I LOVE finding out about different ways to appreciate the Sun and light in general. Use this forum to post your info or questions about various outside the mainstream ways to appreciate our life giving star!
Looking good John,I have just placed an order with Azur3d Print for the Sol'Ex casing and a few accessories,will get in touch with Shelyak later in the week to order the optical kit. Christian Buil makes it look so easy to set the instrument up in his videos so can you please enlighten me on what problems lie ahead.
Alun
Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
Sol'Ex SHG
80mm f/7 achromat used with pressure tune module off the Lunt with Lunt 100mm ERF
Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
Coronado SM40 (pre Meade) and BF10 filter set + SMII 60 richview DS etalon
Skywatcher EQ6 Pro and Ioptron CEM60
Then there is all the night kit which is far too long a list to write up here!
More images on view on my Flickr page...https://www.flickr.com/photos/alun_h/
can you please enlighten me on what problems lie ahead.
basically, his videos are good you must pay attention to details especially with slit collimator build
1) collimator lens is only 80mm FL need to get that focus right ( I think im still a tad off after 4 tries)
2) need to pay attention to pressure on dial or else slit will be off to one side
3) SW brightness settings are different if set to high you get black band thru center
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!
Thank you John,I can see where the problem with collimation focus lies as the box holding the slit plate has to be loosened off and slid in/out rather than acting on the lens itself so can well believe it is a fiddly job. As to Herschel wedge I have one I can use but I also have a Hoya pro ND 16 neutral density filter which I use with the 72ED and Lhires III with no damage to the glass slit plate.
Alun
Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
Sol'Ex SHG
80mm f/7 achromat used with pressure tune module off the Lunt with Lunt 100mm ERF
Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
Coronado SM40 (pre Meade) and BF10 filter set + SMII 60 richview DS etalon
Skywatcher EQ6 Pro and Ioptron CEM60
Then there is all the night kit which is far too long a list to write up here!
More images on view on my Flickr page...https://www.flickr.com/photos/alun_h/