Lives in Brazil Campinas, Brazil
Works as a math professor
Joined on May 4, 2007


Total: 587, showing: 1 – 20
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On article Throwback Thursday: Our first cameras (381 comments in total)
In reply to:

cshyde: I used the Kodak plastic brownie to take my first pictures on 127 roll film. My Dad bought a Kodak Retina in the 1960's I used that until I scrimped and saved enough money to buy a Pentax Spotmatic F in High School. While in college I bought an Olympus OM-1 system which I wore out just in time to start playing with digital. I had one of those Sony cameras that stored pictures on a floppy disk. Today I carry my iPhone and a Panasonic LX-7 every day. I use a Nikon D500 for work in industrial photography. I still shoot film and thanks to the Millenial hipsters it's making a comeback. I knew they would turn out to be good for something.

I also started with 127 roll film Kodak Brownie Starlet (1966) and moved up to a AP Spotmatic F in 1974, at the end of my first year in college.

Link | Posted on Mar 16, 2017 at 13:58 UTC
On article Throwback Thursday: Our first cameras (381 comments in total)

Well, very long ago (1966), I got a Brazilian version of the Kodak Brownie Starlet for my 10th birthday, it was called Kodak Rio 400, as it commemorated the 400 years of Rio de Janeiro's founding (1965).


Recently I got perfect copy in the styrofoam box, mine got lost somewhere along my many movings. It started my affair with photography, still keep many images taken with it, of family mostly, including dog of course.

Link | Posted on Mar 16, 2017 at 13:56 UTC as 221st comment

The decline in actual cameras started in 2010, after peaking in 2009, according to the graph, and it is basically due to the waning compact camera sector. ILCs will survive at the 8-10 million units/year, not a bad number, likely more than in the 1990s or earlier.

No wonder Hassy and Leica are putting cameras or whatever with their brand names in smartphones.

Smartphones brought instant photography to the masses, a good thing, why so much worry around here. Now almost everybody in all parts of the world can take a picture, send it over via one of the social media systems to friends and family, still a very good thing.

Artistic and well-done documentary photography have always been the realm of a few, like any other human endeavour that involves dedication, craft, etc., and will stay that way. There are 100 millions lenses by Nikon and another bunch by Canon out there. A few million people involved seriously in photography is likely more than in any other similar human activity.

Link | Posted on Mar 7, 2017 at 14:59 UTC as 42nd comment

My first slr, the AP SP F, purchased in 1974, is right there. Great camera, still works, minus TTL metering. The Takumar SMC 50mm f/1.4 was a classic, beuatiful bokeh and nice anti-flare quality.

Link | Posted on Feb 23, 2017 at 12:27 UTC as 13th comment

Sigma produces good lenses, but I wonder about the AF performance, especially with the longer FLs. I have to use extreme AF adjustments with their 17-50mm on the D7000.

Also, I don't like the flare rings that they produce, tend to be greenish and ugly, unlike the classical golden rings of Nikon and Pentax lenses (have never used Canon lenses).

Maybe the ART series is better in that respect

Link | Posted on Feb 21, 2017 at 11:56 UTC as 51st comment | 1 reply
On article Throwback Thursday: the Nikon D80 (243 comments in total)

My first dslr, still works perfectly in the hands of older daughter, after a revamp by Nikon Brazil. My best digital era images were taken with it. It will be 10yo in August. Cheers, live long D80!

Link | Posted on Feb 21, 2017 at 11:50 UTC as 4th comment
On article 2016 Challenge of Challenges winners announced (62 comments in total)

Great image, epic in all aspects, congrats!

Link | Posted on Feb 21, 2017 at 11:46 UTC as 22nd comment
On article Ultimate OM-D: Olympus E-M1 Mark II Review (1360 comments in total)

The Nikon D500 is king of cropped cameras, in all aspects. It's at least 1 stop better in high ISO compared to the other cameras e and the detail at base ISO is outstanding. The AF is also top-notch. Maybe Nikon will make a mirror-free version someday.

Link | Posted on Dec 2, 2016 at 15:25 UTC as 71st comment | 8 replies

what a sad set of brandmongers! Mine is better that yours. Silly and pathetic. Just a new lens for those that use such pro-level stuff, congrats to them.

Link | Posted on Oct 19, 2016 at 23:29 UTC as 31st comment
On article Pinnacle Prime: Olympus ED 25mm F1.2 Pro sample gallery (201 comments in total)

Hmm, ugly green flare even w/o light source in field view. And bokeh is a bit nervous as well.

Link | Posted on Sep 19, 2016 at 21:50 UTC as 20th comment | 2 replies

Weird post to say the least. I like the 15-45 mim kit zoom, finally someone understands a kit zoom os more useful in the WA end.

Not in the market for a new camera, the Leica 109 is all I need in the small world.

