funoooo 寫:If I buy the Herschel Wedge set,
Do I need the other filter for photo?
For example: David mention the H-alpha filter, 巴德Green Continuum濾鏡, and so on.
You don't need to buy H-alpha filter for this photo.
For best photography performance, you will need to add the continuum filter in addition to the Herschel Wedge set. The daytime seeing is usually very poor and the green continuum filter will help to reduce the problem.
I don't know if the photo mentioned was taken with or without the continuum filter. But don't expect such photo to come out automatically. For high magnification pictures, you need big aperture and very good seeing as well. A huge sunspot helps as well, of course. As you can see, a lot of these issues are beyond our control.