Photography - Discussion, Photos, Equipment, Etc.

[Astronomer]

We had a massive thunder and lightning event last night, including tornado watches. The lightning and booming was continuous for almost 3 hours. I stayed up until 3:00 AM photographing it. I was exhausted today, but it was worth it. The first three shots are of the same lightning bolt. The TOGA lightning detector is sensitive enough and the camera's shutter speed fast enough that it captured the pulsing of the bolt.

 

 

 

 

 

 

[Thunder]

Nice Pictures   But i was at home last night you can't prove i was there. lol but anyways very nice shots

[bds1961]

 

 

A few pictures from my trip to Greece last year. this is off of our back deck. the storm lasted for hours

[Astronomer]

DSC_3081.jpgDSC_3085.jpg

 

A few pictures from my trip to Greece last year. this is off of our back deck. the storm lasted for hours

Very spectacular! Do you take 30-second exposures, or do you use a lightning trigger? I need to find an open expanse next storm and try and nab some cloud-to-ground bolts.

[bds1961]

I used a remote release running a 20 second exposure every minute.  the lightning was real consistent on how often it flashed.  Made it real easy to get a ton of great pictures

[LandShark]

Really nice shots.

[Astronomer]

Saturday date night: drive-in movie, then to the drive through for a burger and a float.

 

[hxtr]

Mars is red silly 

He used a filter Labob. hahhaa

[hxtr]

We had a massive thunder and lightning event last night, including tornado watches. The lightning and booming was continuous for almost 3 hours. I stayed up until 3:00 AM photographing it. I was exhausted today, but it was worth it. The first three shots are of the same lightning bolt. The TOGA lightning detector is sensitive enough and the camera's shutter speed fast enough that it captured the pulsing of the bolt.

 

 

 

 

 

 

Right there is proof lighting goes from the sky to the ground. I have seen it from a far from one big cloud and lightning was going strait up.

 

What the fuck is wrong with colleges to teach it the other way around? Who here went to college and learned current goes form negative to positive which is fucking BULLSHIT. The military gets it and teaches it correctly in A/C theory. Current goes form Positive to Negative. Colleges teach misinformation thats why everyone is getting supider.

 

Sorry just a huge pet pee of mine from 1992.

[eidolonFIRE]

Right there is proof lighting goes from the sky to the ground. I have seen it from a far from one big cloud and lightning was going strait up.

 

What the fuck is wrong with colleges to teach it the other way around? Who here went to college and learned current goes form negative to positive which is fucking BULLSHIT. The military gets it and teaches it correctly in A/C theory. Current goes form Positive to Negative. Colleges teach misinformation thats why everyone is getting supider.

 

Sorry just a huge pet pee of mine from 1992.

 

Hahaha

 

I have a bachelor's in computer engineering (which is almost identical to electrical engineering) and I will say this once. "Current" flows from positive to negative because "current" is just a made up idea and has been around forever; it's just a convention. However, electricity flows from negative to positive because electrons have a negative charge and the "negative" source has an excess of electrons that flow to positive source where there is a shortage of electrons.

[wildbill72]

Some nice shots here.especially the lightning,really cool.

 

Heres a couple more from me,im just getting to grips with my new camera.had a go at a long exposure on a nearby road,always wanted to shoot some light trails.

 

 

 

[eidolonFIRE]

Some nice shots here.especially the lightning,really cool.

 

Heres a couple more from me,im just getting to grips with my new camera.had a go at a long exposure on a nearby road,always wanted to shoot some light trails.

 

 

 

 

daawwmmnn, those are some nice shots!

 

Are those mirrors in that "window" ?

[Astronomer]

Some nice shots here.especially the lightning,really cool.

 

Heres a couple more from me,im just getting to grips with my new camera.had a go at a long exposure on a nearby road,always wanted to shoot some light trails.

 

 

 

Beautiful! Well done. Love the light trails. Love B&W too, and the macro.

[djMot]

Summer Rain in the Wisconsin Burbs.

 

[wildbill72]

@@eidolonFIRE    No those are broken windows taken from inside a derelict mill looking towards a mill thats been tranformed in to apartments.

