Visual Observation with N3,8 Solar Shield

this is the main message area for anything solar :)
Post Reply
tomecz
Oh, I get it now!
Oh, I get it now!
Posts: 20
Joined: Sun Mar 22, 2015 7:59 pm

Visual Observation with N3,8 Solar Shield

Post by tomecz »

Dear All,

I like observing sundown. When I observe via lunt80 telescope or standard scope with Baader N5 Solar Shield, at he very sundown the view is very dark, almost black.

Then I tend to switch to standard scope or binoculars with Baader N3.8 Solar shield. The view is ok. Is it safe? Do I need additional IR/UV cut filter?

thank you!
tomasz


User avatar
Merlin66
Librarian
Librarian
Posts: 3970
Joined: Tue Dec 13, 2011 1:23 pm
Location: Junortoun, Australia
Has thanked: 173 times
Been thanked: 615 times
Contact:

Re: Visual Observation with N3,8 Solar Shield

Post by Merlin66 »

If the intensity of the sun at sunset is low, then yes the ND3.8 would be OK.
It is normally recommended that a ND4 is the minimum for safe visual observing.


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy  
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
Post Reply