July 29, 2014, 05:30:22 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - quartzie

Pages: [1] 2
1
Lens profiles in Lr and Camera Raw are tied to both the body and the lens, plus they exist in two versions (JPEG and RAW). You'll only see the automatic combinations that match your particular photos. In general Adobe's bundled pack of profiles only considers brand matches (Sigma lenses on Sigma bodies, etc.)

Effectively, most Sigma lenses have RAW adjustment profiles for Sigma, Canon and Nikon bodies - these were actually provided by Sigma itself and install with ACR/Lightroom by default.

If you want to use a RAW profile for your JPEGs, there's a small hack you need to do - find the matching RAW profile of your camera + lens, make a copy of it (delete the "RAW" from the file name, for example), and replace all iterations of CameraRawProfile="True" with CameraRawProfile="False" within the new copy.

The profiles are ".LCP" files which contain XML formatted instructions - they can be edited using Notepad.
You can find yours at C:\ProgramData\Adobe\CameraRaw\LensProfiles\1.0  on your Windows PC.

NOTE: This is not a perfect solution and if your camera already applies some distortion/vignetting correction to JPEGs, you need to turn it off before using the profile to avoid corrections being applied twice. That said, even the "RAW" optimized profiles help a lot, especially with distortion/vignetting.

2
EOS Bodies / Re: Reminder: Canon EOS 70D Launch Tonight
« on: July 01, 2013, 07:13:11 PM »
You realize that there doesn't appear to be much if any sensor improvement.

I sincerely hope not. The 7D sensor is really quite below par when compared to modern crops from competition (hello, Sony). While I generally like my 7D, I cringe when I need to take pics in bad light...

3

I have since moved to an Ivy Bridge 3770K (with HT) and noticed the CPU would run at 40-70% and didn't think much of it.  I never did a comparison between it and the 2500K.  But I was just playing with what I have and notice that with HT off an export can be much faster.
 

You need to understand that even with Hyperthreading the CPU only has the same number of full processing cores as without it. Hyperthreading gives you the ability to re-use some parts of each core which are not being utilized by the thread running on that core - the CPU virtually splits each core into 2, but one of them cannot perform as fast.

This may help when you have a very high number of active threads, but when your actual threads do not exceed the number of HW CPU cores, Hyperthreading is NOT going to help.

What Adobe might need to do is some optimization to run primarily on the "real" cores and jump to HT only when you run a large number of concurrent processes.

That said, since you already have a quad-core, HT wasn't going to help much as export threads in LR remain mostly linear. You may see some improvement if you run, e.g. 4-8 exports at once, but that's probably going to tax other parts as well.

4
Just curious - what is focus peaking?


Try google, your friend (mostly)....

Focus peaking is a focusing aid designed for manually focusing video/live view - it highlights sharp edges in a picture using a contrasty color/pattern to emphasize the areas which are in focus.

When used with video, it allows you to smoothly change focus to a particular object without going back-and-forth as an autofocus would.


5
Portrait / Re: My photos look so dull
« on: May 29, 2013, 09:09:08 PM »
Its not about the composition or anything but the lighting in this just looks so good to me. It looks so bright and the shadows are so soft. Like so awesome contrast and colors.

Thanks already

Since you seem correctly fascinated by the light in the photos, here's my 5c:
a) look at flash photography - but be aware that the color of your flash will often clash with other sources of light.
b) try to look at light modifiers, especially a very simple, cheap and effective one - bounce board. There are several collapsible reflectors  available online, with a white/silver/gold coating for changing the expression of the light. These will do wonders for all those dark facial shadows, while keeping the soft light quality provided by an overcast sky. If you use the golden film side, you can get very nice, warm light even under a dreary English sky.
They also rarely run out of batteries :D

6
Canon General / Re: Canon Experience Stores Coming Soon [CR3]
« on: January 11, 2013, 11:49:09 AM »
There's been a "Canon Experience" showroom in Taipei, Taiwan for about two years already.

It has most of the current camera bodies (Rebels, 5d2, 5d3, 6d, 7d) available for testing, though the lens pairings are set and the staff doesn't want to attach any of the other lenses on show in the store. There's a small stage with long white tele Lenses for those of us who are never going to use them in real life. Initially, there were a couple of 1d3 bodies attached to those, but they've been switched for 5d2s.

