Sol 4-11-2017
- Ibbo
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- eroel
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Re: Sol 4-11-2017
Steve:
Nice discs, though I think that you have to get rid of the hot spot on the lower left corner.
Have a nice and Sunny Sunday,
Eric.
Nice discs, though I think that you have to get rid of the hot spot on the lower left corner.
Have a nice and Sunny Sunday,
Eric.
- Ibbo
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Re: Sol 4-11-2017
Steve:
1-How do you have your system set up?
2-Have you tried the 60mm Lunt without the Coronado etalon?
3-Have you tried the 60mm Coronado etalon?
If both work OK, it is probably an adjustment issue of the second etalon, so I would first try each etalon separately to see if they work fine and get an even solar disc, then I would install the doublé stack etalon and make some test rotating it in front of your Lunt etalon until you get the best position, (don´t know if your Coronado has any adjustment at all) if so, then you will have to deal with that too.
I just have Coronado etalons, some old 40mm made by David Lunt, and also some new ones made by Meade like the 90mm one.
Hope some other friends jump in and let us know what they think,
Best regards,
Eric.
1-How do you have your system set up?
2-Have you tried the 60mm Lunt without the Coronado etalon?
3-Have you tried the 60mm Coronado etalon?
If both work OK, it is probably an adjustment issue of the second etalon, so I would first try each etalon separately to see if they work fine and get an even solar disc, then I would install the doublé stack etalon and make some test rotating it in front of your Lunt etalon until you get the best position, (don´t know if your Coronado has any adjustment at all) if so, then you will have to deal with that too.
I just have Coronado etalons, some old 40mm made by David Lunt, and also some new ones made by Meade like the 90mm one.
Hope some other friends jump in and let us know what they think,
Best regards,
Eric.
- Ibbo
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Re: Sol 4-11-2017
Thanks Eric
The Lunt is not too bad on Single stack.
Not tried the Coronado as sigle for a good while I will give it a try next time i get more than 30 mins of sun.
The Lunt is not too bad on Single stack.
Not tried the Coronado as sigle for a good while I will give it a try next time i get more than 30 mins of sun.
- yltansg
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Re: Sol 4-11-2017
Hi Steve,
Wish you all the best in getting uniform disks. Like what Eric mentioned, adjust the single etalon first and then move on to the double-stacked......
Alfred
Wish you all the best in getting uniform disks. Like what Eric mentioned, adjust the single etalon first and then move on to the double-stacked......
Alfred
- marktownley
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Re: Sol 4-11-2017
Nice job Steve!
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!
- Montana
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Re: Sol 4-11-2017
Lovely contrast on the features It does look like the ghost to me. Have you tried just tilting it a bit to get it just out of shot? My PST is like this, I get maximum on band contrast when the ghost is sat right on top. I have to just tilt it just off disc to image. The contrast suffers a little but not too bad.
Alexandra
Alexandra
- marktownley
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Re: Sol 4-11-2017
If you can get a circular polariser between the 2 etalons you'll kill off that reflection https://www.amazon.co.uk/BPLUSWCP77-Cir ... B0000BZLAD
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!
- Ibbo
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- marktownley
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Re: Sol 4-11-2017
Not sure, there will be some though...
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!
- Ibbo
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