Tokyo Midtown

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Comments

-kbull- says:

Are you in the habit of uploading downrezzed files? I was going to check this out at full res to see how much detail/sharpness the 5D can get...

BTW, your sensor needs a cleaning :-)
Posted 14 months ago. ( permalink )

jasonchen* says:

Yeah, I'm down-sizing my files in Aperture before I send them off to Flickr. It just takes too long to upload the 2906 × 4372 files that the 5D generates. Besides, most of the sharpness that you'd observe is probably from the 50/1.2L and not just the sensor. The "Original" size should give you a sense for the combo, though.

But yeah, the sensor might be a bit dirty. It might also have been the lens as well. I'll have to do some additional checks to see where things are now. I hope future 5D equivalents have auto-sensor cleaning built-in.
Posted 14 months ago. ( permalink )

-kbull- says:

You didn't spring for the f/1.2, did you?? This ISO 12233 crop actually gives the edge to the f/1.4 in terms of CA and perceived sharpness (because of the CA) at f/16, so I'm thinking the sensor plays a bigger role here. There's obviously a lot of detail not visible in the downrezzed file- any way I can get an original copy for pixel peeping purposes? I checked your blog (glad to see you updating it again) but only saw a link here.

Doubt the stuff is on the lens- even at small apertures, the front element is pretty defocused, and the debris is starting to look pretty sharp at f/16. Man, you're gonna need a stiff drink if you want to clean that $1400 sensor yourself. Me, I'm cleaning my sensor every chance I get, hoping to give myself an excuse to upgrade. Kidding, of course, but still, I might just do it.
Posted 14 months ago. ( permalink )

jasonchen* says:

I don't pay much attention to pixel peeping. The 50/1.2L fits my purposes well and turned out a really great batch of photos from Tokyo. Besides, do you shoot test charts regularly?

As for a full-sized shot, check your work email (I don't think I have your current personal address). I sent a copy to you on Sunday afternoon.
Posted 14 months ago. ( permalink )

-kbull- says:

Dude, test charts are hot. I wasn't trying to denegrate the 1.2L, I was just saying that at small enough aperture, most lenses are roughly equivalent. I know the 1.2L won't bloom wide open in backlit conditions like the 1.4 will- I have a whole batch of concert shots that are unusable because of that.

Anyway, I got your file this morning. I'm really impressed with the detail- not sure the 20D can get that sharpness at the pixel level. Something else I wanted to check was the blue sky. One of my biggest complaints with the 20D is the blotchy blue skies, which the 5D seems immune to, at least in this shot. Thanks for the full size!
Posted 14 months ago. ( permalink )

jasonchen* says:

No worries — it just seems like many photography sites obsessively dissect lens performance and forget about what matters: capturing great images. But regardless, you're right that at a small enough apertures performance generally converges *and* that I need to clean my sensor — it was a mess. :-)

Glad you got the full-size shot. FWIW, it was developed using Aperture, so I don't know how the RAW processing compares to what Adobe RAW could do. Let me know when you're in the Bay Area next and you can take my 5D for a spin.
Posted 14 months ago. ( permalink )

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Taken in Tokyo, Tokyo Prefecture (map)
Taken with a Canon EOS 5D.
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Taken on April 20, 2008

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Tokyo Midtown

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-kbull- says:

jasonchen* says:

-kbull- says:

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