duartix

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

Comments

Total: 320, showing: 1 – 20
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On article Medium-format mirrorless: Hasselblad unveils X1D (1174 comments in total)

Who manufactures this sensor?

Link | Posted on Jun 22, 2016 at 13:15 UTC as 292nd 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 (209 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.
http://www.dpreview.com/articles/0223806629/newricohs
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 (218 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 12th comment
On article Looking Sharp: A focus stacking tutorial (218 comments in total)

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

Link | Posted on May 29, 2016 at 23:22 UTC as 47th comment | 3 replies

Extra, extra!!!
Adobe wraps up a functionality that's been available in PS for 3 years and gives it a new name.
Read all about it!!!

http://www.lightstalking.com/how-to-use-content-aware-fill-in-photoshop/

Link | Posted on May 27, 2016 at 11:01 UTC as 23rd comment
On article Huawei launches Honor V8 with 12MP dual-camera module (20 comments in total)

Couldn't give a crap about the design copy discussion.
Any more information on how does this double camera module work?
Double exposure for 1EV PSNR benefit? HDR? Focus stack? Stereo? Superresolution? Monochrome like the P9?

Link | Posted on May 11, 2016 at 10:51 UTC as 6th comment
In reply to:

PhilPreston3072: Yay for Pentax! Are we looking at the next phase in digital cameras? Pixel shift tech gives even better sharpness than the 50MP Canon 5DsR. Even the silver coins retain their circumferential dots. Let's not also forget no more aliasing and moire (as far as I've found).

FantasticMrFox:
"so it hardly rings the bell"
I disagree. Ringo's bell bottoms are clearly improved.

Link | Posted on May 6, 2016 at 13:59 UTC

Ringo has clearly upgraded his pants!
On the other hand, someone should tell him that bell bottoms aren't fashionable anymore.

Link | Posted on May 6, 2016 at 13:56 UTC as 54th comment | 1 reply
In reply to:

malabito: Can someone expalin to me what's so wrong about the rent fee of Adobe? I work with software and usually you pay a rent fee as in Adobe, or pay for the software but still need to pay a monthly or yearly rate for service and updates, after the first year, is call service contract. Is people really expecting to pay 150usd for a software and have it updated for the rest of the life every time a new release comes by?

The hook is there when you need to rework any picture. Or simply export with a different recipe because you decide to change the color profile or just need a different resolution.
If you don't pay up, the work you have done is not in your hands anymore, you're left with just an outdated output.

Link | Posted on May 2, 2016 at 11:15 UTC
In reply to:

duartix: This is an elaborate joke for sure.

Snapseed is as fast as anything else out there, opens DNG RAWs, provides live editing in realtime, includes a big chunk of Nik filters, with it's touch interface it's light years ahead of anything else when it comes to interface, and it will also run on my smartphone.
AND IT'S FREE!

The catch is it's still not batch oriented, but you can batch develop each image while already working on the next. I'm sure this is no workflow for Pros that develop thousands of pictures a month but for personal use, this is "daxit".

Goodbye PC editing...

@Eric
Surely it's not comparable...for 0.1% of my needs. For the other 99.9% it is now, since I found out it does layer edits.
It also makes me edit 5x faster, and that includes filters which would typically double my editing time on a PC. The results are indistinguishable from Capture One.
And it has blown away the strain my wrists. I can't put a value on that.

@Remember the adage on the best camera you have? Well, I guess it can extend to a RAW developer.
I'm not saying the smartphone will be my main workbench (it is for now), but I can tell you the workflow is still much faster than on my PC. In fact, I'm sourcing a 12" tablet with Android (maybe Windows too) for this alone.

My days of keyboard/mouse/touchpad + Capture One are definitely over.

Plus, it has bought my CSC back to life which was fighting an uneven battle in good light to my smartphone. Again because of the adage. :D

I guess you need to try Snapseed to figure how disruptive it is. :O

Link | Posted on May 2, 2016 at 11:04 UTC
In reply to:

malabito: Can someone expalin to me what's so wrong about the rent fee of Adobe? I work with software and usually you pay a rent fee as in Adobe, or pay for the software but still need to pay a monthly or yearly rate for service and updates, after the first year, is call service contract. Is people really expecting to pay 150usd for a software and have it updated for the rest of the life every time a new release comes by?

It's a hook, you know? You're not in control anymore.

Link | Posted on May 1, 2016 at 21:29 UTC

This is an elaborate joke for sure.

Snapseed is as fast as anything else out there, opens DNG RAWs, provides live editing in realtime, includes a big chunk of Nik filters, with it's touch interface it's light years ahead of anything else when it comes to interface, and it will also run on my smartphone.
AND IT'S FREE!

The catch is it's still not batch oriented, but you can batch develop each image while already working on the next. I'm sure this is no workflow for Pros that develop thousands of pictures a month but for personal use, this is "daxit".

Goodbye PC editing...

Link | Posted on May 1, 2016 at 21:27 UTC as 12th comment | 6 replies
In reply to:

nicchiaphoto: why is it that at very high ISOs the image quality of the D500 looks almost the same (just slightly slightly better) to the a6300 IQ when in RAW mode, wile instead in jpeg the colors and performance of the d500 is ten times better than the a6300?? Even if in raw mode they are similar, they perform much differently in jpeg. Could it just be because of different processing?

Have you checked if the widget is really changing the ISO for all cameras?

Link | Posted on Apr 27, 2016 at 14:55 UTC
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