This is my submission for XDrive Photo Lesson 9 – Focus. All photos were taken with Nikon D750.
First, here is the daylily photo I posted for XDRive Photo Lesson 8.
In Raj’s comment, he said, “You have an aperture of f13 that should have sharpened the whole flower. The reason is your shutter speed. At a focal point of 105mm, you should be around 1/160 sec minimum. So there is a micro camera shake in the picture.”
Well, it was more than a “micro” camera shake. This photo was taken in my front yard and it was quite windy that day. Anyway, after reading Raj’s comment, I decided to bring the flower inside of the house and give it another try.
(By the way, the black background was interesting for me too. It was during the day; I think it was because the sunlight shinning on the flower, and how far the background was from the subject.)
Even with F/8 instead of F/13 (no wind) I can see a lot more details of the flower in this photo! (I mean… Raj was right 😉
What’s next? Raj had mentioned a couple of things about DOF. I decided to take some photos to help me remember what I had learned.
Photo 1 – f/9 1/15 Sec. ISO-1250 105 mm
Photo 2 – f/9 1/10 Sec. ISO-1250 300 mm
Photo 3 – f/5.6 1/80 Sec. ISO-1270 300 mm
The longer the focal length of the lens, the shallower the DOF.
Comparing photo 1 and 2: they both have same F-Stop, but Photo 2’s focal length (300 mm) is longer than photo 1 (105 mm). Sure enough, Photo 2 has shallower DOF (The Chinese character in the background is more blurry.)
The closer you are to your subject, the shallower the DOF.
Comparing photo 2 with photo 3: Based on F-Stop, photo 3 should have shallower DOF (F/5.6 vs. F/9). But because of photo 2 was taken closer to the subject, photo 2 turned out having a shallower DOF.
It’s fun to take photos to “verify” what I have learned. 😉 Not because I don’t believe my instructor, but because I often suspect my camera has its own soul, since it often produces unexpected results ;-).
One thing I want to say about taking sharp photos (focusing) is probably not agreed by many — gear does matter! I am not saying that one can take better (sharp) photo with a more expensive camera; I am saying that the weight of a camera (certain weight is more stable for certain person) and how hard you have to press the shutter release button to take a photo does affect the quality of your photos. In other words, I believe certain camera suits me better than the other. (There, I said it.) I mean… based on my experience, I get along better with certain cameras. 😉
Finally, here are photos I took at the Temperance River State Park. (By the way, I did go back to ask the boy’s email address and emailed his photos to him.)
Both photos: F/5.6 1/640 Sec. ISO-200 300 mm
I was surprised at how these photos had turned out. To be honest, I didn’t have many successful shots with 300 mm focal length (a lot of blurry ones.) This time, I did use the information board to support the camera though.
Even though I am happy with the result, I am quite aware that they can be further improved. For example, it would be much better if I had included the water below in the composition (but in that case, would I be able to see his face expression?). Oh well, all of these will get better with practices, I am sure 😉
Thanks for visiting my blog.