovery, regardless of the form in which it is described, explained, illustrated or embodied in such work."

In this case, it means that the photographer's "idea" to let the animals play with the gear and trip the shutter at their discretion CANNOT be copyrighted. ANYONE can use this method, if they so choose, to photograph wildlife.

Copyrights DO cover “original works that the creator fixes in a tangible form." In other words, it protects the specifics of creative works after they're published or printed or otherwise distributed.

Bottom line: nobody can steal or profit from your work without your consent, but you can’t safeguard the idea behind it.

Who composed the photo? The macaque or nobody?

Link | Posted on Jul 15, 2017 at 01:39 UTC

Nikon is in the right direction designing smaller and lighter lenses, like this one and the 300mm f4. It is much easier to hand hold. The pricing must be competitive so it makes more feasible to shift to the new versions.

Link | Posted on Jul 12, 2017 at 01:15 UTC as 10th comment
In reply to:

Einride: For those interested in air to air photography/cinematography: Did you see this?

Aerial Filming took a giant leap forward when Swedish aerial specialist, Peter Degerfeldt at Blue Sky challenged Gyro-stabilized Systems in Grass Valley, US, to build a GSS 520 5 axis system that would produce rock solid images at a speed of more than 300 knots..
Blue Sky’s client, the Swedish company Saab Defence and Security, required high end motion and stills for their multirole fighter Gripen.

Normally, all stabilization systems on the market are approved for helicopters, and thus a speed of maximum 125 to 135 knots.

Saab required at least 300 knots for their filming and stills projects.
GSS took on the challenge, and on a cold mid winter day, north of the arctic circle in Sweden, the Blue Sky team mounted the brand new GSS 520 on to the weapon station of a jetfighter.
Suspended in the Gyro was a Red Dragon 6K mounted with a Canon 30-300m lens.
We chose that particular lens as it provided the shortest snout.
No cables, between the Gyro and the cockpit, were used.
Aerial DP Peter Degerfeldt was flying in the backseat of the Saab 105, operating the Gyro via modem.
Picture was transmitted via the Paralinx Tomahawk HD inside the cockpit to a Atomos 7” recorder/monitor.
Despite the fact it was -20C (-4 F ) on ground and probably much colder in the air, everything went flawlessly.

I have never seen anything like it. That stabilisation is sick!

Great information!

Link | Posted on Jun 19, 2017 at 16:45 UTC

The complete cycle of innovation will come when the first lenses using the new technology in development by Harvard reach the market. (see metalens in dpreview June 7,2016 or the following ). With this new technology mirrorless will be the technology of photography, all our lenses will be obsolete. The cell phones wiil be capable of a real zoom...

Link | Posted on May 30, 2017 at 07:19 UTC as 9th comment | 1 reply

Nikon and Canon could develop a new line of Full frame cameras mirrorless with a strategy similar to what Nikon is doing with new cards, The Nikon D5 is offered in two version one with two XQD and the second with two CF card slots. They could develop two versions of a new mirrorless Full Frame, one version compatible with the current lenses and another with a new type of mount that could be used for new lenses designed to optimize them for a mirrorless body. Is this possible as a solution?

Link | Posted on May 24, 2017 at 22:57 UTC as 30th comment | 12 replies
In reply to:

Jose Ernesto Passos: I have a question, what kind of design does Canon use in their movie cameras?
The C100, C300 are compatible with EF mount lenses.
These movie cameras could be used as a base for designing a mirrorless camera?

Please comment on this perspective.

I have no expertise in camera design, and the discussion on the article above did not mention the Canon movie cameras, for me they look like mirrorless cameras.
Canon has experience with these products. They could use to launch a new line of mirrorless, which could be less error prone.
My question is just a question to the author.

For example, I have a Sony a6300, which has been highly rated, but for me it is not a very reliable camera. It stops taking pictures, when the camera overheats. On the same environment and temperature my Canon DSLR never stopped working. The Sony is smaller but sometimes it just doesn't take pictures. I live in Brazil, and the Sony stopped working on a day at the club when the temperature was around 27 degrees Celsius, after more or less 100 pictures. With the Canon I took more than 400 pictures in 2 hours, and the temperature was around 32 degrees Celsius.