 

same view only reversed focus

 

Edited June 25, 2015 by wildbill72

[hxtr]

Hahaha

 

I have a bachelor's in computer engineering (which is almost identical to electrical engineering) and I will say this once. "Current" flows from positive to negative because "current" is just a made up idea and has been around forever; it's just a convention. However, electricity flows from negative to positive because electrons have a negative charge and the "negative" source has an excess of electrons that flow to positive source where there is a shortage of electrons.

Their are two Theory's Conventional Flow vs Electron Flow Theory. The Military teaches Conventional Flow... Positive to Negative. Neither theory has been proven. 

 

But for the casual viewer.... you can very well see lighting come from the sky where the charge is held.. and it discharges to the ground or upper atmosphere.

 

So... Electron Flow theory is bullshit.

[Leadfinger]

Hahaha

 

I have a bachelor's in computer engineering (which is almost identical to electrical engineering) and I will say this once. "Current" flows from positive to negative because "current" is just a made up idea and has been around forever; it's just a convention. However, electricity flows from negative to positive because electrons have a negative charge and the "negative" source has an excess of electrons that flow to positive source where there is a shortage of electrons.

 

 

Their are two Theory's Conventional Flow vs Electron Flow Theory. The Military teaches Conventional Flow... Positive to Negative. Neither theory has been proven. 

 

But for the casual viewer.... you can very well see lighting come from the sky where the charge is held.. and it discharges to the ground or upper atmosphere.

 

So... Electron Flow theory is bullshit.

Pulling up a chair w/bag of popcorn, adult beverage anticipating a good debate . . .lol

 

 

Before I get too comfortable maybe start a new thread . . . . .

[Leadfinger]

@@eidolonFIRE    No those are broken windows taken from inside a derelict mill looking towards a mill thats been tranformed in to apartments.

 

same view only reversed focus

 

Well Done!!

 

only after looking closely did I see what you did here  .  .very creative

 

 

Seeing it in color helped  and gave it a different perspective . .

Edited June 25, 2015 by Leadfinger

[Olive]

Some nice shots here.especially the lightning,really cool.

 

Heres a couple more from me,im just getting to grips with my new camera.had a go at a long exposure on a nearby road,always wanted to shoot some light trails.

 

 

 

I'm terribly jealous 

[eidolonFIRE]

Pulling up a chair w/bag of popcorn, adult beverage anticipating a good debate . . .lol

 

 

Before I get too comfortable maybe start a new thread . . . . .

 

haha. Sorry to disappoint! I said I would only say it once. I've learned not to argue with HXTR, he's crazy. lol. Want to have some fun? Ask him about his miracle water. 

[little_old_man]

daawwmmnn, those are some nice shots!

 

Are those mirrors in that "window" ?

 

For those of us who were around before fully automatic and digital cameras, this was a common effect using depth of field focus. Back in the good old days when you had to know the proper shutter speed and f-stop to get the desired results, and when you would spend $20 to develop a roll of film that hopefully had at least one great shot on it.

 

Modern SLR cameras can still do it, but few people actually bother.

[little_old_man]

Their are two Theory's Conventional Flow vs Electron Flow Theory. The Military teaches Conventional Flow... Positive to Negative. Neither theory has been proven. 

 

But for the casual viewer.... you can very well see lighting come from the sky where the charge is held.. and it discharges to the ground or upper atmosphere.

 

So... Electron Flow theory is bullshit.

 

http://earthscience.stackexchange.com/questions/580/why-does-lightning-strike-from-the-ground-up

 

Lightning happens when the potential difference between the clouds and the grounds becomes too large. Once the voltage reaches a critical strength, the atmosphere can no longer act as an electrical insulator. First, a stepped leader is created at the base of the cloud which is a channel through which electrons in the cloud can travel to the ground. But while moving towards the ground, it searches for the most efficient(minimum electrical resistance) route possible. It does so by traveling 50-100 meters at a time then stopping for about 50 microseconds, then traveling another 50-100 meters. In this process it also branches out looking for the best route. As the stepped leader gets close to the ground, a positively charged traveling spark is initiated on some tall object (trees, towers etc) on the ground. The traveling spark moves upward and eventually connects with the stepped leader. Once the stepped leader and the traveling spark have connected, then electrons from the cloud can flow to the ground, and positive charges can flow from the ground to the cloud. This is known as return stroke. But this flow unlike the flow from up has a well defined shortest route now. This massive flow of electrical current occurring during the return stroke combined with the rate at which it occurs (measured in microseconds) rapidly superheats the completed leader channel, forming a highly electrically-conductive plasma channel. The core temperature of the plasma during the return stroke may exceed 50,000 K, which makes it shine so bright.

