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Messages - neuroanatomist

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6166
Lenses / Re: Which Lens ... 24-70 II or primes?
« on: April 10, 2013, 09:34:05 AM »
Another +1 on 24-70....Even Neuro stop using his 35L after buying 24-70

Well...it's only been a couple of weeks that I've had the 24-70 II, so the jury's still out.  The point about creative effects with thin DoF is a valid one.  Also, for nighttime walkaround, the 35L may be useful as with the wide angle, if the subject(s) are a few feet away the DoF isn't as much of an issue, and the extra 2 stops would come in handy.

6167
Macro / Re: Mp-e and 100mmL sharpness
« on: April 10, 2013, 08:07:51 AM »
It's definitely an extremely fun lens.  Having the right tools makes using it much easier.  A stable tripod, a macro rail, and the MT-24EX are very useful...almost required.

6168
...I still dont see any great "leap" from a say 550d to the 60d ?
Yeah, you're right.  The pentaprism vs. pentamirror VF, ~40% faster frame rate, much better AF (9 crosses with a dual cross vs. only one cross), one stop faster max shutter speed, bigger battery for more than double the number of shots on a charge, better build with some weather sealing, better ergonomics (top LCD, etc.), all that's irrelevant.

I understand there are many other important components to a body......I still dont see any great "leap"
Since you understand there are other important components to a body beside the sensor, and you still don't see a difference between the 550D and the 60D, what 'leap' are you expecting? It's one level up...you expect Ferrari power and handling if you get the Accord instead of the Civic?

Oh, I get it...you must one of those people who expects a 1-series body for $1000.  That Entitlement T-shirt must look even better than the DxOMark T-shirt!  ::)

Sorry, but I really don't see the point of your post. 


6169
Lenses / Re: Prediction for 200-400
« on: April 10, 2013, 06:37:42 AM »
Sure, it'll be available.  For sure.

Oh, wait, I though you meant 2015.   :P

6170
Canon General / Re: Think I need a 12 step program
« on: April 10, 2013, 06:34:05 AM »
What's next? 600-rt to replace the 580 ex ii s?

Depends on how you shoot.  The 600EX-RT is a great flash, of course, but the main reason to get it is for the RF capability.  UPS is delivering my second 600EX-RT and an ST-E3-RT to me today.   :)

I sometimes shoot with only Speedlites, sometimes also add a monolight.  I've been using PocketWizards for triggering because they can fire the blended setup (I had a pair of 430EX II's that I just sold).  But the simplicity of the Canon-only system is attractive when using just Speedlites.  I plan to try it with the monolight optically-slaved, and if that works for the blended system, great!

6171
Ahhh, good to know that you're one of those people who think the sensor is the sum total of a camera.  I bet that DxOMark T-shirt looks great on you!  ::)

6172
EOS Bodies - For Stills / Re: Made the switch to FF and love it
« on: April 10, 2013, 06:20:18 AM »
I went back to my 7D to use the crop factor on my 70-300, but it didn't feel right..

When I had the 5DII, I used the 7D frequently, but almost exclusively with the 100-400L for birds/wildlife - the AF of the 5DII just didn't cut it.  Since getting the 1D X, I haven't used the 7D - and I'm sure the same would be true with the 5DIII.

6173
Macro / Re: Mp-e and 100mmL sharpness
« on: April 10, 2013, 06:16:06 AM »
The 100L is sharper at 1:1 than the MP-E 65mm with both at f/2.8 (probably not where you'd be for shooting macro).  They're similar at f/8. 

6174
EOS Bodies / Re: Canon Announcements on April 23, 2013? [CR2]
« on: April 09, 2013, 08:04:09 PM »
Quote from: DxOMark
Perceptual MPix: a much simpler tool to score and compare lenses
P-Mpix is the unit of a sharpness measurement. The number of P-Mpix of a camera/lens combination is equal to the pixel count of a sensor that would give the same sharpness if tested with a perfect theoretical optics, as the camera/lens combination under test.
For example, if a camera with a sensor of 24Mpix when used with a given lens has a P-Mpix of 18MPix, it means that somewhere in the optical system 6Mpix are lost, in the sense that as an observer you will not perceive the additional sharpness that these 6Mpix should have added to the photos if everything was perfect.

