Search found 4 matches

by NightPhotographer
Sat Aug 11, 2018 12:12 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What is a blocking filter function?
Replies: 3
Views: 3058

What is a blocking filter function?

I want to use my telephoto lenses for solar prominence imaging. I need to use front mount filters since rear mount filters mess with focus. Lunt offers front mount Etalon but I have difficulty finding a front mount blocking filter. Is there any other filter with the same function that can be mounted...
by NightPhotographer
Mon May 16, 2016 4:26 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What does a blocking filter do?
Replies: 4
Views: 3697

Re: What does a blocking filter do?

is there a front fitted version of it? All I could find were rear fitted ones.
by NightPhotographer
Mon May 16, 2016 11:16 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What does a blocking filter do?
Replies: 4
Views: 3697

What does a blocking filter do?

What is the function of the blocking filter in a solar telescope?
by NightPhotographer
Thu May 12, 2016 3:16 pm
Forum: Solar Scope Modifications
Topic: Is the blocking filter necessary?
Replies: 2
Views: 3038

Is the blocking filter necessary?

Hello

I want to get a Lunt H-Alpha filter for solar imaging. Since I am not going to use my telescope for observing, I'm not sure if I need to buy the blocking filter as well. Is the blocking filter only a safety measure for solar observation?