September 16, 2014, 11:52:45 AM

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Messages - GmwDarkroom

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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.

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...

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.

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.

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.

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.

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).

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:

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.

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:
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.

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

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.

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.

EOS Bodies / Re: The Next DSLR Will Be Entry Level [CR3]
« on: January 17, 2014, 11:02:49 AM »
Seriously, anytime you feel like hauling out the "but Canon sells more!" argument ask yourself if Budweiser really is the best beer in America.
This is not a valid analogy.  If Budweiser were $8-$10 a six pack instead of $8-$10 a case -- or whatever it costs -- the analogy would be valid.  In the case of the Nikon and Canon entry bodies, the pricing is close enough to not matter.  If the D3200 was $800 or more, I'd agree with your statement.  But if Bud were $8 a six pack, nobody would buy it.

Now when Neuro says that Canon is leading because Rebels outsell the D3x, you'll have a valid argument.

Lenses / Re: 6d/100L macro/Kenko 2X TC lockup
« on: December 26, 2013, 04:00:10 PM »
Thanks for your replies. Shutting off AFMA solved the problem, but as my 100L needed a +9 AFMA, not sure the overall solution will be satisfactory...
Back to the original question:

If you're going to be doing macro that close, I'd suggest going to Live View so that the mirror is up when you take the photo.  That kind of vibration can affect the results at that close of a focus distance.  If you use Live View, then the AFMA isn't necessary for accurate focus.

What I don’t get is, why they have to revise the RAW files with every camera model.  It’s my understanding that they’re ‘improving’ the codec, but is that really necessary with every camera model?  What can you improve in the Codec?  You can make the files smaller, and/or compressed faster.  But DNG continue to be slighter smaller than RAW files.  What gives?
From a programming perspective, any given camera's first duty is to quickly and accurately get your RAW file to the cache and then to your storage.  It doesn't matter if your camera has 10fps, if the system can't write the files fast enough so I assume they squash down the files to the absolute minimum bits.  Doing so would mean that even a small change to megapixels or ExIFF data would mean a different file format.

I have a (probably dumb) question. If everytime a new camera comes out and we need a new version of LR to utilize the RAW files, can we convert those files to DNG first and run the DNG file in a previous version of LR?

Is that why the Adobe DNG converter is free?? So you can do that?
Yes, assuming that Adobe doesn't change the format making it incompatible with previous versions.  Given that it's an open standard, I would hope that changes would be extensions not alterations.

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