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Messages - neuroanatomist

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Technical Support / Re: Dynamic Range questions..
« on: September 27, 2014, 07:01:28 AM »
I can shoot outdoors noon, with very bright sky and deep shadows or with the sun in the frame. An older photog recently told me that the best time for pictures is 2-3 hours after noon or before sunset, with higher dr, I can make use of the whole day.

I can use on-camera direct flash to light all my indoor and close outdoor pictures.  Can doesn't mean should, though.   :)

Lenses / Re: Canon 600mm f/4L IS II USM Purchase
« on: September 26, 2014, 10:01:16 PM »
I don't believe Canon has ever offered a rebate on the 600mm lens.  I'd encourage you to check out canonpricewatch.com's current 'street price' deal – it's several hundred less than I paid for my 600 II around two years ago. 

EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 26, 2014, 09:54:26 PM »
I fully plan to create some "optimal" exposures, that was actually the entire point of renting the A7r in the first place. It also so happens that this weekend is the last weekend for fall colors in the mountains. It might be raining, not sure yet, but I'm going to try to get some landscape photos, every scene with both cameras, bracketed, etc. I don't have a lot of time to go hunting for awesome landscape scenes, so don't expect any kind of impressive artwork, but I always planned to do a more rigorous comparison between the two.

I've seen lengthy geometric proofs for the fact that a square is the largest rectangle that can be inscribed in a circle, and even lengthier algebraic proofs that 1 + 1 = 2.  At the end of your testing, I'd be quite surprised if don't conclude that the a7R has more DR than the 5DIII and you can push the shadows harder. 

Still, there's value in demonstrating to ourselves that which we expect to be true.  Enjoy!

Technical Support / Re: What are the best ND Grads? No circular!
« on: September 26, 2014, 08:01:55 PM »
Lee or Cokin Z-Pro holder, Lee grads or Singh-Ray reverse grads for filters.

Some one locally is selling a 100-400 for $1000... I'm not sure if it is in anticipation of the new one coming out... but it is tempting... even just buying one, using it for a while and then selling it.  Tempting.

That's not far off the going rate.  I've seen them listed for that on CL relatively frequently.

EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 26, 2014, 02:48:27 PM »
@ PBD – interesting test, with an entirely predictable outcome (not referring to the images, but their reception before and after the 'reveal').  "Wonderful shadow detail" becomes "pointless" because...well, actually the reasons are changed as needed and therefore don't really matter anyway, do they?   ::)

EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 26, 2014, 10:58:19 AM »
Does the 7d mark 2 have auto lens calibration or do you still need a program like FoCal Plus for that?

You need to perform AFMA yourself, manually or via other software (e.g. FoCal).

EOS Bodies / Re: Poll: Would you buy a high MP Canon EOS 5DIV?
« on: September 26, 2014, 10:57:33 AM »
I would buy if it had a crop mode so I didn't have to download horrendously huge files.

That feature is called a 70D and you already own one.  :D
Its also in both the 5DII and 5DIII as well as in the Nikon D800 and D810 - so I can venture to say already; It will!

The 5DIII and 5DIII have a crop mode?  News to me...  mRAW and sRAW deliver the full FoV, as do the more compressed JPG files.  A crop mode delivers a FoV less than the full sensor. 

Canon General / Re: DRones vs. anti-DRones: how to resolve the controversy
« on: September 26, 2014, 10:56:02 AM »
Unless someone has tried ML and evaluated if this software fix works for him/her, crying that one's pictures are crappy because of low dr is trolling.

Assuming that one has a camera body for which ML is available...  I'd have buy a different FF camera to use ML, or take the IQ hit with APS-C. 

EOS-M / Re: EOS-M and EF-S 60mm Macro ...
« on: September 26, 2014, 10:52:40 AM »
Fair enough.   ;)

The adapter has a (removeable) tripod foot which would likely be a better mounting option than the tripod socket on the M.  Not sure if you need a plate to adapt to your copy stand, but FYI the mount foot on the adapter is a video-type foot (1/4"-20 socket with a hole in front for the anti-rotation pin).

EOS-M / Re: EOS-M and EF-S 60mm Macro ...
« on: September 26, 2014, 10:44:23 AM »
What do you mean by 'how it works'? 

It's compatible, as are all EF and EF-S lenses. You attach the lens to the EF Mount Adapter, you attach the adapter to the EOS M.  Turn it on, take pictures.   ;)

EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 26, 2014, 08:52:18 AM »
Seems you're more reasonable now, in most regards? :)

Isn't it amazing how people are reasonable when they agree with you?   ::)

EOS Bodies / Re: Canon Says Higher Resolution Sensors Are Coming Soon
« on: September 26, 2014, 08:27:52 AM »
I suspect that a decent photographer could shoot with either Nikon or Canon and show .... wouldn't have a clue which was shot with which. ...it is an honest observation of human psychology. We all do it, but normally fail double blind tests.

Knowing the difference in advance makes it easy to see what you expect.  It can even reveal unconscious biases, as has been confirmed by ample neuropsychological testing.

"Any craftsman or artist would like to have the best tools available, not because it affects what you see in the final product, but because it makes the job easier."  — I agree.  So why do so many highly skilled, highly successful, highly renowned photographers seek out and stick with Canon?  Because they feel it is the best tool available for their particular work.


EOS Bodies / Re: Poll: Would you buy a high MP Canon EOS 5DIV?
« on: September 26, 2014, 07:18:13 AM »
No, but I'd likely buy a high MP 1-series body.

Technical Support / Re: Dynamic Range questions..
« on: September 25, 2014, 08:12:30 PM »
Yes, it depends on the sensor, and it depends on the sensors being compared (respectively).

DxOMark plots the full stop measurements (use the Measurements tab) for each sensor.  Bill Claff (Google Claff D70) plots DR vs. ISO in 1/3 stop increments for select sensors.

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