Osvaldo Cristo

Osvaldo Cristo

Lives in Brazil Itapevi, SP, Brazil
Works as a Engineer
Joined on Oct 22, 2002


Total: 151, showing: 1 – 20
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Ir is difficult to understand the rational behind those releases in a market crescently more with obssetion for smaller and lighter. Perhaps they are focussed only to their fans or mount systems with no reasonable alternatives... does it pay back? Certainly Sigma thinks yes.

As a Nikon shooter I have to thank Sigma as suddenly my pre historic Nikkor 135 f/2 DC purchased new on past millenium turned small and light. My Micro Nikkor 60 AFS f/2.8 after several years since its release looks better than Sigma current "state-of-art"... of course their new releases were not targeted to me.

Link | Posted on Mar 3, 2018 at 09:09 UTC as 23rd comment | 4 replies
On article Sigma announces nine full-frame E-mount Art primes (367 comments in total)
In reply to:

retr01976: i still predict in 5 years Sony mirrorless will be dead. You watch, I mean they have pretty much already abandoned their crop bodies in typical Sony fashion.

I do think this is also a sign Nikon and Canon need to go back to the drawing board they are starting to look out of date...

"In the mirrorless segment, Canon is #2 after Olympus (Sony's share is actually shrinking in the past 3 years: 34.3%->24.8%->17.9%)"

From: https://nikonrumors.com/2017/11/15/the-2017-bcn-camera-rankings-are-out-canon-is-up-nikon-and-sony-are-down.aspx/#ixzz58KjYGbSD

Link | Posted on Feb 27, 2018 at 18:12 UTC
On article Sigma announces full-frame 14-24mm F2.8 DG HSM Art lens (233 comments in total)

When at 2002 Sigma was the single real option for a WA zoom on FX format, I purchased its 15-30 when I got my first DSLR, Nikon D100. Big and not so great IQ but it made the job up to Nikon lanches the first DX lens in the market, Nikkor 12-24 f/4.

Great to know they are continuing introducing some interesting lenses...

Link | Posted on Feb 9, 2018 at 17:33 UTC as 31st comment
On article Apple iPhone X review (379 comments in total)
In reply to:

Sam808: There is always going to be competition between big brands, i.e. Apple, Google, Microsoft, Sony, Canon, Nikon etc. For as long as we have consumers buying products for "brand name" there will be delays in making innovative products. We need smart consumers to fast forward the slow progress of any proruct, not loyal consumers.

Fully agree! How people dare to make sh** buying decisions? Be a smart consumer: purchase like *me*! er...

Link | Posted on Feb 4, 2018 at 00:03 UTC
On article Film vs Digital: Fashion photography shootout (401 comments in total)

Time machine. Is that a 2003 article?

Link | Posted on Jan 20, 2018 at 11:00 UTC as 101st comment | 1 reply

Really? Did anybody have doubt that obssetion das rediculously abnormal?

Link | Posted on Dec 30, 2017 at 02:36 UTC as 78th comment
In reply to:

MikeFairbanks: I would love to get a camera like this, but as long as they don't offer full manual control or at least shutter priority, it's a no-go for me. There is no logical reason for them to handicap these cameras. Auto and P modes for the tourists (or enthusiasts) are great. But some people want to shoot sports like surfing, which demands an extremely high shutter speed.

Use sports/action mode for sports and action!

Ok, I knew it wasn't the same, but close enough for me. I used that with my old u1030 from Oly. It worked most of the time...

Link | Posted on Dec 9, 2017 at 11:30 UTC

Nikon will end their operations in Brazil... it does not look me a huge problem. Probably they will return to work with a local channel. For several decades TTanaka was their sales and service channel in the country and before them there was another one. I received better service from TTanaka as they received the customers personally, Nikon in Brazil never received the customer. Even living close to their offices they demanded I send any stuff (in my case a lens) by mail!

Anyway it is clever to work with local channels as the local market is not so big, probably shrinking, the local regulations are a PITA and the cost of the operations is ridiculously high.

I am sorry for the guys that are working for Nikon in Brazil and will left the company.

