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Messages - SambalOelek

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16
EOS Bodies / Re: Canon EOS M Specs
« on: July 22, 2012, 10:11:06 AM »
don´t you think the AF will be as good as 5 year old cameras who do wildlife shots pretty well?

Are you referring to five year old cameras such as the 1D III or the 40D? If so, my answer would have to be a resounding "heck, no!"

17
EOS Bodies / Re: Skin cover for 5d3 / 1dx
« on: July 06, 2012, 04:28:56 AM »
I've never seen the point in screen protectors for a camera. #1, my screen never gets scratched, and thats with professional use, #2, if it does get scratched... so what? The screen doesn't take the photo. Who cares? The camera is a tool. A carpenter doesn't put a protective cover on his hammer so the nail doesn't scratch it up. :P

Resale value :)

I heard the 5D Mark III screen would be more scratch-resistant. Not so.

18
Technical Support / Re: How much space to get to macro?
« on: July 04, 2012, 03:37:34 AM »
Lovely project  - go for it!

I hate to spoil some of the fun but a macro used wide open is not very usable for anything else than abstracts. DOF is very thin. So you need to be able to set aperture somehow (that means electronics)

Dismounting the lens while pressing the DOF preview button will allow you to pre-set the aperture (causing a very dark VF if set much below f/4).

19
Lens Gallery / Re: 40 Shorty Test Shots
« on: July 02, 2012, 06:48:57 AM »
Seems we have two camps forming here. Those that have it and love it, and those that haven't got and can see nothing but problems even though the reviews praise it for the low price and high IQ

And a third camp for those who have it and appreciate the size and optical quality, but are dissatisfied with the AF and the quirky manual focusing. :)

20
Pricewatch Deals / Re: 5D Mark III Special Kit from Adorama
« on: June 29, 2012, 06:06:41 AM »
Is this a way of clearing old stock, isn't the MK3 able to way out perform those lenses?

The 18 megapixel APS-C sensors have way higher pixel density, so they are a lot more demanding in terms of center sharpness. It's not even close, the Mark III has about the same pixel density as the 20D.

The standard kit lens for the 5D Mark III is the 24-105 which, IQ-wise is not in the same league as the 50mm f/1.4 @ f/4.

21
EOS Bodies - For Stills / Re: upgrade to a 7D?
« on: June 27, 2012, 08:29:38 AM »
I do a lot of night time, night time HDR, panoramic photography and just wondered if the 7D would be up to the job for this.  I often do long exposures, in a few shots i've done 20-30 minute exposures on a beach at night and while the 550D was good it wasn't quite perfect, so I wouldn't want to upgrade and lose that performance i have currently.

One thing that may be worth mentioning is that the 7D LCD is slightly inferior to the 550D's in terms of resolution and aspect ratio. That said, the 7D LCD is of course very good.

On the other hand, the 7D viewfinder is a huge upgrade. Once you've grown accustomed to pentaprism viewfinders, the entry-level OVFs seem tiny in comparison.

22
EOS Bodies / Re: 5D Mark III vs 5D Mark II Raw Image Quality
« on: June 26, 2012, 07:41:10 AM »
So yes, he is right that some NR was inadvertently applied by ACR, not you, and that you can knock it from 25 to 0 and get more noise, but he is wrong about how much noise and what kind of noise...  Minimal difference in color noise between 0 and 25 and it is luminance noise more than anything else, which is to be expected, and cleans up quite nicely.

If you are referring to what Sambal Oelek said about the cat at ISO 6400, I'm not sure I agree, but maybe I got you wrong. I'll try to post three 100% crops: one without any NR, one with the default 25 chroma NR, and one with 69 (!) luminance NR without chroma NR, which makes the chroma noise easily distinguishable form the luma noise.

What I was expecting was to see a lot more color noise (chrominance noise or chroma noise for short), similar to filo64's result. Luminance noise is already visible in the jpg (the "graininess" of the OOF areas), so i figured that at least some chroma NR was being applied by the RAW converter.

