Today's SUN (20180325) | SM90II images

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pedro
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Today's SUN (20180325) | SM90II images

Post by pedro » Sun Mar 25, 2018 12:41 pm

Today's SUN (20180325) | SM90II images

Tried the CORONADO SM90II after being serviced twice and the contrast is still low. I guess I am going to use it in a double stack configuration...

WEBLINK:
http://re.apaaweb.com/sun_h_alpha_2018-03.html

Image
IMAGING SETUPS

Image
IMAGING SETUPS (CORONADO SM90II)

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SUN (20180325) H-alpha DISK & PROMS (09:30 UTC). TV101 F/5.4, SM90II, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20180325) H-alpha DISK & PROMS (09:30 UTC). LUNT60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20180325) H-alpha DISK & PROMS (09:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20180325) H-alpha DISK & PROMS (09:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20180325) CaK PROMS (09:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20180325) WL, CaK & H-alpha (09:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M
Last edited by pedro on Thu Mar 29, 2018 12:13 pm, edited 1 time in total.

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Re: Today's SUN (20180325) | SM90II images

Post by Carbon60 » Sun Mar 25, 2018 5:38 pm

A good session and nice crop of images, Pedro.

Stu.
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Re: Today's SUN (20180325) | SM90II images

Post by rsfoto » Sun Mar 25, 2018 5:40 pm

Bom dia

Nice images and prominences o the West limb
regards Rainer



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Re: Today's SUN (20180325) | SM90II images

Post by marktownley » Sun Mar 25, 2018 8:37 pm

Good disks. I see what you mean about that 90.
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Re: Today's SUN (20180325) | SM90II images

Post by pedro » Mon Mar 26, 2018 8:37 am

Thanks guys

The Coronado SM90II is still fighting with me...

Maybe it's a melon after all

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Re: Today's SUN (20180325) | SM90II images

Post by marktownley » Mon Mar 26, 2018 9:06 am

It's even which means it's not needing much tilt. I just think it has a wide bandpass. Have you tried it with the newer 90ii you own?
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Re: Today's SUN (20180325) | SM90II images

Post by Derek Klepp » Mon Mar 26, 2018 9:13 am

Thanks for this Pedro.Not very impressive in relation to the price and promotion for the product.Eric gets great results from his older version it’s a pity with the consistency of these products.

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Re: Today's SUN (20180325) | SM90II images

Post by pedro » Mon Mar 26, 2018 2:17 pm

Thanks Derek and Mark

These images were obtained with a SM90II that was serviced twice (Mexico factory and Beloptik)

Maybe I will try with a SM60 Pre-Meade (double-stack)

Pre-Meade etalons are MUCH better. Unfortunately I sold mine a few years ago

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Re: Today's SUN (20180325) | SM90II images

Post by pedro » Mon Mar 26, 2018 3:04 pm

Image
CORONADO SM90 + BF15 (SOLD)

Image
CORONADO SM90 + BF15 (SOLD)

Image
CORONADO SM90II

Image
CORONADO SM90II

Image
CORONADO SM90II + CORONADO SM40II

Image
2X CORONADO SM60

Image
CORONADO SM60 + BF30

Image
CORONADO SM60 + CORONADO SM40

Image
CORONADO SM60 + CORONADO SM40

Image
CORONADO SM40 + CORONADO SM40II

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CORONADO SM40 + CORONADO SM40II (double stack)

Image
CORONADO BF30

Image
CORONADO BF10 + CORONADO BF15

Image
CORONADO BF10 + CORONADO BF15

Image
LUNT H-alpha B1200

Image
LUNT H-alpha B1200

Image
LUNT Ca-K B1200

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Re: Today's SUN (20180325) | SM90II images

Post by rsfoto » Mon Mar 26, 2018 4:56 pm

Hi Pedro,

¿ do you have a H-alpha accessory store ? Just joking.

One question: I see you have a BF 30. How many years and did they ever rust ?

I have 3 of them and already got 2 replacements in less then 10 years and now the new ones are starting to rust again and I have them in a very dry climate. Could that be a problem ?

Saludos
regards Rainer



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Re: Today's SUN (20180325) | SM90II images

Post by pedro » Mon Mar 26, 2018 5:37 pm

Hi Rainer

I use my BF30 all the time (TV101 + SM60 and LUNT60)

It has never rusted. I bought second hand a couple of years ago

The LUNT B3400 I also have had a bad case of rust (ITF filter). I was able to deal with it by soaking the filter in Baader cleaning fluid (literally)

My climate is not dry so I could not tell if this is a problem

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Re: Today's SUN (20180325) | SM90II images

Post by marktownley » Mon Mar 26, 2018 7:16 pm

That 90 might work well on the front of the 152 I think Pedro ;)
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Re: Today's SUN (20180325) | SM90II images

Post by Montana » Tue Mar 27, 2018 2:05 pm

Still some lovely images Pedro, the Sun is a bit quiet for comparing contrast but yes, it doesn't look as good as the others ;)
:bow :hamster:
Alexandra

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Re: Today's SUN (20180325) | SM90II images

Post by eroel » Tue Mar 27, 2018 3:31 pm

Pedro:
Nice session and presentation.
Yes, your SM90II need a DS.
My best Coronado filters are the very old stacked 40mm picked by Bill Dean and David Lunt himself, these were made in the Isle of Man.
Have never decontacted or rusted.
The Solarmax 90-DS works nice, but had to change it several times until Bill D and Eric B, helped me match a set.
Best regards and fuerte abrazo,
Eric.

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Re: Today's SUN (20180325) | SM90II images

Post by pedro » Tue Mar 27, 2018 5:00 pm

Thanks Eric & Alexandra

I'm already building an adaptor to test it together with the LUNT152. Maybe it will be a nice option (Mark's suggestion)

best regards
fuerte abrazo

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