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Messages - neuroanatomist

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and was also heavily considering a 70-300 DO which I still would love to give a good test, especially on something like a 5DIII, etc., with it's great low-light performance, this lens can be found used for fairly cheap

I bought one used, with the idea that it's small size and good range would make it a great combo with the 24-105 (the two lenses are identical in size).  I wasn't happy with the IQ of the 70-300 DO, and ultimately I sold it (for the same price I bought).  Even with boosting the contrast and sharpness in post, it wasn't up to the quality of my other lenses.  Side note, the zoom creep was pretty bad.

I'm still considering the 70-300L as a convenient adjunct to my 100-400, though.

EOS Bodies - For Stills / Re: Camera System
« on: June 14, 2012, 08:27:53 PM »
Canon, definitely. Echoing the above, it's mostly about the lenses.  The lenses which I like best, the Canon version is a hands-down winner for IQ (135L, 100-400, etc.) or ease-of-use (TS-E 24mm), or there's no Nikon equivalent (MP-E65).

In the Canon system the EF-S stands for short back focus...

Actually, the -S in EF-S stands for small image circle.  Yes, I know Wikipedia says it stands for short back focus, and Bob Atkins and lots of other sources do, too.  But they're wrong.   :o

Citation?  I know incorrect information gets disseminated pretty rapidly and thoroughly on the internet, but do you have any citation for the correct abreviation?

Because I said so...   ;)

If you look at the Canon Technical Report for the EF-S 18-55mm f/3.5-5.6 USM, you'll see the notation, "*The "S" in "EF-S" comes from "Small image circle.""

Also, if you look at p. 128 of EF Lens Work III (it's in section 7, The Basics of Interchangeable Lenses...), there's a notation that, "* Some of the EF-S lenses does not employ a short back focus optical system."  (yes, that's grammatically incorrect, but correctly quoted)

In the Canon system the EF-S stands for short back focus...

Actually, the -S in EF-S stands for small image circle.  Yes, I know Wikipedia says it stands for short back focus, and Bob Atkins and lots of other sources do, too.  But they're wrong.   :o

Really, if you have a ff camera and need more reach you probably can afford one of the TCs.

Sure...if your variable-aperture or f/5.6 lens will AF with one...

EOS Bodies / Re: Is the 5DIII the New 50D?
« on: June 14, 2012, 02:18:17 PM »
What differentiates the 5DIII from the 50D is the target market. 

But the D600 is potentially a game changer - a FF camera for not much more than the high-end APS-C which an entry-level APS-C consumer might consider as an upgrade.

Third Party Manufacturers / Re: Recommendation for backpack
« on: June 14, 2012, 10:56:40 AM »
But I haven't done with serious camera gear. This time I will travel with a 5D3, 24-105, a longer zoom - probably 70-300L,  maybe the 35L, S100 and a 270EX.

About the DryZone, I had a look at that also and it seems a bit small. Will likely go for the ProTrekker and pack the gear in plastic inside.

Can you clarify - is the backpack for your camera gear, or for your camera gear and a whole bunch of other stuff?  Your 'serious camera gear' is what I'd consider a light load.  The DryZone 200 interior size is just slightly larger than the Flipside 400AW.  In my Flipside 400AW, I can fit a gripped body, 70-200/2.8, 100-400, three lenses the size of the 24-105mm, and a 430 flash.  That means what you list would fill less than 60% of the DryZone 200. 

Lenses / Re: Looking for travel zoom
« on: June 13, 2012, 11:35:33 PM »
Recently finished processing my pics from our trip a couple of weeks ago.  The S100 pics are decent, but the 5DII images (with 28-300L) are a clear step above, even at screen viewing 2 MP resolution. 

FWIW, even though my wife and kids are quite tolerant of 'the big camera' I don't let it slow us down.  With a 2.5 year old, we still have a stroller along (if she's tired, but also for convenient storage).  When we all went on a ride, the 5DII+28-300L stayed in the Lowepro Toploader Pro 75AW tucked under the stroller (risky? maybe...but that's what insurance is for!).

Looking over the pics, I'm glad I had both cameras.  The meetup with 'Cinderella' in her castle needed ISO 6400 (slow lens).  The S100 flash would have worked, yes, but I'm not a fan of deer-in-headlights.  Instead, I have princess-hugs with my daughters in the (electric) candle-chandelier illumination, preserving the ambience.

Third Party Manufacturers / Re: Recommendation for backpack
« on: June 13, 2012, 06:26:01 PM »
I have looked at the Lowepro Pro Trekker 600AW. Questions around this, from those who have experience of this or the 400, is it waterproof?

No - they have an all-weather cover, basically a rain fly that goes over the pack.  Look at the Lowepro DryZone series, probably the DryZone 200.

They'll work.  Canon has already patented what looks to be an EF-to-mirrorless adapter.

EOS Bodies / Re: 1DX on preorder
« on: June 13, 2012, 06:19:07 AM »
At least we have a specific date, june 20:th!!!!!!
So put the bubbly wine in the fridge, it's coming  ;D

SWEET!!!   But...Canon has announced and missed specific dates before.  I'll believe it when B&H debits my account...

Amazon and other 3rd parties are still selling the 17" models.  Mine is early 2011, Core i5 and decently snappy (replaced a 2007 17", which were the very first gen 17" MBP), plus my Air is newer, after the 2011 refresh, so at least I'm not in a hurry to update.

Is it even bigger than the outer square?

Yes, it is.  Here's an approximation of the standard and spot AF compared to the little black box in the viewfinder for the 7D (relative size is likely equivalent on the 5DIII):

Count me out.  I want a 17", please!  I like my 17" for a workhorse machine, and my 13" Air for travel.  The 15" is too small for desk use and to big to be really portable, IMO the worst of both worlds (despite the wonderful display)...

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