Thanks to kevl for uploading the file.

23
On the other hand, Canon, along with other Japanese electronic manufactures are too dumb to come up with intelligent firmware because they still run those firmwares under DOS! A real OS with multitasking kernel is the foundation to software intelligence. Look at smart phones, they run OSX (iphone), Linux Kernel (Android) and Window Kernel (Windows Mobile). The OS limits how complicated your software layer can ever be.

Most contemporary Canon DSLRs (and many compacts) run DryOS, a RTOS (completely unrelated to DOS, by the way). This limits costs compared to licensing another OS. None of the operating systems you list are real-time operating systems, and would not necessarily be suitable for Canon DSLRs. The DryOS kernel fits in 16kb of memory, the Android kernel is, what, 2MB?

24
EOS Bodies / Re: 5D Mark III vs 5D Mark II Raw Image Quality
« on: June 21, 2012, 07:59:49 AM »
I've been all though LR4 and can't find any way to set what you are talking about. Color Noise Detail is set at 50 by default in LR4, but doesn't get applied unless you adjust the Color Noise slider.
A setting of "25" is pretty agressive NR and would make the cat look plastic.

In that case, would you mind publishing the RAW file or sending it to me privately? I've seen correctly exposed ISO 400 files with more visible chroma noise.

25
EOS Bodies / Re: 5D Mark III vs 5D Mark II Raw Image Quality
« on: June 20, 2012, 02:36:42 AM »

Looks like there is quite a lot of Chroma NR being applied to this picture. ISO 6400 with absolutely no NR looks very messy, but it does clean up quite nicely, like in this picture.


Here is the shot as it was taken, no profile correction, no strong contrast curve, and no edit to her eyes. Just like the last time I posted it there is NO noise reduction at all. This was shot in RAW with the faithful picture style.

ISO 6400 only looks poor with the 5DIII if you are under exposing. In this case I slowed the shutter to 1/50th, and had the image properly exposed in camera at ISO 6400. Under exposing at any ISO and then using Lightroom to make up for it will make any file look like junk.

The worst of noise lives where images are improperly exposed. I've only shot with the Mark II momentarily so I can't speak to how it performs, but my T3i behaved just exactly the same. Of course it can't shoot at 6400 and get a usable file in any sort of light.... but I am able to make usable files at 3200 with it.

Kev

I don't use Adobe's raw converter myself, but the XMP of your file shows
ColorNoiseReduction="25"
ColorNoiseReductionDetail="50"

25 is the default Color noise reduction applied to RAW files in Lightroom. If you reduce this value to zero, you should see some pretty colors :)

Hope you'll update your posts with the result. I'd be interested to see how much noise is actually present.

26
EOS Bodies / Re: 5D Mark III vs 5D Mark II Raw Image Quality
« on: June 19, 2012, 09:21:17 AM »
Here's a real-world shot at ISO 6400 that I took tonight for a friend with my brand spanking new 5D3. Shot in RAW, no noise reduction added (camera set to Standard, but I don't think that affects RAW at all), 180mm, ISO 6400, 1/50th, and  f2.8.

Only edits are lens profile (70-200 2.8L), strong contrast curve and I enhanced her eyes in Lightroom 4.

I know this is higher ISO than you were talking about, but I think it may still be helpful.

Kev

Looks like there is quite a lot of Chroma NR being applied to this picture. ISO 6400 with absolutely no NR looks very messy, but it does clean up quite nicely, like in this picture.

I have shot SxS comparisons between the Mk II and III at all ISOs. I'd say the difference from 50-800 is negligible. At higher ISOs, the amount of (unreduced) noise is actually quite similar, but the Mark III files look much better after NR. IMHO

Even at very low ISO's, if you push the exposure in post, you will see ugly blotches of color noise in the shadow areas in Mark II images. Mark III files have the same issue, but it's slightly less prominent.

