October 01, 2014, 02:31:07 PM

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Messages - GmwDarkroom

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1
EOS Bodies - For Stills / Re: Why haven't you left canon?
« on: September 27, 2014, 12:55:18 PM »
Because if you have to throw down fringe situation results that can really only be seen in a lab environment or with instrumentation as why you need to jump ship to another system, you would be better served by working on your photography skills.

The most iconic and still breathtaking photos have more attention to overall exposure, subject composition, and the moment than micro-attention to sharpness, resolution, and dynamic range.

Move for want/need not benchmarks.

2
EOS Bodies / Re: 70D or 7D MK II
« on: September 20, 2014, 11:16:47 PM »
The human eye cannot tell the difference above about 24 fps, so a refresh threshold of about 42 ms is enough.
Not quite.  Cinema film shot at 24fps appears fluid to the human eye because it's projected at 48fps with each image shown twice -- as distinct from 48fps like Peter Jackson uses with a full 48 images.  If it was actually run at 24fps, you'd have a splitting headache.  Some projectors run at 72 images per second.

Carry on.

Regardless, your ability to see flicker isn't really related to your ability to track high speed subjects in the presence of lag.
No argument.  The effectiveness of a display is affected by refresh rate, input lag, and change response time.  The last is where an OLED EFV would have no issues.  The first two can cause problems.  The likely issue with any EFV would be input lag, if it's not sufficiently low.  Given that the data has to be encoded, moved, and redisplayed, the electronics would need to be very, very fast.

3
EOS Bodies / Re: 70D or 7D MK II
« on: September 20, 2014, 10:06:36 PM »
The human eye cannot tell the difference above about 24 fps, so a refresh threshold of about 42 ms is enough.
Not quite.  Cinema film shot at 24fps appears fluid to the human eye because it's projected at 48fps with each image shown twice -- as distinct from 48fps like Peter Jackson uses with a full 48 images.  If it was actually run at 24fps, you'd have a splitting headache.  Some projectors run at 72 images per second.

Carry on.

4
EOS Bodies / Re: 70D or 7D MK II
« on: September 20, 2014, 02:19:06 PM »
As far as WiFi goes, don't make that a big factor.  Unless you use it a lot, it's easy to add to any Canon DSLR using DSLR Controller:  http://dslrcontroller.com/guide-wifi_mr3040.php

Assuming you're using a tripod for remote, just Velcro that to a leg.  Works like a champ and drains the batteries less.

5
EOS Bodies / Re: Is Canon now two generations behind Nikon?
« on: September 05, 2014, 09:10:00 AM »
So when you guys re-quote each other a dozen times, this is what happens on an iPad to the thread:

Between this and the Dread Pirate Neuro, it keeps it amusing.

6
Photography Technique / Re: APOLLO missions - image inconsistencies
« on: August 18, 2014, 10:34:33 AM »
Delightful to see that ignorance can still shore up the most absurd conspiracy theories.

Don't make me call Buzz...

https://www.youtube.com/watch?v=1wcrkxOgzhU

7
Adobe Captivate will do what you're after.

If you're a bit more tech savvy, you can turn a Flash into an executable using Adobe Air.  However I suspect that if that were an option, you'd already know the answer as Air is a bit more like programming.

8
EOS Bodies / Re: A Bit of EOS 7D Replacement Info [CR2]
« on: August 11, 2014, 03:31:04 PM »
Hi, could you tell me more about how this works please? USB connection from Camera
to TPLink then via the LAN to a Tablet running DSLR Controller?

I am using DSLR Controller from my Tablet direct USB to my 5D, and have played with DSLR Controller
on my smartphone viw WIFI to the Tablet and then USB to the Camera.

Cheers Brain
The TP Link device becomes a network access point for the software running on an Android device.  No LAN needed.  I would assume you could get WiFi range out of it on a LAN, but I've only every used it in the field with the TP Link and my Galaxy S3.