Link | Posted on Sep 18, 2016 at 15:25 UTC as 276th comment | 1 reply
On article Hands-on with Hasselblad X1D (806 comments in total)

Nice, though expensive.

Link | Posted on Jun 23, 2016 at 00:11 UTC as 198th comment
On article Fast telezoom: Sigma 50-100mm F1.8 sample images (164 comments in total)
In reply to:

dopravopat: I have shot about 500 images with this lens and must say that it is worth every cent I paid for it. Those who say I should buy a Canon 85 mm f1.8 either do not know what they are talking about or are comparing apples and oranges.

The only negative thing to write about the Sigma 50-100 f1.8 is the tripod collar, which cannot be removed and always gets in the way when operating the lens. I really wonder why Sigma decided to design the tripod collar like that, anyway I rotate it, it always bothers me and I would rather have no collar at all than a fixed one like this.

Question to you and DPR: how resistant to flare is this lens? My Sigma 17-50 f/2.8 has a tendency to show greenish flare patterns in somewhat easy lighting conditions, like as in light coming from a lateral window. This is important for my shooting needs. Nikkors have much better flare characteristics, in my exp.

Link | Posted on Jun 13, 2016 at 15:20 UTC
On article Back to the action: Nikon D500 Review (1122 comments in total)

Is it true that its VF looks larger than that of D810?

Link | Posted on May 16, 2016 at 20:31 UTC as 244th comment | 5 replies
On article Back to the action: Nikon D500 Review (1122 comments in total)
In reply to:

The Rale: I apologize for my ignorance but I am struggling with application of whole ISO-invariance thing. Since shooting at e.g. ISO100+5stops is "almost" as good as ISO3200, why not just shoot ISO3200? Can somebody give me real life example where this would be beneficial?

Actually, it depends on camera. The D500 seems to have "optimal" maximum ISO at 400, meaning going over that will not produce better results at all, and one may be risking blowing HLs. Iliah Borg, our RAW specialist, has tested it re that issue.

Link | Posted on May 16, 2016 at 20:28 UTC

Impressive, it looks like ISO is not an issue any more.

Link | Posted on Apr 18, 2016 at 15:43 UTC as 34th comment

No miracles, as many, including me, were predicting. As Homer once said, famously, when Margie wanted to build a moto perpetuo for the school's science project, "In this house we obey the Laws of Physics". It seems that many in these fora think otherwise.

Link | Posted on Mar 28, 2016 at 15:09 UTC as 115th comment | 2 replies

Canon and Nikon have nice compacts, but none comes close to the LX100/D-Lux 109 in terms of controls and ergonomics. These look like expensive toys, the Panny/Leica like a good compact.

Link | Posted on Feb 26, 2016 at 18:13 UTC as 20th comment | 4 replies
On article CP+ 2016: Hands-on with Nikon DL compacts (315 comments in total)
In reply to:

Cihangir Gzey: Nikon dropped 2 huge bombs into the market which has been dominated by its own veterans quite for a while (And which are too hard to swallow).
Let's have a look:
-24-85mm is really a good cam for average power user. OK, there is no EVF but average user doesn't look for it.
-Here we go. 18-50mm. This is a FANTASTIC focal length which makes us think (and dream) for it. This may be my dream travel camera. BUT, checking out the top side, BOTH EVF & internal flash are cancelled and we are left with a view of beautiful (!) hinge (which doesn't exist in 24-85mm model).WHY?
2 seperate engineering teams designed and produced those cams? You may say "18-50mm is more Pro".
If it is PRO, than where is the EVF?Pro uses EVF.
"A Pro uses external flash". Than what about internal EVF required photos with flash? How you will take them comfortably by using an external EVF & external flash at the same time?
IMHO, omitting those 2 key elements from an otherwise FANTASTIC cam is "going too far".

"Pros use EVF". Really? Not in such small cameras. I have the Leica LX100, it has a VF, I rarely use it, despite the fact that I always use the VF on the dslrs. Different things, totally.

Link | Posted on Feb 25, 2016 at 19:04 UTC
On article CP+ 2016: Hands-on with Nikon DL compacts (315 comments in total)
In reply to:

vermaden: Nikon is stupid.

They have NIKON 1 system, why not add 18-50/1.8-2.8 and 24-85/1.8-2.8 lenses for that system?

Why not introduce 4K capable body for that system?

With announcement of this DL trio NIKON 1 system is officially dead.

@Squire: at once? N1 users have asked for ages for fast zooms, they should have released these a long time ago. I am one that dropped the system in favor of the Leica LX100, because of that, I'm not going back to Nikon (despite the fact that the 18-50 range would fit my needs better than the 24-75 in the LX100).

Link | Posted on Feb 25, 2016 at 19:00 UTC
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