New Internal Double Stack for LS100THa
Posted 24 April 2013 - 11:44 AM
Double stacking provides a truly enhanced high definition view of the Sun's surface details. It lowers the band pass of the system from <0.7 Angstroms to <0.5 Angstroms which really makes the surface “pop”!
The LS100THa can now be internally double stacked (DSII/LS100T) at time of purchase or anytime thereafter. The LS100THa does not need to be returned to the factory for double stacking as long as you have the red anodized front cell on the scope. If you have an older model of the LS100THa with just a white tube (and no red) you will need to upgrade the scope before using the internal double stack DSII/LS100T. The “glow” that is talked about in the DSII for the LS80THa is greatly diminished.
We will start shipping the first units the beginning of June.
Posted 24 April 2013 - 12:21 PM
Posted 24 April 2013 - 03:19 PM
This does not effect your order unless you change it. We are still offering the front mounted double stack (LS100FHa) for the LS100THa scope. The front mounted double stack (LS100FHa) will preform better than the internal and will not have any glow which you may see in the internal. Please let me know if you have any other questions.
Posted 24 April 2013 - 03:27 PM
This new DSII sounds exciting.
I am wondering in what way the LS100F would perform better than the new internal DSII disregarding the glow from the DSII. Is it because there will be a smaller sweet spot with the DSII. The LS100F does have the 3 small obstructions and I always wondered if performance would be better if it were unobstructed.
Posted 24 April 2013 - 06:03 PM
The front LS100FHa filter will perform better than the internal module this is because of the extra lenses we need in the system to collimate the light. In the internal module we have a collimating lens before the etalon to collimate the light and a refocus lens after the etalon. These lenses can create a slight glow. We do our best to minimize it and have done better with the DSII/LS100THa but it can still be there. You will not have this with a front mounted double stack because it does not have the extra lenses. I would say to most people the glow is not an issue but if you are doing a lot of imaging and do not want a glow than you may be happier with the front double stack. That said the internal double stack is a lot less expensive because we use a smaller etalon.
Please let me know if you have any questions
Posted 25 April 2013 - 07:45 AM
Posted 25 April 2013 - 12:42 PM
Glad to hear you are enjoying your LS80 DSII. At this time we are not looking to make any changes to the LS80T DSII. Please let me know if you have any other questions.
Lunt Solar Systems
Posted 26 April 2013 - 11:29 AM
What's the retail for?
Posted 26 April 2013 - 12:02 PM
The lead time for a LS100THa is about 3 months (check with our dealers because some may have them in-stock) and the DSII/LS100T will start shipping in June.
The price for the DSII/LS100T is $1,798.00. The price for the LS100THa depends on which blocking filter you choose. I have listed them below. Please let me know if you have any other questions.
LS100THa/B1200 - $4,647.00 mostly visual some imaging
LS100THa/B1800 - $4,997.00 visual and imaging
LS100THa/B3400 - $5,797.00 visual and imaging use if you have large chip
Lunt Solar Systems
Posted 27 April 2013 - 02:58 PM
Now that the internal DS is out for the 100mm,do you have an idea when the internal will be released for the 60mm?
Posted 03 May 2013 - 12:56 PM
We will not be making a internal double stack for the LS60THa scopes. We already offer two ways of double stacking with either the LS50FHa or the LS60FHa filters. Please let me know if you have any other questions.
Lunt Solar Systems