inapottingshed

Can anyone help with the size of the fixing screw/grub screw that secures a moonlite dual speed focuser to a Celstron SCT back?

Perhaps the best thing to do is get the roof repaired then see how it goes.

How can I go about ventilating? We never had condensation/damp years ago. It seems to be recent. Admittedly, there is a lot more heat in the house due to central heating and more electrical devices.

I used one of those before, at another property. They're good.

I'm in need of a dehumidifier for temporary use in a loft space (unoccupied) until roof repairs are completed and for later use in my yet to be built ROR obsy. It needs to be quiet, able to operate (on/off) by a power relay/timer and a catch tank with as safe shut off. I was looking at the Pro Breeze 1500 Premium (1500ml) which is available for around £70. It uses a peltier, is suitable for approx 220 sq ft / 6 cu metres, and operates in 10-50C. It's on the small side for the loft and not sure of 10C is low enough for the loft or obsy. Any suggestions please (budget roughly £100)?

What material are they made from?

Tactile/touch screen is optional/nice to have (I'd be OK with removing a glove). Really looking for a pair that are OK to use with focuser, laptop, etc. Ski gloves are warm but too bulky (from what I have seen). Not overly keen on exposing fingers...

Will be interested to hear how they perform.

Happy New Year to all. Any suggestions or recommendations for tactile gloves? I have a pair of Ronhill cycling gloves which means I can use my phone touch screen but they are a bit thin in this cold weather.

No.

I'm planning to set up my C 9.25 for planetary imaging at f10 and found a back focus of 5.472 inches indicated on the Celestron Website. I take it this distance is measured from the rear of the OTA assy to the camera sensor? How much tolerance is there from this distance in average seeing?

Thanks for the pics. Can their transmission levels really be that high?

SVBONY seem to have very high transmission (https://www.svbony.com/lrgb-filter#F9170A) according to the chart.

I'm in the market for 1.25" filters, mainly for planetary. Does anyone have experience with budget-priced products from ZWO, SVBONY, TS-Optics etc.? The next tier seems to be Omegon, Baader, etc. I also noted Celestron filters at £275 on Amazon. I'll be using a ZWO camera. Would it be better to buy the same brand?

Would there be any merit with in cooled 178? I think deep space targets might be limited due to the OTA?

Do you know something we don't? (I've just looked at the sky).

Hmm, SVBONY (looks like they are getting into cameras) LRGB set around £90, TS-Optics around £110. Anyone have experience with either?

Unless you order from China/Hong Kong/Taiwan...

Does the EFW have a button to operate by hand or is it computer control only?

They don't come much cheaper than this: https://www.ebay.co.uk/itm/SVBONY-SV133-1-25-Multiple-5-Position-Filters-Wheel-Metal-for-Telescope-adapter-/164116624525

Trying to be a bit more optimistic than the librarians above 😉 (OK, I ordered the O'Meara Mars book) I picked up a HiGear Utility Tent from my local outdoor store which I've pitched up in my garden next to my setup. It's not exactly a warm room, perhaps more of a shielded (temporary) room. Actually quite convenient with a small table and chair installed to sit with the laptop and a warming drink.

Thanks. I'm in a similar situation in that I'm planning a ROR next year and trying to preserve funds for what is likely to be a big hole. I worry that if I use a drawer I might end up dropping filters in the dark/mud!

The 178 is sounding good. What would be a good brand/product EFW and filter set to use with it? Apologies to the OP for bending the thread slightly.

Jumping on the bandwagon here. I'm looking for an imaging setup for lunar/planetary based around a C9.25. With the planets low at the moment I know it's not going to be great in terms of seeing and I'll probably be more focused on lunar. Thinking to get something like a ASI 120MC/MM to get started and later re-purpose it and then upgrade to a 178 or 290 (or similar). Or should I just go for one of the latter? I have a leaning towards mono but how would the colour/mono versions of 178/290 work with this setup? Barlow? In terms of the math (pixel size, focal length, etc.) are the aforementioned OK with the C9.25 (I'm usually in Bortle 5/6)? I also have a 60mm F5.9 which I intend to use on a portable setup so anything that works with that (not essential as I have a DSLR) would be good. Are ZWO the only game in town? One other thing, my old clunker of an astro lapop is USB 2.0. Is that going to be a major bottleneck or just slow things down?