 Mike Turner |
Moon Photography I want to take a good picture of the moon. I have two questions. 1.) Previously, I have taken pictures using 400 speed film, 75-300mm telephoto lense, and Canon Rebel 2000. The pictures have come out grainy (not enough light) even though I have the lowest aperture (5.6). Some come out OK but are still grainy. I have also went +/- 1 f-stop, still grainy. I also receive a moon-spot (like a sun spots). What would cause this? How would I prevent against it? I am going to go to 800 or higher speed film next. I think that will help a lot. 2.) Also, even the pictures that are real good still have the moon over-exposed. How would I capture the moon's craters and indentations, being so bright, when it's framed against the dark night sky? Does that make sense? Thanks in advance,
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Jeff S. Kennedy |
The tricky part of photographing the moon is that, generally speaking, your surroundings are dark and the moon is a sunlit object. There isn't a film made that can handle that contrast. Since the moon is a sunlit object, to expose it correctly you must follow the Sunny 16 rule. In other words, use a shutter speed that is equivalent to the film ISO (ISO400 film = 1/500th ; ISO800 = 1/750th or 1/1000th if your camera doesn't have 1/750th) and an aperture of f16. Some prefer to open a stop (f11) so experiment and see what you like. There are a few of ways to have a properly exposed moon within the context of a properly exposed landscape. One is to make a double exposure. You shoot the moon on a frame and then shoot the landscape (or sky) on that same frame exposing for each seperately. Another method that works when the sky isn't completely dark is to use a graduated neutral density filter to bring the exposure of the moon down a few stops. And of course the modern way is to digitally add the moon to whatever shot you want.
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Mike Turner |
Jeff, First, what are you doing there at almost 8:00pm. Go home - enjoy life. Just kidding, I didn't mean to keep you there at work. Thanks for the tips. I think I will try the double exposure. I have been wanting a reason to mess around with that function. I probably need to learn more about filters too. I guess what I am saying is thanks for the ideas (except for the digital option - that's cheating) and for staying late to answer my question. Take care & blessings, ----- Proverbs 3:1-2
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John A. Lind |
a. It takes about a 1200mm lens to fill a 35mm film frame with the moon. You can use this to gauge how big the moon will be in the photograph based on the focal length you use. b. Be cautious about using long shutter speeds. The moon is orbiting and the earth rotating under it. The combined motion will blur the moon if your shutter speed is too long. The longer the focal length used, the more pronounced the effect. At 600mm I was continuously having to reposition the camera between frames made about a minute apart. Note its direction of motion in the viewfinder and frame slightly ahead of where it will be, then wait until it's in position. I try to keep shutter speed at 1/30th with 600mm. Slower risks blurring. c. If it's a half-moon or crescent moon, you will need slightly more exposure, as the moon is sidelighted by the sun. However, you shouldn't need much more than about one stop more even with a crescent. d. A crescent, although only a sliver, shows the dimensional quality of the mountains and craters that are illuminated, because of the sidelighting. Don't discount shooting a crescent moon some time. I've uploaded one I made about a year or so ago using a 600mm lens. Image is cropped to make it about twice the size of the full frame. BTW, I'm writing this from home. :-) -- John
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