Every semester in the past, I have a few students dropped out from this class after the mid-term, some even dropped the class before the mid-term. I am happy to see that this might become the only class that breaks the "tradition." However, after I graded the written test on the mid-term, I am a bit worry. It seemed to me that some of you did not really study the course materials (class notes and textbook) seriously. Quite a few of the questions I have in the mid-term showed the fact that you did not go through the books and notes I required you to study.
These similar questions will be asked again in the final exam. And the questions are going to be coming from those same materials. You will need to go through that again sooner or later if you want to get a good grade.
I am very surprised that some of you did not get the right answer to the following questions:
8. The president of SAC is giving a speech on the stage in front of a big black backdrop and a spotlight shining on him. You are shooting from quite a distance away with a framing of 80% of the photo showing the black backdrop. Suppose you are using P mode on your camera, what kind of compensation setting should you choose in order to get this photo closer to properly exposed?
A. –2 B. –0.5 C. N D. +0.5 E. +2
11. Which of the following exposure combination will produce a “one-stop-brighter” photo than f8, 1/250s?
A. f5.6, 1/250 B. f11, 1/125 C. f5.6, 1/500 D. f11, 1/250 E.f8, 1/500
18. Landscape and nature photography usually expects the scene from close to far
away to be all in-focus. If you have a good lighting that let you choose
whatever aperture (f-stop) you want, which of the following would give you the
best chance to get the result you want?
A. f4 B. f5.6 C. f8 D. f11 E.
f16
19. Which of the following
white balance setting should you use when shooting in an orange-yellowish kind
of lighting environment?
A. Daylight B. Shade C.
Tungsten D. Amber E. Orange
20. Which of the following
would be a possible setting on your camera if you want to show a sharp and
clear specimen of an insect?
A. 1/4000s, f4 B. 1/2000s, f5.6 C.
1/1000s, f8 D. 1/500s, f11 E. 1/250s, f16
Would any of you try to explain what the answer should be and why? To make sure you understand why, I will ask the similar questions again in the final exam.
Another thing I need to mention is Ranger assignment is a crucial factor to whether you will pass this course or not. Not meeting the 7/7 requirement would mean you will very likely fail this course. We have 4 more issue to publish. Unless you are planning to drop the class, I would suggest you come in much more often and pick up assignment like shopping after the Thanksgiving day.
In the beginning of the semester, I did mentioned 7 hours per week is an average time you should spend on this class. If you had been spending more than 7 hours weekly for this class in the past, you will find yourself beginning to easy up. If you haven't, it is the time to pay your due, and it is going to be more than 7 hours because you started late.
Keep the momentum going! Come talk to me if you have any questions.
Dr. Lo
8. Answer: A Remember this idea: Polar bear +2, theater -2. You must underexpose otherwise the subject will be too bright to identify.
ReplyDelete11. Answer: A We talked about this one in class, a "stop brighter" is changing either the fstop or shutter speed (not both) to the next wider aperture or slower shutter speed which will then let in more light
18. Answer: E if its landscape and you can choose any, of the choices available, f16 has the widest depth of field so you can get everything in focus.
19. Answer: C Knowing your hues is very important, it's time to take your camera off AWB and adjust for tone and colorcast. Orange is created from Tungsten bulbs
20. Answer: E This goes back to the question earlier about depth of field. An insect is small and it doesnt say whether or not the insect is alive, but even if it was, 250th of a second is close enough to stop motion. But the importance is stressed on details, which means you need to stop down as much as possible.
Thanks to Jennifer's explanation. I have a little supplement to that:
ReplyDeleteQ8: Automatic exposure with no + or - (compensation) would always produce a mid-tone. Therefore, if you want a photo turn out to be brighter than mid-tone (snow and polar bear), use +. If you want a photo to be darker than the mid-tone (black backdrops), use -.
Q20: Insect specimen is dead. Because the are small, you will have to shoot very close, when focus point are very short (close), depth of field is going to be very small, which means you will have very little range of sharpness. In order to show more detail (sharpness), you will have to ask aperture to help. The smaller the aperture, the longer the depth of field, the sharper the details. Since the choices of answers were all with the same exposure, we should go with the one with the smallest f-stop.