Lives in Portugal Lisboa, Portugal
Works as a IT Engineer
Joined on Mar 6, 2007


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On article Ultimate OM-D: Olympus E-M1 Mark II Review (1245 comments in total)
In reply to:

PRohmer: Gold award?! Really? I don't even see the point of this camera at this price point.
How can this favorably compare to X-t2, X-pro2, M5 or even G85?

I believe the question is instead: How can it not?

Link | Posted on Nov 24, 2016 at 15:27 UTC
In reply to:

Mistajolly: + chroma noise is much better, certainly better than GX8
- images look soft. Is this too much processing to remove chroma noise or is the image out of focus?
- still around 1-stop behind APSC (laws of physics)

Same conclusion here. I thought it was the same sensor but the Mark II is clearly one step ahead of the GX8.

Link | Posted on Nov 18, 2016 at 08:53 UTC

This article starts with utter nonsense. It's right there in the tile: "$2000+".
I could understand a price top limit, but a low limit? What sense is in that?
Do you know of any "Semi-Pro"/whatever that says "I need a new camera body, but because I'm a Semi-Pro I can't spend less than 2000$!" ?

Anyway, having said this, and considering dpreview says they selected "cameras with 50 or more megapixels geared perfectly for studio shooters" I don't see a reason either why the Olympus OM-1 Mark II wasn't included, even with reserves, as most of the time it can achieve a 50+ MP output in a studio shoot. Dpreview itself (when reviewing the OM-D E-M5 II, considered "the camera not only competing with the Nikon D810's level of detail capture but comfortably exceeding it in terms of color resolution".

Link | Posted on Nov 16, 2016 at 12:37 UTC as 47th comment | 5 replies
In reply to:

Valiant Thor: So, would the photo and video quality on this camera be about the same as the new Lumix G85 (with a comparable lens on the G85)?

Hardly. A m43 sensor should deliver a 1EV advantage in signal to noise ratio with all else being equal, because it has about twice the area of a 1" sensor.
Besides, IIRC the G85 doesn't do a one to one crop on 4K, so the advantage on 4K video should be roughly another stop.
Of course, I'm just pulling all this out of my head and it needs confirmation.

Link | Posted on Nov 14, 2016 at 12:01 UTC

There is something wrong with these samples.
How can the RAW sample have less detail than the same JPEG?
There is an horizontal line in the JPEG that is missing from the RAW (top center).
Also the feathers don't quite match (bottom left).

Isn't the JPEG derived from the RAW? Were these takens at different times?

Link | Posted on Oct 26, 2016 at 10:02 UTC as 13th comment | 3 replies
In reply to:

Lee Jay: "Anyone who manages a large image library knows how important keywording and captioning are for categorizing and keeping things searchable."

I have around 400,000 images, and they aren't keyworded. And I can find them.

I'll let you guys in on a secret: folders!

Link | Posted on Sep 27, 2016 at 07:46 UTC

As usual with bleeding edge technologies, the porn industry will be the first to make good use of it.

Link | Posted on Aug 4, 2016 at 10:50 UTC as 10th comment

First time I've seen a really cool technology where the best demo is in the video credits.

Link | Posted on Aug 4, 2016 at 10:47 UTC as 11th comment
On article Behind the shot: Praia da Adraga at blue hour (78 comments in total)

Very investing article on logistics.
The preparation tips are very helpful.

I don't want to give an artistic note because I've seen dozens of photos of this place, indeed I have friends that shoot it more than half a dozen times a year. Usually they don't drive for more than 30m, though.

Link | Posted on Jul 17, 2016 at 15:46 UTC as 18th comment | 1 reply
On article Behind the shot: Praia da Adraga at blue hour (78 comments in total)
In reply to:

fmian: Good thorough description of your thought process. I feel your post processing technique has more substance than the resulting image however.

True story regarding Snapseed, @fmian.

Link | Posted on Jul 17, 2016 at 15:38 UTC
On article Behind the shot: Praia da Adraga at blue hour (78 comments in total)
In reply to:

Leonp: As with most of this high contrast, high color, amazing and beautiful, National Geographic-like, landscape photography you best do NOT visit the site for a holiday because it does NOT look like on the picture.

I concur.

Link | Posted on Jul 17, 2016 at 15:33 UTC
On article Medium-format mirrorless: Hasselblad unveils X1D (1188 comments in total)

Who manufactures this sensor?

