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No.. unfortunately you can't stack enough of these to use for the eclipse. You'll generate heat in every one of them and it is not a safe alternative to a solar filter.. and if you try it anyway, don't look through the viewfinder. And expect some dead spots on your sensor after.
Sorry, there was a problem. Please try again later.It's recommended that you have at least a 12-stop filter for shooting the sun. With that in mind, stacking 2 would give you a maximum of 17.2-stops which should be plenty good to shoot the eclipse. The thing to remember is that the more glass you put in front of the lens, the more the picture quality will be effected by chromatic aberrations, softness, etc....
Sorry, there was a problem. Please try again later.NO! Do not stack ND filters for shooting the sun or an eclipse. You need either special film sheets for shooting the sun, or a specialized ND100000 lens filter. Those are usually more expensive. Between $150 - $300. They have a special coating that blocks UV rays. Standard ND filters do not block UV rays. Also stacking filters will drastically reduce the quality of your photo. You may be able to shoot the eclipse during full totality with an ND filter, but to be honest, I wouldn't Its not worth the risk. Also if you are not shooting with a super telephoto lens(like 800mm minimum), then its just not worth attempting. I wouldn't even waste the money on Solar film or filters unless you can zoom in close enough to the sun. If you don't have a long enough lens, you're just taking a picture of a black disk and a light ring around it. You're better off just enjoying the event for what it is. Just my opinion.
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