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Messages - Mt Spokane Photography

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4756
Lenses / Re: TS-E 90mm f/2.8 Tilt-Shift for product photography?
« on: February 10, 2013, 06:18:20 PM »

I just slap a tube or two on and it becomes macro enough to show details in the small products I shoot with it!
On a TS-E??  You can do that, but tilting it may be a issue.  Focus stacking with your 100L will be far better and there is free software.

4757
Don't be fooled by the 95mb/sec card, its only that speed for reading.  Do a LOW LEVEL format on the card before using it again, and see if that helps.  Overwriting files on a SD card after a normal in-camera quick format can be deadly slow, since it must erase each block before it writes, and for a SD card, thats very slow.
Let us know if that helps

4758
EOS Bodies / Re: New DSLR @ CeBit?
« on: February 10, 2013, 06:04:11 PM »
They did show Pole Dancing robots last year, but the photography industry ignored it.  CBIT is rapidly going down in stature.
http://www.choice.com.au/reviews-and-tests/electronics/digital-cameras/camera-accessories/cebit.aspx
"Even camera and camcorder companies that have supported CeBit with huge budgets, such as Canon, Panasonic and Sony, have ditched CeBit in favour of announcements of new model lineups during the MWC. "

4759
Lenses / Re: Which pair of lenses to get?
« on: February 10, 2013, 03:23:33 PM »
Oh really? How bad?
I just finished watching a movie on NetFlex "Indie Movie" for those who want to check it out.
It was shot entirely on two 5D Mk IIs and made with FCPX and Denoising software. I didn't see moire and such in that. Is it due to the Mk II being better in terms of moire problems?
Get a 5D MK II for video if you can't afford a 5D MK III.  You don't want the Moire of a 6D.  Google it, people are complaining all over, there is even a special filter to help reduce it, but why buy into a problem?

4760
Software & Accessories / Re: Where are you posting your photo's?
« on: February 10, 2013, 03:18:46 PM »
I use SmugMug, its extremely flexable and low cost for displaying images.  If I were just storing them, I'd use Amazon S3.

4761
Lenses / Re: TS-E 90mm f/2.8 Tilt-Shift for product photography?
« on: February 10, 2013, 03:15:06 PM »
The 90mm TS-E is great for product photography.  It is not Macro, but focus closely.  However, I sold mine because I really did not need the tilt for my type of products, and seldom used it.
For photographing a Automobile where you are lookiinng from the front or rear, and want it all in focus, its very useful.  I'm not do sure about small products.  A macro like the 100L has a shallow depth of field because you get very close to the subject, but you do not get as close with the 90mm TS-E.
Another good technique to get more depth of field is to use focus stacking.  There is some good software that adjusts the focus in small increments, and other software that combines the resulting images into one that is totally in sharp focus.

4762
Canon General / Re: Post-Processing Woes
« on: February 10, 2013, 03:06:54 PM »
It happens, particularly with older images.  Perhaps I've learned something new in the ensuing time that can enhance a previous image. 

4763

That operate at 1/4 to 1/3 the speed of my CF cards? I can get up to 1000x CF cards, vs. 600x SDXC cards. Not only that, CF cards have a much lower latency, and buffer clear time with CF is three to five times faster (4-7 seconds for CF, 20 seconds for SDXC.) Even with the best of the best SDXC cards, they are still a slouch compared to even a moderate UDMA-7 CF card. I'll take the lower latency of CF at the same speed as an SD any day, even if it costs several times as much (although I'd say, given that I buy Transcend CF cards that have yet to fail me even once, the conversion rate is more like 3-4 SD cards per CF card, at mot.)

You are being generous with your estimate of SD card speeds.
The rated speeds for SD cards are only after a fresh low level format or when reading data.  Once the card has been written to and then formatted with the normal in camera format, write speeds seldom exceed 5-10 MB/sec, even if its a really fast rated card.  The issue is the time it takes to clear memory cells in order to write new data.  CF cards do this much faster.
 
