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Topics - christianronnel

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Third Party Manufacturers / Macbook Pro 2011 Logic Board/GPU failures
« on: February 25, 2014, 04:51:07 PM »
I know this is not camera related but I think there would be a lot of CR readers/members who may be using a Mac for post processing.  I just want those Mac owners to be aware of this issue.

My 17-inch MBP (2011) just started showing GPU glitches when I use Photoshop or Lightroom.  I cannot do anything to it but shutdown wait a few minutes before restarting.  The machine would be usable for a few minutes only just enough time for me to get a file so that I can use in another computer.  I'm out of warranty so I was getting ready to fix it.  While I was searching for logic board repairer I stumbled on a thread from Apple forum high failure rate on this model of MBP.  Another google search and I found this article on MacRumors

I'm curious if anyone here had the same problem?  I know the photography/videography community would probably have a high percentage of Mac power users that would push the GPU/CPU to its limits.

EOS Bodies - For Stills / 5D markIII Live View noise
« on: February 19, 2013, 12:25:10 PM »
I went on a trip to Yosemite this weekend and I tried using the 5D mark III for night shoot for the first time.  There was too much noise in live view compared to my friends 5D mark II, and made it too difficult to focus.  It's worse at 5x digital zoom.

I'm wondering if this is a problem with my camera body or there is something I can turn on/off on the menu.

I'm not sure if any of these matters but my settings are:
Live View shoot - enable
AF mode - Live mode
Grid display - 3x3+diag
Exposure simulation - disable (i tried this both on and off with the same results)
Silent LV shoot - disable (not sure what this does, but I tried the 2 modes and did nothing)
metering timer - 16 sec

Thanks for the help,

Lenses / EF200mm f1.8L vs EF200mm f2L IS vs EF300mm f2.8L IS II
« on: January 19, 2013, 12:37:44 AM »
I'm looking for an excellent lens for use in fast sports and portraits.  I'm considering between these 3 lenses.  It's really hard to find comparisons of these lenses let alone individual reviews.  So I'm depending on the professional photographers here whom have used any of these lenses.

EF 200 mm F/1.8 L USM - used on Ebay - US$3200-4000 (but they look like they've been driven over by a truck)
EF 200mm f/2L IS USM - New on Amazon - $6000
EF 300mm f/2.8L IS USM II - New on Amazon - $6800

There's about $2000 gap in prices in between these lenses.  But price is not the deciding factor.  I care about being able to use the lens wide open so it needs to be super sharp at the widest aperture.  The IS is also not a big deal since I'll be shooting upwards of 1/200.  I would like to use extenders (stacked if possible), how much loss in IQ is sacrificed for reach.

As of now I'm considering 200f1.8 but it's tough to find one in good condition.  It seems practical in terms of range, 280mm F2.5 or 400mm F3.5 or 560mm F5.6 (stacked is doable).  The images I've seen so far are just amazingly sharp and the bokeh is simply stunning.  I can't reproduce it with my 70-200 f2.8 v2 even if I try my best.

What are your experiences with the any of the lenses?  Which one is a more practical - range, portability, focusing speed, AI servo performance, Image quality at widest aperture, bokeh quality?

Thank you very much for your time,

Portrait / Opinion needed - Portrait post processing
« on: December 02, 2012, 03:32:40 AM »
Hi all,

I'm a beginner to photography and pretty much self-taught.  I'm just starting to get into portraiture and I find it very difficult to just learn it on my own.  Unlike landscape photography which I think is very subjective, I find portraiture to have more objective fundamentals that I can't learn from looking at the photos unless a trained eye points it out to me.  So, I need your opinion on which post processing do you prefer and why?  Any other pointers is greatly appreciated.  Thanks in advance.

post processing 1

Lin_20121124_0004.jpg by Christian Ronnel, on Flickr

post processing 2

Lin_20121124_0005.jpg by Christian Ronnel, on Flickr

post processing 3

Lin_20121124_0006.jpg by Christian Ronnel, on Flickr

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