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Messages - neuroanatomist

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10276
I really hope Canon can hear the voices from non-PRO Canon users.

Canon hears them...just not the ones posting here...   :P

10277
For portraits on APS-C like the 60D, I'd recommend faster than f/2.8.  The 85mm f/1.8 is a great lens on APS-C for tight portraits. 

For example:


Rebel T1i, EF 85mm f/1.8 USM, 1/2000 s, f/1.8, ISO 100

You could do the 85/1.8 and the EF-S 60mm f/2.8 lens for under $1K.

10278
Yes, as long as you've enabled the corrections in the settings, and a profile is available (and on the camera) for the lens you have mounted.

10279
Speedlites, Printers, Accessories / Re: Flash
« on: May 29, 2012, 08:14:30 AM »
580EX II while they're still available (model is discontinued) or the 600EX-RT which offers optical or radio control of slaves.  Those are the only two nominally current 'standard' master flashes (not counting the macro flashes, MT-24EX and MR-14EX that are also masters).

10280
Lenses / Re: Bokeh...is the look feeling dated?
« on: May 29, 2012, 08:11:39 AM »
Interestingly, I've been getting an increasing, though still very occasional request in a job brief for total depth of field...

Let us know when brides start requesting you to shoot with a Lytro plenoptic camera...  :P

10281
A friend reminded me that Tilt/Shift lenses can wreak havoc with metering. Most of the pictures I have taken on the 5DMk3 have been with a brand new T/S lens.

True - best to use Live View with TS-E lenses - makes focusing easier, and metering is correct (else, you have to meter with the movements at neutral, set the exposure in manual, then tilt/shift).

Might also check the default import settings in Aperture.

10282
Lenses / Re: 24-70 f/2.8L mk 1 or 24-105 f/4L
« on: May 29, 2012, 07:48:56 AM »
I'm glad to see that they've figured out how to make the lens extend at 70mm rather than 24mm.  That is my only real complaint about the Mk1 version.

In terms of good copies of things, how far 'out of focus' does a lens have to be to deem it poor?  I'd be keen to see a sample so I could compare my own copy.

Actually, the reverse zoom design was one of the nice features of the 24-70, IMO - it means the lens hood is effective throughout the focal range, instead of at the wide end only.

One of the optical issues with the original is field curvature, hopefully not present in the MkII design.

10283
Lenses / Re: Are you going to "upgrade" your 24-70 2.8 I
« on: May 29, 2012, 07:42:37 AM »
No original 24-70mm to upgrade, but I'll be getting the MkII.

10284
Canon General / Re: Beliefs and myths.
« on: May 29, 2012, 07:15:53 AM »
Mostly agree, except:

* Nikon makes better wide-angle lenses including wide-angle zooms than Canon. Difficult one.  Possibly True, but the 10-22 EF-S is probably better than the Nikon alternatives.  Our WA tilt shifts are ok.  Same with the 14mm and 24mm.  It would be difficult to say Nikon is "Better".

I'd definitely say the Nikon 14-24 beats the Canon 16-35 II, but otherwise similar lenses are a wash. But...Nikon has no counterpart to the TS-E 17mm f/4L.

* Chromatic aberrations and lens vignette characteristics of a lens do not matter as these things can be fixed easily in Photoshop. Possibly False.  I suspect that it would be better to just get it right in camera rather than relying on software corrections.

Definitely false.  Yes, most aberrations can be fixed in post, but there are consequences - vignetting correction boosts noise, distortion correction reduces sharpness, etc. 

* Cropping in camera (1.6 factor) is not the same as cropping equal amount in post on a full frame camera. Not sure, but I think this is False

True - not the same.  While there is no difference in terms of DoF and probably not much in IQ (cropping in post increases perceived noise, etc.), in practical terms with current sensors (i.e. not comparing 5DII with 20D) the 1.6x sensor puts more pixels on target, meaning more resolution, ability to crop even further, but also the effect of diffraction at wider apertures.

* Mac computers have no real advantage over PC when it comes to processing photos. Very contentious.  I'll say True

Macs do have some advantages (the multitouch trackpad is a big one, IMO), but then PCs have some advantages, too - so really a wash.

* Manuel focusing can be learned with practice and once second nature, it is almost as fast as shooting with auto focus for subjects not moving so fast. True.  Faster in some situations

Perhaps as fast, but not necessarily as accurate - stock focus screens show the DoF of ~f/2.8 even with faster lenses, so for accurate MF you should replace the standard screen with a high-precision one (difficult and not supported on the 5DIII, simple on the 5DII and 1D X).

* The partial blur effect created by lens baby or tilt/shift lenses looks better than what is possible in photoshop.Maybe, but you have more post production possibilities in Photoshop.
[/quote]

With work, I suppose the Photoshop version could come close. But there's no way to replicate the increased DoF you can achieve with tilt.

10285
Third Party Manufacturers / Re: 3rd party stuff and canon RT
« on: May 29, 2012, 05:50:36 AM »
Not yet, but I expect Yongnuo will come out with something pretty soon.

10286
Third Party Manufacturers / Re: Camera Bag Recommendations
« on: May 28, 2012, 09:27:26 PM »
I'd recommend the Lowepro Flipside 400 AW.

10287
Lenses / Re: Recommendation for a sidekick wildlife lens
« on: May 28, 2012, 08:29:33 AM »
Neuro, the 2X makes a lot of sense coupled with the 70-200, if the IQ and usability stands up. I like to keep my lens count low so getting more use out of the 70-200 is an idea I like. Your shots look good, so would you recommend it for my application?

I should decide as there is a rebate expiring soon.

I hesitate to recommend a TC for routine use with any lens except the supertele primes (300/2.8 etc.).  Occasionally, they're fine.

I do recommend the 100-400mm - despite being an old design, it's a good one.  If you click on any of the bird pics I posted earlier, most of the other images in that set are with the 100-400 (EXIF is in the captions).  It's sharp, versatile, has IS, and IMO is the best way to get IS and 400mm without breaking the bank.

10288
Lenses / Re: Recommendation for a sidekick wildlife lens
« on: May 27, 2012, 09:29:27 PM »
Although few zooms hold up to a TC, the 70-200 II does well even with a 2x.  I have a 100-400, but use an extender for weather resistance, or when I'm planning to mostly use the 70-200 and bring the extender for opportunistic shots.

FWIW, here are a some examples - the first two on the 7D where I was using an extender + 70-200 II in drizzle/rain (the 1.4x shot was before I had the 2x), the third was bringing the 2x along on a trip with the kids where I brought the 5DII and 70-200 II.  Clicking them then View All Sizes in the upper right will get you to a 1600 pixel version if you want to check sharpness.


EOS 7D, EF 70-200mm f/2.8L II IS USM + EF 1.4x II Extender @ 280mm, 1/2000 s, f/6.3, ISO 3200


EOS 7D, EF 70-200mm f/2.8L II IS USM + EF 2x II Extender @ 400mm, 1/160 s, f/5.6, ISO 3200


EOS 5D Mark II, EF 70-200mm f/2.8L II IS USM + EF 2x II Extender @ 260mm, 1/250 s, f/5.6, ISO 400

10289
Glad that worked for you!

10290
Lenses / Re: Recommendation for landscape lens on 5DMk111.
« on: May 27, 2012, 12:35:05 PM »
TS-E 24mm f/3.5L II.

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