Bamo

Hi Simon, I recently managed to have my own sustainable power supply cause I had the same problem with the 7Ah power tanks. They were a bit expensive and didn't provide sufficient power for the whole night. I'll tell you what I have bought. The setup is not so handsom "yet" but I tried it and it works perfectly.

1. 60 Ah semi-traction 12V battery. Can be in a range of €80. Your can set your own preference.

(Varta 60Ah accu Professional MF LFD60, 930060056, 12V)

2. Battery charger, cheap DUNLOP, slow charging but does a great job so far. between €15 and €20.

https://www.groupon.co.uk/deals/gg-groupon-goods-global-gmb-h-2340-158

3. Inverter DC/AC 500W. This is an amazing solution, will cost in a range of €50.

https://www.amazon.nl/dp/B07D4B1JXB/ref=pe_19967891_406998361_TE_SCE_dp_1

Bamo

Hi Peter, tried to blow it up a little by giving it a bit of magnification.

What do you think about this method anyway?.

Thanks, Bamo

Folks, was aiming last night at M57 and took about 20 shots examining my camera settings and setup.

My setup was set as an eyepiece projection method:

SW Evostar APO 80 mounted on EQ-5 Pro Synscan, EP Baader Hyperion 8mm, UHC ES filter Nikon D5300 body.

Any thoughts/criticism about the photos quality are really appreciated so I can make it better next time. I've uploaded the files on flickr.

https://www.flickr.com/gp/139477087@N05/bzUR93

Thanks in advance.

Hi Rob, welcome here. I live in NL as well.

a very useful forum here. Enjoy your stay

MvG

Bassem

this is looking so cool Stephen. Trying to build the same setup. got a battery of 60 Ah. 

Possible to share the wiring diagram with us?

Folks,

I started building my own field power supply as the commercial one I have from SW is not satisfying. I'm in a process of getting the material. What I have bought/ordered so far:

1. 60 Ah semi-traction 12V battery.

2. Car Boat Switch Panel with Voltmeter 12-24V with USB's and Cigarette Socket Charger.

3. Fuses different ratings.

4. Inverter DC/AC 500W.

The powered setup is just the goto mount + dew heaters.

is there anything else I should be looking at?. also can you guys help me with a sort of a wiring diagram if possible?.

Appreciate it, 

Bamo

Folks, not sure if this has been shared before. But, I was looking for a night vision software for Mac and I came across that one.

https://apps.apple.com/nl/app/night-vision/id1490614559?l=en&mt=12

For those who might be interested.

6 hours ago, refractordude said:

Sorry about your losing power, but did the hair dryer work to red your optics of dew? I just ordered a hair dryer that will be powered by my car battery.

Yes, the hair dryer will work fine. And as long as your powering from the car you shouldn't have much of a problem.

Good luck

Bamo

Just an update; last night I've used a camping 12v hairdryer with Sky-watcher power bank 7Ah. I guess I turned on the hair dryer for a couple or 3 mins in total. I can tell that it sucked all the energy in the power bank. and I was left the rest of the night helpless!.

I'll need to think of something else. You can always go cheap but would it work?. In my case it just didn't.

On 23/07/2018 at 23:05, NGC 1502 said:

12v hairdryer from a battery pack.

Any precautions whilst using the hairdryer during observation?.

I used Yoga mat when dew is not very aggressive with a maksutov. With the refractor, although it came with a built in dew shield, but it's not helping at all. Some advised hair dryers.