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.
(F/13 1/80 Sec. ISO-200 105mm)
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.)
(F/8 1/250 Sec. ISO-2000 105 mm)
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.