Leave this economical minimalism to Marty. Do not allow his advices to limit your flight ahead Unlike Marty, but with correctly optimized and large setup. And, of course, with a correct image processing. no tuny 150mm hole, no 50mm chinese ultra-economical micro derf. Valery Hi Valery, I'm not sure...

Thank you all, :bow The Western limb prom has vanished, lifted off and broke up. But that big Southern quadrant group is larger than yesterday, truly a big prom today! I'm clouded over so likely will not see it. It's in a lovely position next to some activity near the limb too. If you have a moment ...

Hey all, I got a clear morning and despite all the nasty storms and dust clouds, seeing was decent for the first little bit of my day. The chain of filaments on the limb is fantastic and there are two large prominence groupings. They were bright enough to capture even in Calcium. The big chain of fi...

lacks all the issues of the PST. As long as there aren't focuser issues with lack of travel etc for imaging... That's true, but something tells me it'll work out. A PST cannot be altered at all for imaging without major reconstruction, the internal big prism is ridiculous and the focus system is re...

Hey all, It's $599 new. That $299 price is the 50% deposit for pre-order and the other 50% is due before delivery. Still, this is exciting, good to see something replace the old Lunt 35 and SM40 and take a stab at the PST that Lunt originally came up with anyways. $599 is still a good price for a 40...

Hey all, Anyone looking at this new Lunt 40mm F10 Solar Scope? It's $599 new. The etalon is front mounted in a t-max tuner. I'm not sure if it's clear aperture or not. I'm very curious if it will be gaining a double stack module that is also clear aperture or not. Very interesting seeing Lunt taking...

Hi Nebu, It's actually very simple. It's very obvious when you look at it. The holes in discs are to turn them. The notches in rings are to turn them. Really all there is to it. The only thing about any PST is each section generally is glued/siliconed/something so it doesn't open easy and you have t...

I think I’m getting it right. The Lunt number is the size of the filter. The reflective filter in front is a Derf to protect the Ca filter. In order to double stack it I would need another Lunt Ca filter only to tilt behind the one with the Derf. I searched for a skybender but only came up with a d...

Now that is really cool!

Very best,

Do you know if the Lunt filter can be removed from its module and stacked with another Ca K module with blocking filter? And if one gets a 600 model will it be acceptable for DS? If you believe the ad on EBay the Omega has a bandwidth of 2A. Since I have the filter I might just try tilting it. Heya...

Heya, Not much going on today despite having a clear sky this morning again in this rainy wet humid part of Florida's summer cranking up. The solar minimum persists. There are two small plages that are visible and a smaller but fair prominence. Took at look at them in two scales with a 60mm at criti...

Hi Marty As far as auto focus goes have you tried nfocus-nstep by Rigel? I have a plain dc motor for all my gso, ES and Lunt focusers. He even has one for the Coronado helical focuser at least until I upgrade to a moonlite. I have been thinking of double stacking my Lunt Ca K filter with another Lu...

Alfred, Is your primary D-ERF tilted at all? If not, I would add a small 1 degree tilt to it via rubber gasket under 1/2 of the filter inside the holding cell. It should handle your reflection. I too am curious about the innards of a Lunt module in terms of what is in front of the actual narrowband ...

Good question Mark! Marty, thank you for the .xlsx very handy indeed. The CR-150 ED is 'almost brand new' (brown paper under the rings as per original shipment etc.) which is hard to believe, it is an interesting scope, and the cork? pads with the focuser are new and the rack is still holding gluey...

Is the last image taken at 150mm or stopped to 120mm Marty? I think it was 150mm if I recall with an IMX174 (this was before I moved on to the 290MM); seeing was incredible, like 0.3~0.4 arc-seconds. I will see if I still have my capture settings file from back then when I get home. I hate to give ...

Hi John, And I watch and watch and by eye I trigger the capture. With my recent captures I have triggered more by eye than the ‘auto’ setting capture button. I too do not use automated capture; I merely record seeing and watch the metrics. Seeing the trend is more important to me. Seeing values tell...

we all know that Imaging is only as good as the tools at the disposal of the operator. Hey John, I would say that imaging is only as good as seeing conditions allow, and its the operator's choice to image within the limits of the seeing. Seeing is everything , especially for 393nm, as these short w...

Thanks all :bow The weather has been miserable, a very hot and humid summer this year. Back to back tropical storms with two hurricane warnings already and it's not even really hot yet. I may not see much this summer. I was super disappointed to miss that last sunspot for the entire 12 day transit d...

Thanks all :bow The weather has been miserable, a very hot and humid summer this year. Back to back tropical storms with two hurricane warnings already and it's not even really hot yet. I may not see much this summer. I was super disappointed to miss that last sunspot for the entire 12 day transit d...

Hey all, It's been a hot minute that I've seen the sky after these past two tropical storms here in Florida. Gonna be a nasty hurricane season I wager. By chance, I went out this afternoon between clouds and showers and was able to take a look at the filaprom near the southern limb. I completely mis...

Hey all, It's been a hot minute that I've seen the sky after these past two tropical storms here in Florida. Gonna be a nasty hurricane season I wager. By chance, I went out this afternoon between clouds and showers and was able to take a look at the filaprom near the southern limb. I completely mis...

Heya, It's been a hot minute since I've seen the sky at all. Florida has been a hot mess of rain, humidity, storms, clouds, clouds on top of clouds, etc. Just nasty. Anyhow, there were a few sucker holes today between clouds but it was at the worst time of day for me for seeing and for the heat, 2pm...

Hey all, Get your scopes out, there's a lovely huge prominence field on the North Western limb this morning! https://live.staticflickr.com/65535/49859173306_23e606f921_b.jpg https://live.staticflickr.com/65535/49859485817_97ffebdaca_b.jpg 150mm F10 Frac + Baader Red CCD-IR Block (Internal sub-apertu...

Heya, Woke up to a fairly good sky this morning, a weird cold snap between storm bands. Seeing was decent at first but had a lot of variability, still, it supported the larger apertures this morning and our two lovely little AR's are still together and rounding the limb as the cycle 25 AR leaves our...

Thanks all,

The pier works great, it's janky and maybe not that classy, but it was dirty cheap and is really sturdy!

Very best,