All the company's compact cameras and most printers are on show as well and the local distributor uses the storefront as a service and RMA counter.

Interestingly, though - the store doesn't actually SELL anything  ;) .

7
Pricewatch Deals / Re: Deal: Canon EOS 5D Mark III Body for $2899
« on: November 16, 2012, 01:42:10 AM »
Any chance you guys could show just a little humility and remember we’re not all privy to the American advantage  >:(
Any chance Adorama would open up shop in the UK please  :'( :'( :'(

That's the price we pay for mandatory 2-year warranty (and a lot of other extra taxes). Not pretty, but may be worth it to some.

8
Lenses / Re: Minimum Aperture
« on: September 28, 2012, 02:45:57 PM »
It's typically a matter of image quality - and depends on lens design and intended use.

It has to be said that a suitably small aperture affects image quality because of diffraction patterns when the opening gets small enough. This can be optimized when the lens uses a high quality optical formula (such as the 70-200, but for worse lenses, the diffraction noise effectively precludes such small apertures, as image sharpness drops drastically.

9
I really wonder what a comparison of 1D-C footage would look like. Canon should be able to pull out more color detail using different raw processing, but I'm skeptical about matching the dynamic range.

I'm not forgetting about the 5x higher price that Canon is asking for 4K video, but I wonder if the quality is really there...

10
IMHO, there is a noticeable difference in lighting color - as evidenced by the reflection in the windshield.
One minute can make a huge difference during sunset, and given that the shots aren't perfectly aligned, I'd wager that each camera measured the light somewhere else.

The difference between their high ISO performance is vast, but I'd prefer to see a slightly more reasonable exposure. Pulling 1/6400s just to be able to use ISO 25600 during the day seems a bit outlandish and quite unlikely in most settings.

11
EOS Bodies / Re: Hands on 6D AF comparison
« on: September 20, 2012, 02:26:43 PM »

You can't test AF like that. The hands-on make you understand that it work fast, but will it work well? Who knows. Certain is that unless Canon is using a new, ground-breaking AF technology (in a bottom-line camera?), then the performance can be easily guessed.

Overall the 5D2 is a devil-you-know, is better built, and better specced for photos. And costs less (even less if you buy it used) and is available already.

Personally, I would also add the "in your face, Canon!" factor :)

I'm giving Canon the benefit of doubt. Naturally, we don't yet have enough data to fully evaluate the AF performance - specifically, in what modes does it perform best, and what is it's tracking performance.

However, having fast response times in a dark setting without an assist light does actually sound like a major improvement and if it does perform this well using all of its 11 points, many photographers could be easily satisfied with that.

Yes, there are some features I'd have liked in the camera at this price level, since I hail from the 7D - but AF performance is not just about the number of focusing points.

12
EOS Bodies / Re: 6D or 5D Mk II
« on: September 17, 2012, 04:52:38 AM »
A hidden jewel might be present in the built-in Wi-Fi with Android/iOS remote shooting functionality. I believe that people who love to shoot technically challenging scenes, timelapse and macro photography may find the 6D more than adequate - they rarely use AF anyway.

13
EOS Bodies / Re: 6D or 5D Mk II
« on: September 17, 2012, 04:17:11 AM »
I'd wait for real life ISO performance and comparison of the AF systems, otherwise the two cameras appear quite comparable. No mention of AFMA on 6D, which may be an issue on FF sensors - but there's simply not enough info available yet to make an informed decision.

14
As you can see, the new EF 24-70 f/2.8L IS II is an absolute resolution monster. It really looks like it’s the best zoom Canon has ever made optically. There is a small note that distortion at 24mm is slightly worse than version 1, but that’s what software is for. :)

Now if it only didn't cost both arms and a leg...

15
EOS Bodies - For Stills / Re: OUT: DSLR // IN: Micro 4/3
« on: August 20, 2012, 03:48:58 PM »
matter of priorities.

If you like the feel and operation of m4/3, go ahead, but I prefer the full frame IQ and DOF. I wonder why did you own a TS-E if you are not going to miss it.

Also - if you shoot anything that moves fast, mirrorless is still NOT the way to go.

If the key limiting factor for you is weight and size of your gear, then you might actually win by going small.

Pages: [1] 2