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Messages - Stephen Melvin

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211
The Canon images are ~9mb. How can these be RAW files?

The Nikon images are ~20mb.

Certainly not a fair comparison.

Unfortunately it appears canon has once again under rated their iso..as dxo mark has shown previously.  Canon is 1/2 to 2/3 stop lower than advertised. Errrr.


I'm not sure how you've reached that conclusion. :/

One thing I'll note is that you cannot judge the relative ISO sensitivity of these two cameras based on these photos. Look at the reflections of the lights in the bottles. If you look closely, you'll see that the upper-right light in the 5D III photos is much dimmer than the other lights. The shadows are different for the 5D III photos as well. There's less light in the 5D III photos, so they adjusted the exposure to compensate.

212
Lenses / Re: Purchase thoughts: Canon 5d3 or 24-70L II?
« on: March 13, 2012, 11:56:36 PM »
I think you should get the camera this year and the lens next year. Canon's history with the 70-200 suggests the price will come down a bit in a year or so, and they do have the rebates from time to time as well.

The camera likely won't drop in price for a couple of years. You miss having professional AF, so why not get it now?

213
EOS Bodies / Re: 5D Mk III vs D800/E, is the 5D3 better at anything?
« on: March 13, 2012, 11:45:24 PM »
It recently occured to me after Nikon announced that with a grip the D800 shoots 6 FPS that I can't find a single advantage to the 5D3 over the D800. Here's what I know so far:

5D3 vs D800/E by catagory:

Dynamic Range: Inferior
Color Fidelity: Inferior

Color Fidelity? All modern dSLR's have excellent color fidelity; way better than film ever was. It's really irrelevant unless you're in the art reproduction market.

Noise: Equal
FPS: Equal (with a grip)

The "with a grip" nonsense is idiotic, IMO. Nikon's stuck in the 1970's with this notion.

Video: Inferior

We don't know that. Early tests seem to indicate Nikon's video is pretty mediocre. Early tests also show the 5D Mk III outputting 1080i video from the HDMI port, so that D800 advantage may be nothing.


Autofocus: Equal (both are pro level)/Inferior (no f/8.0)/Superior (better with fast lenses due to special f/2.8 sensors)
White Balance: Inferior
Auto Exposure: Inferior

We don't know that, yet.

In Camera Lens Correction: Inferior

You shoot a lot of jpegs? I didn't think so.

Pop up Flash: Inferior
Price: Inferior
Resolution: Inferior
AA filter: Inferior

Oh, you got that one backward. The AA filter is necessary, unless you like your images to be full of stair stepping, false color and moiré. Removing the AA filter is a very quick way to ruin photographs to the point of uselessness.

I realize that the 5D3 has a better menu system, so that's one thing it can possibly do better.

Don't forget its wider ISO range, access to the largest system of professional lenses in the world, and a service department that's second to none. Did you read about Nikon putting the smackdown on independent camera repair shops? This is not a very consumer-friendly company we're talking about here.

Don't forget the total cost of ownership. I recently did the math to replace my "L's" with equivalent Nikkors. It would have cost me about $1,200 more than it cost to buy my Canons; and I used Nikon's "refurbished lenses" site to get their prices.

Also please don't smite me. I'm not trying to bash the 5D3, as I'm actually a Canon fan and will be getting the 5D3, but can anyone think of one major feature that the 5D3 does better than the D800? If so feel free to post, I'm just trying to get informed here.

Thanks. :)

My sole complaint about the 5D Mk III is Canon's inability to get a handle on low ISO read noise and improve the dynamic range. I'm pleased with the new high ISO capability, and I love most of the other upgrades. It's what the Mk II should have been.

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