According to DxOMark, the best prime and best zoom from each are:

Canon 300mm f/2.8L IS II on 5DIII - 22 P-Mpix
Nikon 85mm f/1.4G on D800 - 22 P-Mpix

Canon 70-200mm f/2.8L IS II on 5DIII - 21 P-Mpix
Nikon 70-200mm f/4G ED VR on D800 - 21 P-Mpix

So, by DxO's criteria and definition, Canon's best prime and zoom lens are basically not limiting system resolution (within a 1 MP margin of error).  However, Nikon's best prime and zoom on the D800 are resulting in the 'loss' of 14-15 MP....resulting in a perceived sharpness of even Nikon's best lenses on the D800 as no better than Canon's best lenses.

Interestingly, while the D800 appears to be 'too much' for Nikon lenses in that the lenses are clearly limiting overall system resolution, we don't know from these data if we're at the limit of the Canon lenses.

6175
EOS Bodies / Re: Canon Announcements on April 23, 2013? [CR2]
« on: April 09, 2013, 06:40:27 PM »
resolve better?
its clearly so that d800 resolves more than 5dmk3 with the right lens

It's déjà vu all over again.  Yes, with the right lens. But on average, across a large group of lenses, the D800 cannot out-resolve the 5DIII, according to DxO.

It is also about DR and cleanliness of the raw image.

Sign next to Nikon dSLR at Best Buy: "Great DR and clean RAW."

Comment by 'average consumer' overheard: "Well, if I was one-a them vegan-types that ate only raw foods, I'd sure as heck need a great doctor!  Think I'll check out that Canon over there..."

 ;)

6176
EOS Bodies / Re: Canon EOS 6D Firmware Update
« on: April 09, 2013, 03:51:41 PM »
I have to say, I'm very annoyed with Canon.  They release a firmware update for the 6D, after only being out for several months, while the Canon T4i has been around for a year and hasn't received anything.

What feature on the T4i isn't functioning properly and needs fixing?  ::)

6177
Lenses / Re: Is there any chance this is legit?
« on: April 09, 2013, 03:12:14 PM »
There are good deals out there, but I seriously doubt this is the one. I once met someone selling a 300mm f4L IS for $800 in like new condition on Craigslist. We met at a public place (her place of business; a bank). I walked through two feet of snow to get there, she felt bad, and sold me the lens for $700. That's a 50% discount!

Indeed.  I, too, picked up a 300/4L IS for $700 (and after getting the 100-400L, I sold it for a reasonable profit  :) ).  It was quite a decent lens:


Rebel T1i, EF 300mm f/4L IS USM, 1/500 s, f/4, ISO 200

I've also bought a couple of other lenses for ~50% of their new cost - a 200/2.8L II (subsequently sold after getting the 70-200 II), and an MP-E 65mm (still have it).  As a rule, I won't pay more than 70% of new price for a used lens.

So, there are deals out there - but you have to be careful.

6178
the canons are nice for the white ones starting from 70-200mm but can´t be used with most other lenses.

i think the kenkos give me more flexibility.

Note that the Canon TCs also work with the 135L and 200/2.8L lenses.

I agree the Kenko TCs can offer more flexibility.  I'm recommending reliability over flexibility.  I'll also point out that you stated:

i want the best image quality.

The general consensus is that while the newest Kenko 1.4x DGX is similar to the Canon MkII, the Canon TCs offer better IQ.  Also, with non-tele lenses, the TC generally has a much more significant negative impact on IQ.

I think you need to decide on your priority - flexibility for lenses you may someday buy vs. IQ and known compatibility.

6179
EOS Bodies / Re: Canon EOS 6D Firmware Update
« on: April 09, 2013, 12:28:54 PM »
And people said Canon wasn't concerned about keeping things on schedule...   :P

6180
Avoid current confusion and possible current and future incompatibility - buy the Canon 1.4xIII (or II for lower cost).

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