Sun Spots
Nov 21, 2014 20:40:20 #
Can a welders mask filter be used for taking sun spot photographs?
thx
Jerry
thx
Jerry
Nov 22, 2014 10:56:18 #
Get a BAADER filter. Try Kenderick Astrophoto for one. Google them. This is the safest for your eyes and camera.
Nov 22, 2014 12:53:36 #
jkoar wrote:
Get a BAADER filter. Try Kenderick Astrophoto for one. Google them. This is the safest for your eyes and camera.
Baader film filters are known for sharpness and quality.
I make all of my filters from Baader sheets.
I am about to post a shot from this morning with a homemade 77mm Baader filter.
Nov 22, 2014 13:15:48 #
Nov 23, 2014 09:29:37 #
Nov 23, 2014 11:04:17 #
jkoar wrote:
Al - Where do you buy your Baader sheets?
http://www.highpointscientific.com/solar-filters-telescopes
They have 20x40inch sheets for $88.
Astrozap sells an 7x7 piece for $28. Since I have been building filters for scopes, the larger size was more economical.
http://www.astro-physics.com/index.htm?products/accessories/solar_acc/astrosolar was the last site I ordered from.
For direct visual you need density 5 material. Baader makes a density 3 for purely photographic use but it is not for direct visual. I have only used the density 5 material.
Nov 23, 2014 11:57:47 #
Nov 23, 2014 14:31:28 #
Albuqshutterbug wrote:
Baader film filters are known for sharpness and quality.
I make all of my filters from Baader sheets.
I am about to post a shot from this morning with a homemade 77mm Baader filter.
I make all of my filters from Baader sheets.
I am about to post a shot from this morning with a homemade 77mm Baader filter.
Amen to that, I tried the cheap solar films from eBay and I can't get a good focus.
Craig
Nov 23, 2014 20:07:32 #
jkoar wrote:
Thanks Al
Your welcome.
If you haven't, be sure and pull up the second link as they have a great write up of Baader filters and the process involved.
Best of luck to you and be extra careful if you do make your own.
Nov 23, 2014 20:08:47 #
CraigFair wrote:
Amen to that, I tried the cheap solar films from eBay and I can't get a good focus.
Craig
Craig
It may not be the cheapest but it is the best that I have found for the do it yourself and its what the filter makers are using. To me that speaks volumes.
;)
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