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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


IMAGING SETUPS


IMAGING SETUPS (CORONADO SM90II)


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


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


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


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


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


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

A good session and nice crop of images, Pedro.

Stu.

Bom dia

Nice images and prominences o the West limb

Good disks. I see what you mean about that 90.

Thanks guys

The Coronado SM90II is still fighting with me...

Maybe it's a melon after all

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?

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.

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

CORONADO SM90 + BF15 (SOLD)


CORONADO SM90 + BF15 (SOLD)


CORONADO SM90II


CORONADO SM90II


CORONADO SM90II + CORONADO SM40II


2X CORONADO SM60


CORONADO SM60 + BF30


CORONADO SM60 + CORONADO SM40


CORONADO SM60 + CORONADO SM40


CORONADO SM40 + CORONADO SM40II


CORONADO SM40 + CORONADO SM40II (double stack)


CORONADO BF30


CORONADO BF10 + CORONADO BF15


CORONADO BF10 + CORONADO BF15


LUNT H-alpha B1200


LUNT H-alpha B1200


LUNT Ca-K B1200

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

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

That 90 might work well on the front of the 152 I think Pedro

Thanks Mark

I will give it a go, great idea

best regards

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

Alexandra

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.

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