From: Bruce Walker
On Thu, May 16, 2013 at 9:07 AM, John Sessoms <[email protected]> wrote:
From: Bruce Walker

On Wed, May 15, 2013 at 2:34 PM, John Sessoms <[email protected]>
wrote:

From: Eactivist

I did take some shots of the oil refinery last  night after it got
darker.

I was just disappointed with what I felt was a  lack of sharpness. Or
not
as sharp as I was hoping for.


Is this kind of image you're shooting for?

http://www.flickr.com/search/?q=night%20industrial


"We couldn't find anything matching your search

Would you like to try a search for lights, moon, cars, urban or car
instead?"


That's interesting. I get the search results when I test it?

I also get a disclaimer telling me my browser is too old & not supported
so I might not be able to view the images & that I should get a modern
browser like Firefox or Chrome. Yet I've never had any trouble just
viewing.

You can duplicate my query by going to flickr & typing "night
industrial" into the search box & select "search everyone's uploads".

Yes, that worked fine just now.

I swear I tried that yesterday too, with the same empty result. Maybe
I'd managed to select some additional search filters. Oh well. :)

Sure are some intriguing shots in there.

Back in film days there was a photography magazine I think was called Petersen's Photographic. It's not the one you can find nowadays. It was a monthly magazine that went out of business. I thought that happened in the early 90s, but it looks like it was later. I remember when I got the final issue there was a notice telling me the rest of my subscription would be filled with issues of Shutterbug.

On the very last page of every issue was a feature about "How I took that photo" that had a different photographer display a photo & write an article about how they created it. Most of them were studio setups with diagrams of where to put the lights & how many watt-seconds you had to use ... lots of "commercial" stuff like how to make the glass clear with black edges against a white background or how to make the glass clear with white edges against a black background. Stuff I had to do in my lighting classes later when I went to photography school.

One I still remember though was a night-time refinery shot like that ... done in camera on slide film. I can't quite remember the technique, but I know it involved locking the camera down on a tripod, waiting for hours before double exposing the film.

I'm pretty sure the first exposure was a basic "Sunny16" (One over ISO @ f/16) taken half an hour to three quarters of an hour after sunset to get that deep, deep blue sky. Several hours later you took a long exposure for the lights.

That's the part I can't remember, how to calculate how long that second exposure needs to be to get the lights right. The article gave a fairly simple formula like "the second exposure is 100x the first exposure".

I do know that 100x is not the right number, because I wasted a whole bunch of 4x5 Ektachrome on a couple of different occasions trying to figure it out.

I know I saved that issue, but I've never been able to find it again. It's got to be in this house somewhere.

It was a hell of a photo, because that issue must have been 30 years or more ago and impression it made stayed with me all this time.

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