27
Well, then I guess the 300 f2,8 L IS sucks bigtime, because mine missed by 30 meters aiming at 100 meters, and that was at +20.... It needed hardware calibration, and when it came back I adjusted it to +6 and it was dead on. Calibration doesn't have anything to do with "bad" or good lenses at all. It has to do with tolerance. And in my experience you can go 10 and 10 steps at the time and see no difference, heck both my 50's where very close, but not perfect (like my other lenses) until I ran the FoCal software, it only adjusted them 2 steps from where I was, but it made a HUGE difference in stabillity and accuracy. Farther and farther adjustment doesn't always make it better and better, it's the RIGHT adjustments you need.

Just checked, and it seems the 50 and 135 are the ones that are the least adjusted both on my 5d3 and my gf's 5d2. My 24 is at +16, but it hits perfect. I ran it through FoCal, and it gave me +16...

35 is at -11 but also hit perfect.

That's a non-sequitur. The 50L focus shifts (a separate, but very related issue) is caused by the lens' undercorrection of spherical aberration, in other words a design flaw (or "feature", if you prefer).

28
Technical Support / Re: removing dust from sensor
« on: June 18, 2012, 06:08:20 AM »
I've used Sensor Swabs with great success. I breathe lightly on them to get a wee bit of moisture (tip from Bryan Carnathan at the-digital-picture.com) and give the sensor a few swipes. Repeat if necessary.

I believe Canon does not recommend using anything but a blower if you're cleaning it on your own, so FWIW you may void your warranty...

29
During my tests with the 50 1.2 for portrait uses, I found the AF for the 50, terrible.  Sometimes, maybe 20% it would lock on and be awesome, sometimes, it would be close, but just off, and sometimes, the camera would show focus confirmation, but image would be blurry as heck.  Plus the MA was so off I had it on the max MA to get it in focus for the few shots it got focus.  When i tested the 35 1.4, on the same body as the 50 test, I got a lot more in focus in more demanding situations.  The only time the 35 was OOF was when shutters were too slow because it was too dark, which isn't a lens issue, but a camera/operator issue.  Dont get me wrong, I wanted to love the 50, but for the sample I tested, it's too unreliable.

How fair is that? If you had å copy at Max out MA, you haven't got a properly calibrated lens, and of course that won't work. I didn't get any stability or accuracy with my 50's before i used REIKAN software. But now, the 50 L is just fantastic, and as you can see from my bottom signature, I have the others to compare with. It isn't perfect, but it's what's closest in the 50 focal...

My experience is similar, and I probably should have my own sample calibrated. It's especially frustrating because I've never encountered any such problems with the 35L (two samples), 85L, 135L (three samples) or 50 f/1.4 (3 samples) for that matter. Slight MA needed, sure, but nothing like this.

30
EOS Bodies / Re: CANON 1Dx - Action images - UEFA EURO 2012™
« on: June 15, 2012, 08:24:41 PM »
I am a relatively new photographer, unlike a pro like you. I have been a motion picture cinematographer for 15 years and have done several major movies but not done much still photography. I bought a 5d2 three years ago now the 5d3 and have pre ordered the 1dx.

I will upgrade to the best available so it helps me create better photos easier.

BUT the posted photos fail to show me any super technology. Again, I am NOT saying that 1dx will not have super focus etc... Or that the photographer is no good. Just that these photos fail to impress me. Photographers have managed to take such photos for decades... IMHO.

Sounds like you have great gear but I wouldn't say that buying a more expensive camera would be hitting the easy button, in fact you are probably going to make it harder on yourself by buying a 1DX. You might want to look at the modes as you will notice that there is no fully automatic mode, rather the 1DX is stripped down to the bare essentials: Program (PE), Aperture Priority (AV), Shutter priority (TV) and Manual (M).
(...)

I'll let sanj answer for himself, but I would think someone who's a seasoned cinematographer and long time 5D2/3 owner would not have to rely on the fully automatic modes to obtain properly exposed pictures :)

Having said that, it does take a bit of adjustment going from a "enthusiast"-level camera to a 1-series. And afterwards, you don't want to go back :)

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