Link | Posted on May 24, 2017 at 02:11 UTC

I have a question, what kind of design does Canon use in their movie cameras?
The C100, C300 are compatible with EF mount lenses.
These movie cameras could be used as a base for designing a mirrorless camera?

Please comment on this perspective.

Link | Posted on May 24, 2017 at 01:31 UTC as 54th comment | 4 replies
On article Modern Mirrorless: Canon EOS M5 Review (1651 comments in total)
In reply to:

rsdofny: As I grow older, the appeal for me to carry a DSLR around is diminishing everyday. I am hoping that I can have a new camera body that is small so that I can carry a pancake lens with it for normal days or some bigger lens on special occasions. It appears that this camera is small enough for portability, but too small ergonomically to fit with a slightly bigger zoom lens that I already have. The Sony A6X00 has the right design in size and can fit an EVF in the body at the same time. Also, low light performance helps, but not 4K video.

Canon exec said that they wanted to dominate the mirrorless market, but their action did not support their claim.

I have a Sony A6300. It is a nice camera, but a major drawback, it stops taking pictures and gives a message of high temperature inside the camera! I got several times this type of situation, after taking around 100 pictures in under one hour.
I don't like a camera that makes you miss good pictures, because it freezes. I am planning to buy an M5 in my next trip to the USA.

Link | Posted on Apr 30, 2017 at 16:37 UTC
In reply to:

HosseinG: The exact same methodology and post processing could be done with 1DX, and then results should be compared.
In this scenario, add some moving car and you will never get the smooth red and yellow lines like DSLRs, you will get some broken line.
These techniques are developed based on some assumptions and work only if you use them in that situation, they will fail in general use.

I agree with you, and would like to complement that with the following information:
This new lens technology being developed at harvard will impact the camera and photographic world in the future.

Link | Posted on Apr 26, 2017 at 23:12 UTC

I have a curiosity, what information is available about the health of Sony balance sheet? Sony has made big mistakes, each one impacted their balance sheet negatively, their loss of the TV market, their losses in the cell phone were not small (remember Sony Ericsson a joint venture gone sour).... Some months ago the news was that Sony strategy would be to be a provider of sensors to the industry in general. Were they successful in following this? (or Samsung is taking Sony marketshare in sensors for the cell phone market?) My view is that Sony is a company trying to find a new market, a new strategy after having lost many good market positions to Samsung and LG, and other competitors. The camera market is not big enough to bring financial health and stability to Sony.

Link | Posted on Apr 19, 2017 at 01:00 UTC as 12th comment | 3 replies
In reply to:

Peiasdf: I am not worried. Nikon will make a very good 3rd party OEM for E-mount. It has better flash lineup than Sigma as well.

Sony has lost money in key areas, like TVs, cellphones and other products, I hope they improve financially.

Link | Posted on Mar 14, 2017 at 02:11 UTC

Unfortunately the evolution of technology is changing the market for good. One major change is the celular with its cameras taking the market from point and shoot cameras, the other one will come from advances still on the lab, but coming in 5 years, like the new type of lens being developed at Harvard. Lenses will change too, so lets be prepared to receive another technology disruption on our way. Companies and consumers will have to adapt to this new environment. I still plan to buy the 105mm f1.4 in the near future... and an EOS M5 too...Lets keep taking pictures, that is the fun part!!!

Link | Posted on Feb 14, 2017 at 00:17 UTC as 144th comment
On article Buying a second lens: what lens should I buy next? (297 comments in total)
In reply to:

vesa1tahti: I need a telephoto lens e.g. for bird photography. But can't make a decision: an APS (D7200) or a MFT (E-M10 II) lens. There are e.g. a couple of 150-600 mm APS-C lenses (Sigma, Tamron, etc.). For MFT, there is an excellent 300mm/4 prime lens. Zoom or not? Difficult.

Nikon with a Sigma 150-600mm lens will make your day. The cheaper version is also lighter and can be handheld. There is a review of this lens on YouTube that is very helpfull. The 4x zoom is very flexible on the field. Nikon focuses fast and sharp.
My opinion is based on my experience with this lens, I don't have an Olympus camera or lens, so I have nothing against it.

Link | Posted on Jan 16, 2017 at 06:14 UTC
Total: 40, showing: 1 – 20
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