mark said:Robert:
Why would you use a split ND filter in a scene of such small difference between highs and lows?
You need to learn to think in f-stops. In the scene you have just described, you have metered a 3 stop range. That is, the background is 3 stops brighter than the tree. Using the Zone system, you determine where you want to place the tones of each area in the tonal range. If you place your background on Zone VIII, your tree will fall on Zone V. If you place your background on Zone VII, your tree will fall on Zone IV, which sounds more likely. You will set your camera for Zone V, which in this case would be 1/125 @ f8. Your tree will fall one stop darker than medium gray, and your background will fall two stops lighter.snegron said:Let's say I am using Porta VC, ISO 160 film outside and I want to photograph a tree and the surrounding landscape. The tree will be on the left of my frame and the rest of the scene will be on the right. There is more light on the right side of the frame, the tree has more shadows. I want to have as much detail from the tree as well as the background. It is late afternoon/early evening and my "tree" reading indicates 125 sec at F5.6, but my background reading indicates 125 sec at F16. Now what? Do I average it all out to 125 at F8, maybe F11? Will a spot meter give me the readings of the tree and the background and then I have to do the math and come up with the average reading on my own??
OK, first of all, you do not have to walk up to the subject to take an incident reading. If I am standing two feet in front of you and you reach out and take an incident reading in front of my face and then take another reading with the meter close to you (but with the dome pointed in the same direction), you will get the same reading. So if I am across the street from you, and there are no shadows falling on me that do not fall on you -that is, we are in the same light- you can take an incident meter reading right where you stand. This applies whatever the distance; as long as the subject is illuminated by the same light as you are, you can take the reading right where you stand, as long as you point the dome in the same direction.snegron said:My objective is that I am trying to get a meter reading without walking away from the camera. If I am 25 feet away or more from the subject and I can't walk up to the subject to get a reading, which meter can I use, reflective, incident, or spot?
Since the moon averages a fairly dark grey, the sunny 16 rule will expose it as such. However, we perceive the moon as quite bright. For it to appear in a photograph as we expect it to, use the looney 11 or perhaps better yet, the looney 8 rule. This topic is debated as hotly as the incident, reflected or spot meter issue.eddym said:. . . PS: This is why the "sunny 16" rule also applies on the moon. It is relatively the same distance from the light source (the sun) as the earth is.
mark said:Robert. Maybe i should try this. I have ordered two boxes of Velvia 50 for this falll shooting season and you know the film a hell of a lot better than I. I usually use Provia but this summer the greens were not doing it for me. Just not giving me what i wanted, hence the velvia 50 purchase, and, next payday, a box of the 100.
Note I said "on the moon," not "of the moon." In other words, an astronaut standing on the moon's surface should theoretically be able to use the sunny 16 rule just as we do on earth, except perhaps for differences caused by the lack of atmosphere on the moon. I believe we perceive the moon as quite bright because it is always viewed against a very dark background. Yes, you are right, exposing it to appear in a photo as we expect it to, given our mental image of it, would indeed require overexposure ("looney 11"?Jim Jones said:Since the moon averages a fairly dark grey, the sunny 16 rule will expose it as such. However, we perceive the moon as quite bright. For it to appear in a photograph as we expect it to, use the looney 11 or perhaps better yet, the looney 8 rule. This topic is debated as hotly as the incident, reflected or spot meter issue.
Provia is a great film, but probably won't give you what you are looking for. Velvia 50 is better choice. Try doing your fall color work with a warm polarizing filter (or polarizer and 81B) - I think you will be pleasantly surprised by the richness of the greens. Since, you are shooting LF, try one with the warm polarizer and one without as well.
Exposure to me is manipulating everything between white w/no detail, and black w/no detail with your meter, to line it up so the film represents it as you see it, while accepting the fact that the film will compress each tone from what your eye sees................................... plus the addition of either/both white w/no detail, black w/no detail to a shot, whenever it suits your purposes.
Either extreme w/no detail is a great tool to edit out/draw attention away from something(from the clothes to the face), to something else. So metering is used to enable the film to see something/print out w/detail, or to eliminate something you don't want the viewer to dwell on. That goes from 'high key' to 'silhouette'. In terms of landscapes, I always have decisions to make about the difference in illumination between the sky and the ground in the same shot, and how much I want the clouds to stand out for instance.
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