Showing posts with label teaching. Show all posts
Showing posts with label teaching. Show all posts

Monday, April 16, 2012

Project 2012 -- April 8-14

Project 2012 -- Week 15
April 8 - April 14


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My Week 15 Photos

I used my camera in spurts last week, and got some good images.  It was a week of celebration!

I brought my camera to church, hoping to take a few photos.  I did manage to take a couple of the stained glass in the beautiful chapel we use for services.

[99] Stained glass message

For Resurrection Sunday, our family gathered together to celebrate that HE IS RISEN!  We enjoyed grilling, while also celebrating my dad who turned EIGHTY later in the week!!

[100] The Grillmaster

[101] Happy Birthday!!

[102] Eighty years!!

Then I set my camera aside for a busy week of preparations.  Friday was the culmination of all that prep work.  One of Friday's events was my photography presentation to our local 4-H Club.  I had several students thank me for coming, and tell me that I did a fantastic job.  I was thrilled to be able to share with them some of the things I've learned over the years about taking good photographs.  They were a great audience!

[103] Presentation to the 4-H group

Later on Friday, we had several people come over for Game Night--games, laughter, singing, laughter, talking, laughter, eating...  You get the idea.  My parents "happened to" stop by, and my dear friend Nan had brought cupcakes, other dessert, and ice cream to celebrate--once again--my dad's 80th birthday (which was actually that day, the 13th).  Below, my mom (with Nan) brought in the cupcakes while singing to my dad (that part of the house is really dark and I didn't have my flash--this was the best I could do!).

[104] Second celebration

Saturday was a day of recovery, and the Lord ordered our day as a day of rest, clearing our schedule of commitments so that we could recover from a hectic week.  Jacob was the only one who had to work--he went in for eight hours' work at a local police department for his college internship.

Later in the day, 7:30pm or so, clouds started rolling in.  I notice stuff like that, since I'm frequently at my kitchen window which faces southwest.  My camera happened to still be sitting on the counter, so I grabbed it and took a few shots.  The below clouds rolled through very quickly; within five minutes this particular formation was completely gone.

[105] Cloud waves

I hope you also had a great week, with great images and more importantly--great memories!!


Treasuring life's moments,
Christine

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Friday, July 1, 2011

Fun with DOF

If you have ever taken photos outside of "full automatic" mode, you already know what DOF is.  If you haven't:  Depth Of Field.  Simple!

Really, it's not that hard.  Once you get the hang of it, it's actually fascinating to play around with, and can be used make your photos more beautiful.  Think of "field" as the entire image you've shot--the subject and everything surrounding it.  The "depth" is just that--how deep you see into the image.  Do you see just the subject, and everything else is blurry?  Or is everything in focus?  That's depth of field.

Shallow depth of field = just the subject (or, even just a part of the subject)
Wide or deep depth of field = everything, or most everything, is in focus

There are times when it's effective to shoot with one, or the other, or somewhere in between.  A lot of the time, it simply comes down to personal preference.  Here are some macro shots I took of an Asiatic lily in my front yard; I took these specifically to experiment with DOF.  For this series of images, I put my Canon 40D on the AP (Aperture Priority) setting.  Um, wait--okay, the photos will be a little further down the page.  :)

The reason I used the AP setting is because APERTURE determines DEPTH OF FIELD.  The word aperture simply means opening, and refers to how open or closed the "hole" in your lens is.  Here's the only tricky part to learn:  The larger the aperture setting, the shallower the DOF is.  The smaller the aperture, the greater the DOF is.  Opposites.  And opposites attract.  :)

With the lenses in my camera bag, the smallest f-stop my Ellie can reach is f1.4, and the largest can go up to f32.  Sometimes even a small change to this number produces dramatic results.  By using the AP mode in the below images, I controlled the aperture, and I let my camera determine the shutter speed.  That way, I focused entirely on the aperture setting without having to worry about anything else.

Okay, now here are my images.  All the images are shot with ISO 100 for clarity, and I used a tripod and my camera's two-second timer to counter camera shake.  (I didn't want to use my remote.)

I set the first shot at f2.8 (the largest aperture for my macro lens), and increased the aperture with each shot.  Notice that when I increased the F-number, that the camera slowed the shutter speed.  That's because as the F-number gets larger, the aperture gets smaller, and the shutter needs to stay open longer to let in the proper amount of light.

f2.8, 1/100 second

f4, 1/50 second

f6.3, 1/20 second

f9, 1/10 second

f11, 1/8 second

f16, 1/4 second

That's as high as I set the F-stop.  The entire field is not yet sharp, but you get the idea.  I like most of these images for different reasons.  I love the f2.8 image because its DOF is so shallow, and I can see only the tips of the pistil and stamens (you'll have to look up flower terminology on your own).  With the f6.3 image, I can see that the whole image is of a flower, but there's still a sense of depth to it--the shadowy base of the center is still a little out-of-focus and mysterious.  I do like the f16 image, too, because there still is a sense of depth, but my eyes are free to explore down into the flower.  I can see the yellow center more clearly, and I can catch more detail on the center parts of the petals.

My favorite?  Probably the f6.3 or the f9 shot.  There is a lot to explore in these images, with a lot of mystery, too.

I hope you learned a little something!  I didn't necessarily post this to teach you, of course; it's just that when I demonstrate how to do something with my camera, then I learn it more thoroughly.  Hence, this little lesson in DOF is really for me.  But I also hope you enjoyed the lesson and my images.  :)


Capturing the moments of life.

Christine

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