I had heard from someone about more Halloween photo ops, so off I went to see what I could photograph. It was challenging to take these after the sun had set. But I like to explore what is possible. It's a learning experience. What I have determined in such low light conditions, is to open up the aperture more and shorten the focal length (to allow in more light and have great depth of field together). That means getting a lot closer to subject matter. Not everyone is comfortable with that with strangers, but I do...and have gotten some great next-to-impossible images from an inexpensive Rebel DSLR camera.
Last Saturday I took some images at F3.5 and ISO12800 at night with 18mm to 22mm FL and they came our pretty good in a small town (some although did not look good as the lighting was almost non-existent). The only light I had was from street lamps and from lighting from the stores...some from car lights and displays too.
The images I show here were nice but could have been a little better with what I have learned lately. I hope this information helps for those that want to do the same.
Photo No. 1 - First let's start with some cars. Here's one with a Halloween skeleton. We will see no more skeletons after this one.

Photo No. 2 - These low rider autos could be seen like this.

Photo No. 3 - Again....

Photo No. 4 - And again....

Photo No. 5 - People seemed generally happy and often posed for photos next to these cars.

Photo No. 6 - Again....

Photo No. 7 - One more time....

Photo No. 8 - Looking at the same car....

Photo No. 9 - OK, now some costumes....

Photo No. 10 - Some were quite colorful.

Photo No. 11 - Again....

Photo No. 12 - These people were just so happy.

Photo No. 13 - That some of them even danced in the street.

Photo No. 14 - I saw an angel.

Photo No. 15 - And someone floating on a cloud....

Photo No. 16 - And finally it got so dark, that the people and cars were getting harder to see. It was time for me to go home. Note how I pushed the ISO levels so high for some of them to achieve the results I was trying to get.