Essentially, the TP Link takes over the WiFi pass-through duties it sounds like your tablet is doing.  The TP Link also acts as a stand alone router so you can go anywhere in the field with just one Android device and your phone or tablet.

9
EOS Bodies / Re: A Bit of EOS 7D Replacement Info [CR2]
« on: August 11, 2014, 12:00:18 PM »
I expect to try the TP Link TL-MR3040 soon to see how it compares. Only $40.
This is what I use on my 60D.  Works great.  The DSLR Controller app is better than Canon's app and the range on the TP Link is excellent.  I get 30 or so feet -- maybe a bit more -- depending on the environment.  For the money, it can't be beat.

I'm hoping the IQ will significantly increase over what APS-C has to offer now.  If not, I may save my money for a full-frame.

10
Canon General / Re: Colombia
« on: July 13, 2014, 10:17:22 PM »
I went there in 1995 under the auspices of the U.S. government and our briefing -- along with the then-relevant "Medellin and Cali are off limits" clause -- included a warning about the use of Scopolamine by criminals to drug and rob people.  The danger is that the doses used were potentially lethal with something like 25% of ER patients involving the drug.  Taxis we're allegedly a popular ambush point, especially if one stopped with more than one person in the car.

In my case, we didn't have to worry about getting around in taxis due to our mission, but a quick search tells me it may still be a problem.  All that said, you're far more likely to be just plain robbed or have your pockets picked.

11
Lenses / Re: Need help deciding on my next lens
« on: July 09, 2014, 05:27:45 PM »
Shouldn't the excellent EFs 17-55 f2.8 be considered ?
This and the 15-85.  It's pretty much the same debate full frame cameras have between the 24-70 and the 24-105.

I have the 15-85 and it's a great lens.  Nice and sharp.  Decent maximum magnification (.20x, I believe).

12
Pricewatch Deals / Canon Pixma Pro-100 for $34 AR
« on: June 27, 2014, 11:24:17 AM »
Saw this on another deal site last night, but it's still good and showed up this morning on TDP.  Adorama is the original source, but according to TDP, B&H will honor it over the phone:

http://www.the-digital-picture.com/News/News-Post.aspx?News=9949

It won't show as $334 until you add it to your cart and Adorama auto-adds the paper.

Less than the cost of inks for a Pro9000 Mk2.

13
The question is whether someone has the $12K -- plus the cost of support equipment -- to get the better quality.  Most don't and I don't think that we're talking about some Bower/Vivitar/Pro Optic lens.

However I found this comment interesting and even a good selling point.  A softer image is better than none at all:
Quote
With the Tamron 150-600mm, I had complete freedom of movement and could track the owl easily as he flew past me.  The key is that it can be hand-held.

In fact, had I been using the gimbal-mounted Canon 600mm instead of the hand-held Tamron, I’m really not sure that I would have captured that Snowy Owl shot.

14
Hey fellas, what's going on? Jack Douglas is using the same bird at the size in the thread about the 300mm f/2.8 II with stacked 1.4 and 2xTCs

http://www.canonrumors.com/forum/index.php?topic=19248.30

Jack's photo is at iso 4000, and he complains that he is not impressed with the results. Download Jack's and Don's image and compare. To my eyes, the stacked TCs have given a significantly sharper image. But, the conditions are different. I have uploaded Jack's here (apologies Jack).
The handheld 60D photo looks pretty damned good to me.  By 60D standards, of course.  Pitting the results of a 60D and a 6D is hardly a fair comparison, though.

Based on TDPs image comparison tools -- since I don't have a 6D to compare to my 60D -- I'd say that the results are at least equivocal.  Certainly the 150-600 is more versatile, less cumbersome, and less convoluted than stacked teleconverters and a prime.

15
Excellent review.

I am definitely putting this lens on my shopping list.  An extra 200mm over the 100-400 is just what I could use for bird photography.

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