 

Does lightning strike from the sky down, or the ground up?

 

The answer is both. Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) towards the ground in a series of spurts. Objects on the ground generally have a positive charge. Since opposites attract, an upward streamer is sent out from the object about to be struck. When these two paths meet, a return stroke zips back up to the sky. It is the return stroke that produces the visible flash, but it all happens so fast - in about one-millionth of a second - so the human eye doesn't see the actual formation of the stroke.

 

Lightning discharges may occur between areas of cloud without contacting the ground. When it occurs between two separate clouds it is known as inter-cloud lightning, and when it occurs between areas of differing electric potential within a single cloud it is known as intra-cloud lightning. Intra-cloud lightning is the most frequently occurring type.

[eidolonFIRE]

For those of us who were around before fully automatic and digital cameras, this was a common effect using depth of field focus. Back in the good old days when you had to know the proper shutter speed and f-stop to get the desired results, and when you would spend $20 to develop a roll of film that hopefully had at least one great shot on it.

 

Modern SLR cameras can still do it, but few people actually bother.

I'm not an idiot lol... I know my way around a shutter. Most of my shots were done totally manually. I thought it looked like mirrors because of what looked like chips in the glass around the edges. Alas it was only as illusion...

[eidolonFIRE]

http://earthscience.stackexchange.com/questions/580/why-does-lightning-strike-from-the-ground-up

 

 

 

Lightning happens when the potential difference between the clouds and the grounds becomes too large. Once the voltage reaches a critical strength, the atmosphere can no longer act as an electrical insulator. First, a stepped leader is created at the base of the cloud which is a channel through which electrons in the cloud can travel to the ground. But while moving towards the ground, it searches for the most efficient(minimum electrical resistance) route possible. It does so by traveling 50-100 meters at a time then stopping for about 50 microseconds, then traveling another 50-100 meters. In this process it also branches out looking for the best route. As the stepped leader gets close to the ground, a positively charged traveling spark is initiated on some tall object (trees, towers etc) on the ground. The traveling spark moves upward and eventually connects with the stepped leader. Once the stepped leader and the traveling spark have connected, then electrons from the cloud can flow to the ground, and positive charges can flow from the ground to the cloud. This is known as return stroke. But this flow unlike the flow from up has a well defined shortest route now. This massive flow of electrical current occurring during the return stroke combined with the rate at which it occurs (measured in microseconds) rapidly superheats the completed leader channel, forming a highly electrically-conductive plasma channel. The core temperature of the plasma during the return stroke may exceed 50,000 K, which makes it shine so bright.

 

Does lightning strike from the sky down, or the ground up?

 

The answer is both. Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) towards the ground in a series of spurts. Objects on the ground generally have a positive charge. Since opposites attract, an upward streamer is sent out from the object about to be struck. When these two paths meet, a return stroke zips back up to the sky. It is the return stroke that produces the visible flash, but it all happens so fast - in about one-millionth of a second - so the human eye doesn't see the actual formation of the stroke.

 

Lightning discharges may occur between areas of cloud without contacting the ground. When it occurs between two separate clouds it is known as inter-cloud lightning, and when it occurs between areas of differing electric potential within a single cloud it is known as intra-cloud lightning. Intra-cloud lightning is the most frequently occurring type.

An interesting read..https://en.m.wikipedia.org/?title=Lightning

 

There were some things in there that I didn't know. Apparently lightning can happen with both polarities.

[hxtr]

That makes sense. Much like in Asolating Current.

 

Finally a good sound explanation on the how the current works. How many yeas have I thought about this subject. We has a kid in College join the Coast Guard and he had a hard time reversing the math.. even though the same math result.

 

Thanks LOM.

 

But if so