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Specializing in Marching Band, Performing Arts and Event Photography, based in Normal, Illinois.
Thursday, March 31, 2011
Wednesday, March 30, 2011
Tuesday, March 29, 2011
Sunday, March 27, 2011
PhotoVision Calibration Target vs Expo Disc
Yesterday I read a long forum post where a couple of folks were debating the virtues of both of these tools, the PhotoVision Calibration Target and the Expo Disc.
I own both tools but I largely use the PhotoVision Calibration Target.
Both sides of the argument were making some sense (to me anyway) so I thought I do my own tests. I know I did this a while back but wanted to redo this as I did not recall the original results.
So I put my Canon 7D/24-105mm on a tripod tethered to Lightroom. Using a 3 light setup with a 36" octa as the main, a 30" brolly box and 20 degree grid spot as an accent light. Having metered my setup with my flash meter I know the correct exposure is f/5.6 ISO 100 at 1/125 shutter speed. So let's see what the White Balance tools say.
First photographed the PhotoVision Calibration Target at f/5.6. Here is the result:
As you can see from the histogram this is pretty much what I expected to see. A perfect exposure. I sometimes like to underexpose a tad so I re-shot the target at f/6.3:
Again about what I expected to see. Next I shot several Expo Disc images:
What I found was that in order to get a center spike I had to open up to f/5, which would over expose my image. Not what I want to do.
Here are the results of both tools shot at f/5.6, the LR settings on both images are identical except for WB which was based on the respective tool:
PhotoVision Calibration Target
Expo Disc
The skin tone is slightly off here.
I guess I'll be staying with the PhotoVision Calibration Target. I suppose I may have done something incorrect in my test here but if so someone will have to point it out to me, as I don't see it. I'll upload these files to my Flickr site if anyone wants to see the full size image. If you have comments or questions please post them.
I own both tools but I largely use the PhotoVision Calibration Target.
Both sides of the argument were making some sense (to me anyway) so I thought I do my own tests. I know I did this a while back but wanted to redo this as I did not recall the original results.
So I put my Canon 7D/24-105mm on a tripod tethered to Lightroom. Using a 3 light setup with a 36" octa as the main, a 30" brolly box and 20 degree grid spot as an accent light. Having metered my setup with my flash meter I know the correct exposure is f/5.6 ISO 100 at 1/125 shutter speed. So let's see what the White Balance tools say.
First photographed the PhotoVision Calibration Target at f/5.6. Here is the result:
As you can see from the histogram this is pretty much what I expected to see. A perfect exposure. I sometimes like to underexpose a tad so I re-shot the target at f/6.3:
Again about what I expected to see. Next I shot several Expo Disc images:
What I found was that in order to get a center spike I had to open up to f/5, which would over expose my image. Not what I want to do.
Here are the results of both tools shot at f/5.6, the LR settings on both images are identical except for WB which was based on the respective tool:
PhotoVision Calibration Target
Expo Disc
The skin tone is slightly off here.
I guess I'll be staying with the PhotoVision Calibration Target. I suppose I may have done something incorrect in my test here but if so someone will have to point it out to me, as I don't see it. I'll upload these files to my Flickr site if anyone wants to see the full size image. If you have comments or questions please post them.
Saturday, March 26, 2011
Crockettville02: Blog Post_110318
Will Crockett is getting ready to create a new work space at home. Check it out.
Friday, March 25, 2011
Monday, March 21, 2011
Policy change at Music Man5 Photos
If you visited Music Man5 Photos website over the weekend you may have noticed this "Note all event galleries will only be online for 30 days, so place your orders right away."
What this means is that most galleries will on be visible for 30 days. After 30 days have passed these galleries of photos will still be on my website but will only be accessable by direct link. A direct link would be a post on one of the blogs or if you were invited to a specific event and provided with an event link (like this:
What this means is that most galleries will on be visible for 30 days. After 30 days have passed these galleries of photos will still be on my website but will only be accessable by direct link. A direct link would be a post on one of the blogs or if you were invited to a specific event and provided with an event link (like this:
At some point events will have an expiration date also but for now they do not. More on that when it happens.
What you need to remember is that once a photo gallery goes up for an event (party, concert, play, rehearsal, competition or sporting event) you have 30 calendar days to place your order.
Thanks. As always, if you have questions just let me know.
Mark
Sunday, March 20, 2011
Saturday, March 19, 2011
Ps CS5 and SEP test
Another Photoshop CS5 and plug-in test. This time I tested NIK's Silver Efex Pro 2 (which I really love by the way).
Friday, March 18, 2011
Lighting for Beauty and Glamour
Check out Christopher Grey's latest video!!
Labels:
photography,
video
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Tuesday, March 15, 2011
teleconverter shot
This was taken with the Canon EF 70-200mm f/4L IS USM and the Canon 2x Teleconverter. Hand held at 400mm.
Sunday, March 13, 2011
time to upgrade?
Adobe is offering a pretty good deal to Elements owners to step up to CS5. I don't use Elements a lot but I do use it. I wonder if I should upgrade now or not. Thoughts?
Friday, March 11, 2011
Wednesday, March 09, 2011
Manfrotto 327RC2 Pro Mag Joystick Ball Head
This is one cool ball head. So much easier to work with.
Sunday, March 06, 2011
Saturday, March 05, 2011
Thursday, March 03, 2011
Finally closed the loop on controlling my color!!
Since I'm so happy with my color today let me share a couple of other things.
Your monitors image quality is very important. About six months or so ago I upgraded to the LaCie 324 (one Will Crockett recommends) from a Dell monitor and wow what a difference that made. Check out Will's recommendations here and over at www.shootsmarter.com. Here is a video by Will discussing monitors.
Next I picked up the ColorChecker Passport. The 2nd side of the perfect color triangle is The X-rite ColorChecker Passport! Click Here to see a short video about the ColorChecker Passport.
Now I have closed the loop (completed the triangle or whatever) and created an accurate profile for my monitor!! Now I can create accurate skin tones in my images, something I had been struggling with. I purchased the X-Rite EyeOne Display 2 profiler. Here is a link to a Will Crockett video talking about the important of profiling your monitor and how easy it is to do it.
If I remember I'll post a before and after image a little later.
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