Link | Posted on Jun 22, 2016 at 13:15 UTC as 293rd comment | 3 replies
In reply to:

FelixCatana: I came here for the comments. Guess I'm too early :)

Come back. It's worth it.

Link | Posted on Jun 17, 2016 at 10:43 UTC
In reply to:

CreeDo: Played around with this lens a little while back... not bad. Sharpness is good across the frame and it's reasonably handholdable for birds in flight. Not quite as fast as a Canon 600mmL lens but the lens hood is cheaper at least. Good weather sealing too. Having a carrying case for the lens cap is a nice touch.

Cons: no clickless aperture making it useless for cinema, and focusing ring is a little stiff. Tripod collar has a weird mount so I couldn't put it on my Promaster travel tripod.

Overall pretty decent but I'm gonna hold off until I see the DXO rating.

My only doubt is if you changed one single word before pasting from where you got it. ;)

Link | Posted on Jun 17, 2016 at 10:32 UTC
On article Pentax K-1 Pixel Shift Resolution: Updated Field Test (211 comments in total)
In reply to:

ronniemac: Well researched and conducted review which unearths some of the difficulties Pentax owners have with raw developers not yet quite delivering - or not at all in Adobe's case. Clearly moving water is not ideal for pixel shift, even if PDCU has a fair crack at it. Rustling leaves can sometimes be problematic, but for other subjects, including landscape, pixel shift technology takes image resolution to a higher level. Reworking the bayer pattern sensor so that each photo sensor cell reads all colours of light is a neat idea, smart thinking Pentax!

The upgrade of PDCU provides Movement Control for the K-3 as well as the K-1! As pointed out in the review above, it can sometimes improve on images straight out of the camera. The program works perfectly with Window's 10. Although by default it over sharpens and over saturates relative to LR, this is easily controlled with user settings making for easy creation of tif files for processing and cataloguing in LR.

Good work, DPreview guys!

I was about to say that it wasn't Pentax which came up with this because the Olympus EM-5 II was doing it before, but then I remembered an arcane model doing pixel shifts around 15 years ago.
A little investigation came came up with this: Ricoh, 2000.
There you go, full circle.

Link | Posted on Jun 6, 2016 at 11:37 UTC
On article Waterfails: We test Pentax K-1's Pixel Shift (225 comments in total)

Can the camera bracket a Pixel Shifted image and a regular exposure?
If so you could take great benefit from both in post.
BTW, Olympus's High Resolution Mode doesn't suffer from so much artifacting either because they have figures it out much better or because their 8 stacked images are doing half pixel shifts, which theoretically is above Nyquist.

Link | Posted on May 31, 2016 at 22:45 UTC as 76th comment | 1 reply

"the 1080p resolution of the 5.7-inch display cannot quite keep up with the Quad-HD displays of most competitors"

I'd say that you got your priorities wrong. I also thought that dpreview had learned something from the megapixel race. This is so last decade...
OTOH I'll thoroughly enjoy the extended battery benefit, which is the #1 priority in most consumers list, BTW.

Link | Posted on May 30, 2016 at 18:04 UTC as 25th comment
On article Looking Sharp: A focus stacking tutorial (224 comments in total)
In reply to:

duartix: All this or send all the RAWs to PhotoAcute, wait 2m and then color tune to taste.

It's not a one trick poney.
It does almost anything than you can do with multiple stacks: Superresolution (à la Olympus), Noise Averaging, Focus Stacking and Object Removal.
The real thing about it is Radiometric Alignment. It does miracles on shaking vegetation and it's second to none.
I haven't paid zit for it's license because I've profiled a few camera/lens combinations. It used to take me from20-30m.

Link | Posted on May 30, 2016 at 07:36 UTC
In reply to:

ZorSy: The fact it goes into ISO1000 territory and still produces enough details should not be ignored (for a smartphone). RAW isn't as impressive though but wouldn't expect many users would care anyway. I still prefer the LG5 approach in 2-camera setup as much more usable and fun to have on smartphone.

RAW isn't impressive? Have you compared the P9 RAW with the P9 JPEG?

Link | Posted on May 29, 2016 at 23:49 UTC

What can I say? The RAW capture image quality makes me forget it's a smartphone, but then, the JPEG engine makes me remember it is.

But then again, RAW does not work with the B&W camera ?
Any reasons not to fire the SW team?
Seriously, this is probably the biggest waste of hardware I've ever seen in mobile industry.

Link | Posted on May 29, 2016 at 23:48 UTC as 16th comment
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