While I wait for the funds for a proper ERF for a 100mm f10 achromat PST stage 1 mod project, I want to use a white light filter as the ERF. What kind of image will that provide?
Thanks,
Jack
White light filter as an ERF
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White light filter as an ERF
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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Re: White light filter as an ERF
Welcome to the forum!
You won't get a Ha image this way, it will cut too much light.
You won't get a Ha image this way, it will cut too much light.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: White light filter as an ERF
Thanks. How about welders glass combined with a UV IR cut Filter?
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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Re: White light filter as an ERF
Nope, fraid not. Welders glass is incredibly poor optically and would also cut the light too much.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: White light filter as an ERF
Fair enough. What is the most cost effective ERF source you know of for a sub-objective ERF considering I am willing to make it internal and smaller than the objective.
Can't swing $800 for a 100mm objective ERF.
Best,
Jack
Can't swing $800 for a 100mm objective ERF.
Best,
Jack
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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Re: White light filter as an ERF
I can only suggest checking out the options on the Telescope Service, Lunt and Beloptik sites.
http://luntsolarsystems.com/product/ene ... n-filters/
http://www.teleskop-express.de/shop/pro ... ation.html
http://beloptik.de/en/left/erf-protecti ... on-filter/
http://luntsolarsystems.com/product/ene ... n-filters/
http://www.teleskop-express.de/shop/pro ... ation.html
http://beloptik.de/en/left/erf-protecti ... on-filter/
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http://astronomicalspectroscopy.com
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"Imaging Sunlight - using a digital spectroheliograph" - Springer
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Re: White light filter as an ERF
Hi Jack
welcome to that wonderful site. Have fun in the sun.
Sometimes you can find the ERFs used on this site, on astromart, U.K. Astronomy Buy&Sell or astronomie.de
welcome to that wonderful site. Have fun in the sun.
Sometimes you can find the ERFs used on this site, on astromart, U.K. Astronomy Buy&Sell or astronomie.de
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
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Re: White light filter as an ERF
Neo,
Thank you for the internal ERF description. That is indeed encouraging.
Starry Jack
Thank you for the internal ERF description. That is indeed encouraging.
Starry Jack
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation