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Transit of Mercury in the Spicule Layer. Phil took this great image with his Quantum 6 Scope, Solar Spectrum etalon and PGR Camera.

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Moving forward from solar cycle 24 to 25

March 26th Ha Session

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MapleRidge
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March 26th Ha Session

Post by MapleRidge » Sat Mar 29, 2014 1:16 am

Hi all...

I had a chance to do some imaging before lunch on Wednesday, and I was a bit unsure how they would turn out. The seeing was initially pretty stable, but it slowly degraded as the session progressed. My main interest was to try out an Explore Scientific 3x Focal Extender that I received a few days earlier. I was looking to find a barlow to put ahead of the Daystar filter on the days when the 4x Powermate is too much focal length. It also narrows the FOV a bit on the DSII mod and crops the edges off the 2.5x image which tend to be soft.

I started off with a set of full disk images through the LS80T/B1200 solar scope. There were several interesting proms in addition to the disk details, but I needed two separate exposures to get the bright and faint proms. The image below has the two limb shots side by side, with the disk image added in.
Full_Disks.jpg
The next two images compare the views of AR 2014 through the CR-150/DSII/B1800Ha modded scope using the original 2.5x barlow and the 3x ES unit. First is the 2.5x barlow:
25x_CR150_DSHa_153306.jpg
And the 3x focal extender below:
3x_CR150_DSHa_155328.jpg
The next pair of images use the same barlow comparison but using the Istar scope with a 100mm ERF and the Daystar Quantum filter. I am glad to see the 3x barlow works as Teleview does not offer a 3x option in their Powermate series, and these telecentric barlows are essential for the Daystar units to work. Explore Scientific offers 2x, 3x, and 5x in their series.

Below is AR2014 with the 2.5x and the second image is the 3x version:
25x_IS_DSQ_163041.jpg
I have
3X_IS_DSQ_163442.jpg
The rest of the images are through the Istar/Daystar system and the 3x ES focal extender...I'm liking this system, just need a full aperture ERF to get the full 150mm potential ;)
3x_IS_DSQ_163530.jpg
3x_IS_DSQ_163731.jpg
3x_IS_DSQ_163839.jpg
I have some prom images as well, but I seem to be maxed out on adding images...will make a new post.
http://solarchat.natca.net/viewtopic.ph ... 28#p108328

Link below:


Brian
Brian Colville

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Re: March 26th Ha Session

Post by mattwastell » Sat Mar 29, 2014 2:56 am

The x3 looks pretty good - a worthy addition to the set up!
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Re: March 26th Ha Session

Post by marktownley » Sat Mar 29, 2014 8:54 am

A really nice set of images there Brian! You certainly have a lot of scope / filter combos
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Re: March 26th Ha Session

Post by MapleRidge » Sat Mar 29, 2014 6:22 pm

Thanks Matt and Mark...

I do like the 3x barlow...need to try I ton the C14 for Mars next clear night too.

Mark...too many options...need to rationalize what I'm using and consolidate the regularly used pieces of kit!

Brian
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Re: March 26th Ha Session

Post by Derek Klepp » Sat Mar 29, 2014 9:46 pm

The 100 mm seems similar in clarity to what I get with the 100mm Lunt.I find different Barlows have varying internal reflections and this varies again when I use coloured filters in the train as well.As for rationalising that farming background will not let you throw anything out.Just get another cupboard.

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Re: March 26th Ha Session

Post by MapleRidge » Sat Mar 29, 2014 11:47 pm

Hi Derek...

Thanks for your comments. Nice to hear how you would compare the images with your experiences.

As for the barlow, I have only tried it on solar thus far...maybe clear Sunday night here and I Can try Jupiter and Saturn again. The big test of the 3X will be through the R/G/B/IR filters on Mars...time will tell. I may have to skip solar work Sunday as I have to move new syrup equipment to the bush when ever I can borrow the neighbors loader tractor to move everything over, then spend time getting it set up and start boiling.

Brian
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Re: March 26th Ha Session

Post by solar » Sun Mar 30, 2014 7:24 am

Very interesting combos Brian. :bow2
Vixen 130ss SolarMax 90 BF30 EQ6 Pro, LX200 12", C8 CG5, Megrez80, SBIG2000 MXC,

PGR 2.8 Grasshopper PGR Flea3, DMK21 ASI 120mm Lunt B1800 Cal-K + other stuff.

Skywatcher 150mm PST Mod2

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Re: March 26th Ha Session

Post by MapleRidge » Sun Mar 30, 2014 1:38 pm

Thanks Ralph

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Re: March 26th Ha Session

Post by Valery » Mon Mar 31, 2014 12:10 am

Brian, what is the aperture of your 150mm scope now? As I understand it now limited by ERF filter size?

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Re: March 26th Ha Session

Post by mbucky » Mon Mar 31, 2014 12:31 am

nice work brian, lots of interesting details. the full aperture should be killer!
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Re: March 26th Ha Session

Post by swisswalter » Mon Mar 31, 2014 4:48 am

Hi Brian

very fine shots. I like the 3x barlow pic most. Have a good run on boiling the sirup
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Re: March 26th Ha Session

Post by Montana » Mon Mar 31, 2014 9:17 am

A nice series, there is plenty of fine detail with the 3x :D

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Re: March 26th Ha Session

Post by MapleRidge » Mon Mar 31, 2014 4:17 pm

Hi all...

Many thanks for the comments :bow2

Valery, the DSII is still on the CR-150 with the internal ERF which gives the full, in-obstructed aperture. I wasn't willing to remove the DSII and install a focuser on the CR-150 in order to use the Daystar, so that filter was used on the Istar OTA with a 100mm ERF. I had the same effective focal length on both setup, just limited by the external ERF on the Istar OTA.

Brian
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Re: March 26th Ha Session

Post by eroel » Mon Mar 31, 2014 4:56 pm

Brian:
Hands down wins the 3X, it delivers a much cleaner and even flurry images.
Best regards,
Eric.

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Re: March 26th Ha Session

Post by MapleRidge » Tue Apr 01, 2014 2:22 am

Thanks for your comments Eric...I was thinking along same lines myself.

Brian
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