General Light Pollution Filter for Bortle 3? [Deep Sky] Acquisition techniques · Piers Palmer · ... · 27 · 1076 · 7

DalePenkala 15.85
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Piers Palmer:
Yeah - I think my belligerence in not doing them is proving costly! I wonder if it's worth investing in a flat-panel to make my life easier.

I agree with using flats 100%. Yes even in bortle 3 skies. I think once you get them incorporated into your workflow you will step up your images.
I do use a light panel for my flats so I can attest to them. What’s nice is you can do them at any time you want. If you don’t want to do a light panel as @andrea tasselli and others have mentioned shooting at a well illuminated sky works well too using a white t-shirt.

As for the filters, I’m in bortle 4 skies and in my southeast - southwest, I do get some light pollution from the city. When I’m down in that area of the sky I definitely use either my L-Pro or NBZ depending on the object. (Congrats on the NBZ BTW! Great filter!) in my NE-NW I’d almost say I’m close to bortle 3. I shoot with my UV/IR Cut as much as possible as long as the moon isn’t up to high or to fully illuminated.

Dale
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PiersPalmer 2.15
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You're quite right...I've just ordered one!
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SchwarzBlack 0.90
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Grab a dslr and a tripod and go out in your yard at night. Take a picture with a 24mm lens or wider of the North, East, South, West, expose the histogram almost to the center.   This will give you a good idea of where the light domes are interrupting your optical path.  

Next you can see if there are some long terms solutions.  I would suggest planting either Emerald Thuja or Giant arborvitae as a hedge row to block light sources from illuminating your yard. These grow very fast, about 2-3 feet a year, and they are evergreen so they will obstruct light year round.  Another tree worth considering is Canadian hemlock if your soil and zone conditions support this tree. If deer are bad in your area consider Osmanthus Armatus or Osmanthus San Jose which grow very rapidly to about 20' and are also evergreen - the san jose variety smell's like heaven. 

Additionally, ask to see if the LED street light can be hooked up to a motion sensor.  If not maybe they can put a hood on it so that it only downward illuminates. If you complain to the local power company that it is disrupting sleep in your house then they may consider coming out to install a hood. If your neighbors are using HPS or Sodium bulbs, maybe offer to buy them an energy saving LED flood light that operates on motion activation?  I bought a pack of E26 motion activated LED bulbs and only needed 2. I offered the rest of them to my neighbor who would previously leave the lights on all night in the back yard. This made a big difference in the amount of light intruding onto my property at night.
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