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By Ray Mondo
Hi, I’ve been looking at getting a Mak 127 or an 8” Dobsonian and I was think of leaving the scope in the conservatory.
The conservatory is south facing and gets quite hot in the summer months.
What is the maximum temperature scopes can be stored at without causing damage?
Thanks for any advice.
Decided to put cooling fans on my newtonians a 200pds and a 130pds ,used a 120mm on the 200 and a 80mm on the 130pds ,i used, Be Quite silent Wings2 fans they use rifle bearings and are so quite German made, i did the 200 first and was impressed with this make so ordered the same make for the 130 pds it comes with a lead with four wires but only needed neg ang pos so snipped other two out , made a disc from plastic and cut out around collimation screws on primary then used velcro to attach to OTA fitted a 2.1mm dc socket on to the disc then bought a usb lead to 2.1mm barrel though i may fit another 2.1mm socket on my power box and use 12v either way it works ,i used a dimmer on the 200pds but it doesnt need it and wouldn't use it again but its fitted now so will leave in place.
I have a simple question that I've not been able to answer myself about cooling..
Does it actually help if the ambient temperature is already very low?
My last two or three times out using my camera the air temperature has been below -1 deg C and as low as -4 from the cameras inbuilt sensor.
I have a wonderful Arduino that does everything for me. It focuses, exposes, guides, does GOTO and a myriad of other things. It also give me the weather, well really only temperature and humidity. But from that it works out the dew point.
Is there any point in waiting until the external temp drops below the dew point before turning on the dew heaters, or should I just leave them on all the time?
This is what the output looks like now:
"UTC: 2017/07/12 20:22:14 | 17 Deg C | 70 % humidity | Dew point = 11.5 Deg C "
It keeps monitoring the conditions every few minutes and it can turn the heater on for me if I like, but should I bother? Maybe it's better on all the time.
What do you think?
Hi everybody!! Just joined after lurking for a year.
I have done the filter removal as instructed by Gary Honis and was satisfied with the results. Only one thing I'm wanting to learn and that's how to do a cold finger mod on my canon 1000d.
I have found some links, but mostly any instructions I've found were outdated and removed from the web, so it's been difficult to find a mod to my liking with detailed step by step and supply list.
One of my main concerns is that I still want to use the side of my camera that has usb and the input for my intervalometer (currently unguided with no laptop).
I can do without live view as long as I can still connect the dslr to my phone on dslr controller for a bigger more comfortable live view.
Anyways I really need help in the right instructions to get this done. Any links, videos, or experienced instructions would be a big help and I would be very thankful for.
I'd also like to add that I would like to go light weight on the mod, so i don't have much trouble balancing the es 80mm triplet on an Orion sirius.
Trying my best at a budget to defeat the Texas summer.