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Messages - iKenndac

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1
...when it is possible to utilize more than 1500 processors on latest NVIDA cards for processing instead of just 4 or 8 cores on main CPU.

Just to level expectations - just because modern GPUs have 1500+ cores doesn't mean that you'll gain a 375x increase in performance over a quad core machine by utilising them.

GPU cores are highly specialised in the things they do well. Additionally, there's quite a large overhead in getting your data into the GPU for them to work on it to begin with, then getting it out again at the other side. It's not just a case of enabling CUDA or OpenCL in your app and watching the numbers fly.

Of course, Adobe can and should be using these technologies for both RAW decoding and their entire pipeline. Remember, RAW decoding is only part of it — they decode the RAWs, then they individually apply every edit you've done to get the final output. This likely means paging data in and out of the GPU multiple times, and you need to do a lot of work to ensure you're taking the most efficient path — perhaps one adjustment is actually really fast on the CPU already and the overhead of getting everything into the GPU isn't worth it in that instance.

LR does a good job of faking speed by creating previews, but the main performance problems are while you're modifying edits. Doing this well is a big task, and I really hope the delays are because they're taking the time to do it right. Bash Apple's Aperture all you want, but their imaging pipeline absolutely screams since it's a mature GPU-accelerated API.

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I've been using lightroom for several years and whilst it's a very useful and increasingly advanced application...it's as slow as molasses and needs GPU support urgently!  When you're ploughing through a 20K image edit, every second counts and the rendering times are very laggy when applying filters and retouching, even on the most advanced systems.

If LR6 is nothing but LR5 optimised for performance and GPU rendering I will be so happy.

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Software & Accessories / Re: Photo Editing Laptop Recommendations
« on: January 13, 2015, 05:09:00 PM »
The last week I bough a new laptop Asus G751. Specs are the following:

1) Monitor - 17.3'' IPS FHD 1920 x 1080 anti-glare

Such a large display with such a tiny resolution makes me so sad. One very huge benefit of the modern Apple laptops is the displays — the 15" Retina Macbook Pro has a 2880x1800 display. Even the 13" has 2560x1600. They're absolutely beautiful — you see so much detail when working with photos, it's amazing. The pixels on a 17" 1920x1080 display are like LEGO bricks in comparison.

I'd argue that the display is one of the most important aspects of a modern photo editing rig. Any sufficiently modern, non bargain-basement machine will have enough CPU and GPU and RAM to run LR5 just fine.

The statement above that Lightroom is the same depending on the OS you run is very true. That's also a plus — you'll be able to use LR5 on a Mac just fine if you're used to Windows and you get to use that beautiful display.

4
Canon General / Re: new 70d, wrong manual, no plastic wrap
« on: October 23, 2014, 07:32:16 AM »
I have never used a shutter count service.  Do all brand new cameras have zero shutter counts?

I very much doubt it. Just like a new car comes with a small number of miles on it, I'd like to think they test the shutter at least a few times at the factory. I'd actually be a bit suspicious of a zero shutter-count camera.

5
I've been using Yosemite for a few months as the Developer Previews progressed, and by and large things work well - considering the magnitude of the UI changes, it's pretty impressive. Lightroom and Photoshop CC 2014 work perfectly fine.

That said, if you use EOS Utility you'll want to hang back for a bit until it's updated:




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Software & Accessories / Re: Reco Config for Mac Pro (2013)
« on: January 02, 2014, 04:20:32 PM »
I've hear rumors you *might* could upgrade the CPU yourself, but I've not confirmed that yet.
It uses the standard LGA 2011 socket and a standard Xeon configuration. (Source)

But for the GPU, since they are soldered into the thing, I'd max it out on purchase.
The GPU isn't soldered on, but it does use a proprietary connector (same source as above) that will make any future upgrade options pricey. I maxed out my GPUs.

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Software & Accessories / Re: Canon Shutter Actuation App for Mac
« on: October 23, 2013, 08:49:24 AM »
Is it normal/expected/possible that cameras leave the factory with some actuations on them already? Quality assurance testing, maybe? What's your experience?

Yup. I'd actually be worried if my camera arrived without anyone bothering to see if it works! You can't buy a new car with 0 miles on the clock for similar reasons.

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Software & Accessories / Re: OS X Mavericks
« on: October 23, 2013, 08:45:49 AM »
BTW if you have upgraded and use the current EOS Utility, let us know about workability & stability.

