I don't know about actual in-camera stuff to do this, but you could just take multiple shots of the scene, layer them in photoshop, and then use layer masks to brush out the people.
http://dsphotographic.com/index.php/...m-your-photos/
Thanks for your comments, but I already know how to do it in Photoshop. I'd like to take one shot rather than spend a bunch of time in Photoshop. Also, I'd like to expand my photographic capabilities with this filter technique, so I'd like comments to be focused on this approach. Thanks.
... how many stops depends on what sort of light the scene has...
This is precisely the recommendation I'm looking for, and based on the lighting information I mentioned in the thread-starter, I've given you all the information you need to make this recommendation.
Anyhow, the darkest filter I can find is a 10 stop ND 3.0. I'm just not sure if it will be enough, or if it'll be too much. I need someone with hands-on experience to guide me. I've also heard of people coupling a linear polarizer with a circular polarizer for an adjustable ND filter. I'd consider this route if I wasn't so concerned that there will be color shifting.
This is precisely the recommendation I'm looking for, and based on the lighting information I mentioned in the thread-starter, I've given you all the information you need to make this recommendation.
Given your vague description of "day light" and your lack of knowledge on how to make long exposures, I'd say you're not really in a position to tell someone whether they have or have not received enough information to make a recommendation.
Precisely, but as far as I know, we both live on planet earth, so I'm asking for your judgement call based on the range of light intensity around peak daylight. This is not a scientific process. We are not in a controlled environment where I can quantify the amount of light and report it back to you. There's no way I can tell what the intensity will be a week or month from now when the shot presents itself. There's no way I can say 4 pm, because 4 pm in San Diego is going to have a different light intensity than London. I said "daylight" because that is the best information I can give you.Funnily enough, my "day time landscape shots" tend to have a very wide range of exposures, different DoF requirements, different HDR or focus stacking, how well your camera does long exposures, long exposure noise reduction comes into play...
Sorry, Rebel XTi f/22 and 30" exposure limits unless I go to bulb.Plus, I'm aware I'm shooting with a Nikon D2x, which makes f/11 the limit of what I can shoot without running into diffraction limits.
What sort of people? What kind of movements? Is my guess any better than yours?So no, you really haven't given enough information- nor have you defined what sort of people, what sort of movement those people make...
3 hours before sunset at f/22 required a 1/13 exposure, which means to max my 30 second exposure limit, I'd need an 8.6-stop ND filter. So, the ND 3.0 should work. Math is not the problem for me. The problem is that I don't have the practical knowledge to know if a 30 second exposure is going to remove random people doing random things from a wide variety of scenes. I'll be shooting in Washington D.C. this weekend. Who knows what the lighting conditions are going to be?...just look at the apertures and shutter speeds you normally shoot at, then do the math based on subject movement- or just pick up a couple of ND filters and stack them up and see what you get. Aim for ~5-10m exposures as a starting point. Obviously if you're shooting in blue sky at noon at 1/500th of a second, 10 stops is only going to get you to 2s, but ~7-8 stops after that you'll be in the ballpark. If you've got an aperture or two of headroom that changes things. You may actually be better off combining multiple exposures off the same tripod position though.
You can stack NDs, obviously your camera's light-handling characteristics are going to have some say in how well that works- you might try some unfiltered long exposures to see what your camera's sweet spot is time-wise.
Given your vague description of "day light" and your lack of knowledge on how to make long exposures, I'd say you're not really in a position to tell someone whether they have or have not received enough information to make a recommendation.
Sorry, Rebel XTi f/22 and 30" exposure limits unless I go to bulb.
Some of you are trying to help, but I'm getting the feeling that none of you have done what I'm trying to do. Nobody has posted a picture of their work or described hands-on experience. I feel like I'm asking this question in the wrong forum. Hopefully I'm wrong about this.
You could say apparent lack of knowledge and that argument would carry more weight. I'll tell you what--I'll start caring what you say when you post a photo you took using the technique under discussion as credentials to participate in this discussion. If you can't do that, and don't have anything constructive to say, don't contribute to this thread.
Some of you are trying to help, but I'm getting the feeling that none of you have done what I'm trying to do. Nobody has posted a picture of their work or described hands-on experience. I feel like I'm asking this question in the wrong forum. Hopefully I'm wrong about this.
Or that I'm asking the wrong people. I bet almost nobody in this forum could meaningfully answer any question I may have on the versatility of Rh(I) as a hydrosilation catalyst....if you keep finding that no one has the answer you're looking for, realize that either you're not asking the correct question or perhaps you don't understand the correct answer.
But in any case here's specifically what I own that lets me take this sort of shot:
Singh-Ray Vari-ND filter
B+W #102 filter (4x)
B+W #106 (64x)
Precisely, but as far as I know, we both live on planet earth, so I'm asking for your judgement call based on the range of light intensity around peak daylight.
This is not a scientific process. We are not in a controlled environment where I can quantify the amount of light and report it back to you. There's
no way I can tell what the intensity will be a week or month from now when the shot presents itself. There's no way I can say 4 pm, because 4 pm in San Diego is going to have a different light intensity than London. I said "daylight" because that is the best information I can give you.
Sorry, Rebel XTi f/22 and 30" exposure limits unless I go to bulb.
What sort of people? What kind of movements? Is my guess any better than yours?
3 hours before sunset at f/22 required a 1/13 exposure, which means to max my 30 second exposure limit, I'd need an 8.6-stop ND filter. So, the ND 3.0 should work. Math is not the problem for me. The problem is that I don't have the practical knowledge to know if a 30 second exposure is going to remove random people doing random things from a wide variety of scenes. I'll be shooting in Washington D.C. this weekend. Who knows what the lighting conditions are going to be?
Some of you are trying to help, but I'm getting the feeling that none of you have done what I'm trying to do. Nobody has posted a picture of their work or described hands-on experience. I feel like I'm asking this question in the wrong forum. Hopefully I'm wrong about this.
Daylight is intentionally vague because I'll be shooting in a wide-variety of light intensities, and because that's all the information I have. I'm asking for help so I can prudently deal with this variety. If that requires multiple filters, then that and the type of filters is the advice I'd like to receive.
You could say apparent lack of knowledge and that argument would carry more weight. I'll tell you what--I'll start caring what you say when you post a photo you took using the technique under discussion as credentials to participate in this discussion. If you can't do that, and don't have anything constructive to say, don't contribute to this thread.
To be honest, I've never tried to remove _everybody_ from a photo (and I like the various degrees of motion you get from people with, say, a 4-5 second exposure). I can guarantee that, in most settings, 30 seconds won't be enough. There's always one or two people that aren't going to budge.
Cool. What kind of exposure times do you use to get people out of your scenery? Is 30 sec. enough, or do you require something on the order of minutes? Do you notice any color shifting with the Vari-ND filter?
Looking at my shots I'v taken I most just get "blurred people", not "gone people"
You would be much better off doing multiple shots and compositing them together.
You are going to need "way long" exposures to the point where you will have LOTS of problems with thermal noise in the sensor.
You are best off taking a serioes of short exposures during lulls in the wind.