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Topics - Mt Spokane Photography

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109
5D MK III Sample Images / Test of 5D MK III and Canon 28-300mmL
« on: April 10, 2012, 09:07:25 PM »
I bought a used 28-300mmL locally, so after trying to AFMA it today (not successful due to the wind), I guessed at a likely value and snapped a shot of a robin under my feeder.
 
The image is shot at full aperture and cropped to 100%.  The 28-300mmL is not particularly sharp wide open at 300mm, but it is still reasonable.  I would have stopped down, but it was still in AV mode from the AFMA test.
 

110
Lenses / Canon and Zeiss Lenses for Video Vincent Laforet
« on: April 09, 2012, 11:33:48 PM »
Vincent Laforet is a Pulitzer prize winning photographer who has switched from still cameras to video.  He is a Canon maker of Light, so he will always favor Canon --- right?  He works with all popular brands of Cinema Cameras, film and digital, as well as lenses from inexpensive Canon lenses like the 24-70 L to uber high end lenses that you rent but do not buy.
 
But wait, he tells it as it is and backs it up with images.  The pros and cons spelled out for many of you who ask the same question over and over, here is a opinion of a pro filmmaker.
 
http://blog.vincentlaforet.com/2012/04/09/new-zeiss-wide-angle-slr-lenses-and-how-they-stack-up-against-their-canon-ef-counterparts/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+wordpress%2FjvaG+%28Vincent+Laforet%27s+Blog%29

111
Software & Accessories / FoCal Pro Beta for 5D MK III AFMA
« on: April 08, 2012, 10:19:50 PM »
Reikan foCal has released a beta for Pro users that supports AFMA of the 5D MK III with some limitations.  Its 5 or 6 weeks more before the SDK is released by Canon, so it is a clever work around.
 
I'll be trying it tomorrow on my 5D MK III.
 
For those who haven't heard of it, it will control your camera and do a semi automated autofocus micro adjustment.  I use it, it is accurate and useful. 
http://www.reikan.co.uk/focal/
 
There are no free trials, you must buy it.  However, use this link for a discount  http://www.reikan.co.uk/focal/mbp45/

112
5D MK III Sample Images / Angry Bird with 5D Mark III / 100-400mm L
« on: April 03, 2012, 11:18:00 PM »
I managed to find a hour this morning to check and adjust the AFMA for my 100-400mm L Zoom.  It was front focusing a little at 400mm, but I could not detect a issue at 100mm.
 
I took a few snapshots of our rooster as he herded the hens around our front yard.  He is one tough (And Mean) cookie.  Just what is needed with all the eagles,hawks, owls and other preditors around here.  Only our Male duck stands up to him and bosses him around.
 

 
 
 
 

113
5D MK III Sample Images / This Weather is for the Birds!
« on: April 01, 2012, 01:21:51 PM »
When will we get some warm weather here in Spokane, WA.  The birds are here in big flocks and disappointed.  I feed them, and they are really hungry with the lack of natural food.
 
Taken this morning April 1 about 10AM with my 5D MK III and 100mm L
 
This is a 100% crop, that 100mm lens doesn't have enough reach to fill a frame, and I'd have to slog thru the wet sticky snow to my studio to get my 100-400mm L. 
 
BTW ... Those streaks are snow coming down, not a sensor flaw :)
 

114
EOS Bodies - For Stills / 5D Mark III at F/8 and smaller Tests
« on: April 01, 2012, 12:14:03 PM »
I started testing my 5D MK III for autofocus beyond f/5.6 yesterday.  I decided to start by using my 1.4X and 2X Mark II TC's stacked together rather than taping pins.  The day was overcast, and dim, but not exceptionally dark either.
 
I had my 135mm f/2 L handy, so I put both TC's on it (F/8) and it had no problem autofocusing about 40 feet away, but it was quite slow.  Then when I tried it on some flowers 6 feet away, it chattered rapidly, focusing back and forth as though in a loop.  Back to a 20 ft distance it focused slowly again.  I tried it numerous times with the same results.
 
Then I tried my 70-200mm f/4 IS (F/11 equiv), it did not even try to focus (my 1D MK III would snap in with this combo when focus was close).
 
Next, my old non is 70-200mm f/2.8, (f/8 equivalent).  It autofocused reasonably fast and reliably every time with the 2 TC's stacked.
 
Finally, my 100-400mm L at 400mm (f/16 equiv).  No go not even a attempt to focus as expected.
 
Next, I'll tape the pins and try the 70-200mm f/4 + 2X TC (f/8) and the 100-400mm L + 1.4X (f/8).  I'm thinking it might work.
 
i'll post the results.

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