I'm a software developer by trade and have been running the 10.9 developer previews on one of my machines since June. The version I have installed "Version 2.13.10 (2.13.10.0)" works just fine for me with my 6D over Wifi and USB. However, I'm a hobbyist and most likely not as demanding as you guys with remote shooting, so take my "evidence" as anecdotal at best.

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Software & Accessories / Re: OS X Mavericks
« on: October 23, 2013, 06:57:07 AM »
Yikes.


Adobe needs to address this ASAP.

Thankfully, you can just quit the Creative Cloud application and everything will still run fine — you can then just launch it to check for updates every so often.

And as for paul13walnut5, "Production environment" is a very standard term for the computer setup you use to do work in — i.e., something that needs to stay operational. You don't install stuff in your production environment until you're reasonably certain it won't cause problems. A sandbox is a setup you can use to test out new stuff without worrying about the consequences of it breaking. It might be a spare computer or a virtual machine, for instance.

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Lenses / Re: Are we in a rebate "drought"?
« on: September 15, 2013, 01:19:11 PM »
There's a rebate going on right now in the UK. £170 back on the 16-35mm f/2.8? VERY tempting…

11
If you want to use the same applications as you do on a PC, your only option is one that runs Windows — like the Microsoft Surface Pro. iPads, Android tablets like the Nexus 7 etc etc won't run Windows software.

Graphics, performance and RAM won't be of a concern on any modern Windows tablet unless you want to do full-blown Lightroom editing on them.

12
PNG has it's applications, and better resolution and color information (with higher file size as the tradeoff)... is one of them.

24-bit PNG has 8 bits per channel, same as JPEG. There is no more colour information in a PNG than a JPEG.

PNG is lossless compression, where JPEG is lossy. In terms to quality:filesize, PNG's compression algorithms do better at simple graphics with sharp edges and uniform colours, where JPEG is better at your typical photograph.

Even the PNG website (under "Typical Usage") says that JPEG is better for this kinda stuff:

Quote
Note that for transmission of finished truecolor images--especially photographic ones--JPEG is almost always a better choice. Although JPEG's lossy compression can introduce visible artifacts, these can be minimized, and the savings in file size even at high quality levels is much better than is generally possible with a lossless format like PNG.

If you're going to print your photo, then lossless is what you want. For a tiny version that's going to be displayed on a web forum using browsers already established to be terrible at colour management on crappy 6-bit displays, a big PNG file is probably overkill. If you're going to do that, you may as well just post up DNGs and be done with it.

13
6D Sample Images / Re: Anything shot with a 6D
« on: June 26, 2013, 04:21:08 PM »
Went to a woodland obstacle course this weekend. Got loads of great photos with my 6D + 70-200 f/4 L (no IS) - here's one of my favourites.


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EOS Bodies / Re: 6D Autofocus not impressive
« on: June 26, 2013, 03:25:54 PM »
I bought my 6D earlier this year, conscious of the fact that the AF being underwhelming on paper. I've been loosely following this thread and similar ones online, seeing people say the 6D's AF is anything from "completely useless" to "actually, pretty good!". Most photos I take are of stationary things, so it's no big deal.

This weekend, I visited a place called Go Ape — an obstacle course through the trees in a British forest. I was taking photos with my 6D and 70-200 f/4 (no IS) and was kinda worried since the weather was typically dark and grey, we were under tree cover and I had to take photos people people sliding down zip lines at fairly high speed.

Thankfully, my fears were unfounded. The AF in the 6D performed amazingly well and I was getting some superb shots! Sure, the AF isn't as good as the 5D3's, but it's way better than a lot of posts and articles would lead you to believe.


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EOS Bodies - For Stills / Re: Geotagging - best method in LR
« on: June 13, 2013, 03:16:48 PM »
As the poster above me said, you can get a standalone GPS unit and keep it in your bag. However, you don't need third-party software — Lightroom (and Aperture, if that's your thing) can import files from these devices directly and geotag photos with them.

I have a 6D now so I'm set, but before I used a rugged Garmin device I also use for hiking and bike riding. It's a bit clunky, but there are little standalone devices like this.

Finally, you can get apps for your phone that do this now. They'll drain the battery, though, but if you're only out for an hour or two they'll be fine. The key thing to look out for is the creation of GPX files — if you have a device or app that generates GPX files, they can be imported straight into Lightroom or Aperture without any extra software.

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