Link | Posted on Nov 7, 2017 at 01:17 UTC as 104th comment | 1 reply

Many years ago I started to look for a mobile with 100% screen surface... we are close now, closer with iPhone X, finally... but definitively not sufficiently attractive to make myself abandon my Samsung S8+ for it. Let us see the next iteration.

Anyway it looks a great news for Apple fans. Enjoy, guys!

Link | Posted on Sep 13, 2017 at 01:41 UTC as 116th comment | 3 replies
In reply to:

privater: My excerpt from this video:
Hope to save you guys 30 minutes.

1. DR range comparison: D850 same with D810.
2. Color diff: D850 have better color, more meter sensor also helps tracking
3. 10 pin terminal is same with D5
4. Assign dedicate button to change file size on the fly in a workaround way incorporate with `my menu`
5. Which lens best on D850: gold ring lenses.
6. Bitrates on external recorder, HDMI 8bit 4:2:2 signal, it depends on external recorder
7. speed lights compatible with D850
8. ES-2 digitizing adapter can be used on other camera.
9. focus stack aim to simplify the process without using external softwares.
10. least talked feature: digitizer, focus shift, crop mode 1:1 has 30Mpx

Thank you to your summary. It is very appreciated...

Probably I will skip that version and I will stay with my great D810. I have purchased it at its launch and since then I have made 70+k shots with it and I think it can reach 200k...

Link | Posted on Aug 31, 2017 at 00:13 UTC
In reply to:

Biowizard: Sad to think that collectors in 90 years' time from now, on finding a Canon or Nikon DSLR, will find not film, but a little memory chip for which, likely as not, there will be no available reading hardware.


My CF cards from 1990s can be read after 20+ years... So far so good... :)

Link | Posted on Aug 1, 2017 at 11:53 UTC

Crazy world... here in Brazil you can find tons of similar portraits... but it is a winner!


Link | Posted on Nov 16, 2016 at 23:29 UTC as 85th comment | 1 reply

It was the successor of my first digital camera... Kodak DC260 I bought on 1998... and paid USD 1,000 for it!

I purchased it to learn composition to upgrade to a "high end" SLR but that small camera "spoiled me": I waited until Nikon released D100 to go to a SLR... more specifically DSLR.

Link | Posted on Oct 20, 2016 at 23:57 UTC as 24th comment | 1 reply
On article Throwback Thursday: Canon PowerShot Pro70 (111 comments in total)

What a monstruosity!

Link | Posted on Sep 15, 2016 at 21:20 UTC as 56th comment

Well, not Brazilians, but foreign were his thieves: Venezuelan Marco Antônio Ojeda Peña, Peruvian Williams Teodoro Torres Toledo and Colombian Lina Marcela Ramires Saavedra are at the prision since nine days ago.

Unfortunately the bad character is spread on the world... :-(

Link | Posted on Aug 16, 2016 at 13:58 UTC as 9th comment
In reply to:

Ruy Penalva: Fora Temer! Usurper.

Fora comunas... Já vão tarde!

Link | Posted on Aug 6, 2016 at 18:01 UTC
In reply to:

ozturert: I hear these things happening quite frequently in Brasil. Not good for reputation: Country of thieves?

Yes, it is a country of robbers and other very bad things... but is a great Democracy: its highly corrupt government reflects its mostly highly corrupt people that vote in the guys that reflect themselves at best...

I am really sorry for a minority of decent people living there that does not fit that general profile.

Link | Posted on Aug 5, 2016 at 22:34 UTC

I never liked Mavica... My Kodak DC260 I bought on 1998 had 1.5M pixel images, good optics and used 16MB CF cards... Great time them... 😋

Link | Posted on Aug 4, 2016 at 12:08 UTC as 105th comment | 1 reply

Funny. Very funny. 😂

Link | Posted on Jun 21, 2016 at 16:23 UTC as 19th comment
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)

Honest evaluation. Thank you DPR.

Link | Posted on May 31, 2016 at 20:22 UTC as 92nd comment
Total: 151, showing: 1 – 20
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