Thats also why it is such a problem to use a CF and SD in the same camera and write to both.  If doing that, get a dozen fast SD cards and low level format them.  Then, after transferring and backing up your images, do a low level format.  this will substantially improve their write speeds and they will go from being almost useless for large Raw or video files to merely slow.

4764
Video & Movie / Re: The Blizzard of 2013 Time Lapse
« on: February 09, 2013, 11:42:14 PM »
If possible, post some stills of the Snow tomorrow.  How much did you get in Cambridge?  I hope that you and your family are all safe, don't do anything foolish.  I've seen two feet of snow in 12 hours in Seattle a few times, but not 40 inches!
 

4765
Technical Support / Re: Possible 7D Autofocus Issues
« on: February 09, 2013, 11:00:02 PM »
You mention that it has issues with still subjects?
 
Puut the camera on a tripod and take images of a flat wall about 15 ft away with a 50mm focal length.
 
Thak 10 shots moving the focus to infinity before each shot.  Make sure your shutter speed is at least 1/100 of a second, and set the aperture to wide open.
Variance in critical AF is normal, but 8 or 9 should have sharp focus.
That should show you that the focus is ok, or that it is bad.  The worst thing is when its erratic and every other shot is off.  That can be the camera or the lens, or a combination of the two.
Many of us went from a 8 or 10 mp camera to the 7D and started viewing images at 100%, and were appalled.  It takes more care and twice the shutter speed to get the sharp image you are used to seeing at 100%.  Once you get it down, then your images will be sharp, but its still a challange when you view them at 100%.
Now, just imagine those D800 users when they went from their 12mp D700 to the D800.  They had to learn to be very careful, and even then, viewing at 100% can be frustrating. I was one of them, but I went from a 5D MK II and 7D to the D800.  After a couple of thousand images, I got really tired of the long time it took to post process images and sold it, so I now have a 5D MK III.
 
Here is one of my first batch of images with the D800.  It was a struggle!

 
100% crop ---Frustrating and Fuzzy!!

 
By the second event, things were better. Same camera and lens, more experienced photographer :)

 
100% crop  Much better, but getting the apparent sharpness of a 30D at 100% requires ultra careful shooting, and thats not me!

 
 

4766
Lenses / Re: Would a 14-28mm f/1.8 be possible?
« on: February 09, 2013, 09:32:57 PM »
Of course its possible, but it is much more difficult and expensive to build a wide angle lens than a telephoto, who would buy a $50,000 lens like that.  They will make it for you if you guarantee  250 orders.

4767
Software & Accessories / Re: Lightroom and SDXC
« on: February 09, 2013, 07:52:32 PM »
Lightroom has nothing to do with SDXC or any other card type.  It merely works on a image file that you load into a computer from your camera or memory card.
 
However, a bad card or card reader can make life miserable for you.  I'd avoid savinng money by buying a cheap card, and stick with one of the better brands.  Same with CF reader and USB cables.
 

4768
Lenses / Re: Autofocus in AI-Servo performance in low light
« on: February 09, 2013, 07:46:17 PM »
Do not use AI Servo in low light 
It has little to do with the lens.  Its very difficult for a camera to find focus in low light and takes a second or two.  No way can it AF continuously in very low light.
Just use one shot and center point if the light is very low.

4769
I would not buy a 60D because it does not have AFMA.  That means that the body cannot be tuned to my fast prime lenses.  If you are using smaller apertures where the focus errors get lost in the depth of field, a 60D is fine.  But, if you want to move up to fast wide aperture lenses, they always have a little AF error, and sometimmes a lot of error.  I'd take a used or refurb 7D over a 60D any day.  That doesn't mean that the 60D is not a fine camera, it just means that you might be disappointed if you try to use fast lenses with it.

4770
Lenses / Re: AFMA Telephoto/Wide Discrepancy
« on: February 08, 2013, 09:30:12 PM »
My new 35mmL was +2 on m 5D MK II and +17 on my 1D MK III, I sent it to Canon with a explanation, and they adjusted it on their reference 1D MK III.  After that, it was perfect.
You can exchange it or do the same.

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