Long exposure bulb settings
Jul 30, 2013 07:57:29 #
jimmya wrote:
Could be but I've gotten a heat worning after about 11 minutes and the camera shut down at about 12:30... just a thought.
I haven't done exposures running into minutes, nor have I done long video. I'm wondering about the relationship between shooting a long exposure on Bulb and shooting a movie of several minutes. I know heating of the sensor is an issue. Maybe that should be a separate post.
Jul 30, 2013 08:06:52 #
lighthouse
Loc: No Fixed Abode
Oh far out SharpShooter, its not that hard, I do it all the time.
All ya gotta do is double and halve and count how many times ya did it.
Presto I got 10 fingers so its a cinch to get it right.
But it works better if ya chuck an extra one in, so its count to 10 and then add one.
All ya gotta do is double and halve and count how many times ya did it.
Presto I got 10 fingers so its a cinch to get it right.
But it works better if ya chuck an extra one in, so its count to 10 and then add one.
SharpShooter wrote:
Yes, but Jim, to use your method, does one need to be a MENSA card carrying member? I've misplaced my card, and if I were any smarter, I'd remember where I left it!!
Thanks for the app info. SS
Thanks for the app info. SS
Jul 30, 2013 08:14:25 #
Photographer Jim wrote:
You can, of course, do some math in your head and ... (show quote)
That sounds like a good reason to make up a little chart, rather than doing that counting while on location.
Jul 30, 2013 08:18:32 #
lighthouse
Loc: No Fixed Abode
The Lee Big Stopper comes with a chart.
jerryc41 wrote:
That sounds like a good reason to make up a little chart, rather than doing that counting while on location.
Jul 30, 2013 08:27:09 #
lighthouse wrote:
The Lee Big Stopper comes with a chart.
I don't think my Hoya came with a chart. How does this look? I just made it. Any errors?
Jul 30, 2013 08:57:25 #
Jul 30, 2013 09:07:31 #
lighthouse wrote:
One stop out.
1/30th sec + 10 stops = 30 secs
1/30th sec + 10 stops = 30 secs
I corrected from that point down. How does it look?
Jul 30, 2013 09:10:15 #
Jul 30, 2013 09:16:35 #
lighthouse wrote:
Nope but I see the problem. You missed out 1/250th sec.
Trying again! This is why I wouldn't want to do this in my head when I'm out shooting. :D
Jul 30, 2013 09:27:16 #
lighthouse
Loc: No Fixed Abode
Now for that title?
Maybe "Shutter Change for 10 Stop" and remove the heading of the first column.
Maybe "Shutter Change for 10 Stop" and remove the heading of the first column.
Jul 30, 2013 09:30:49 #
jerryc41 wrote:
I don't think my Hoya came with a chart. How does this look? I just made it. Any errors?
Changes have been made and posted. Look farther down the posts.
Jul 30, 2013 09:31:06 #
lighthouse wrote:
Now for that title?
Maybe "Shutter Change for 10 Stop" and remove the heading of the first column.
Maybe "Shutter Change for 10 Stop" and remove the heading of the first column.
Jul 30, 2013 09:37:14 #
lighthouse
Loc: No Fixed Abode
Looks good Jerry - for a 10 stop.
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Jul 30, 2013 11:36:28 #
lighthouse wrote:
Looks good Jerry - for a 10 stop.
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Oh, you're sharp! That's correct, but what's a stop or two when you're experimenting?
Jul 30, 2013 12:17:40 #
lighthouse wrote:
Looks good Jerry - for a 10 stop.
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Ummm just working on memory here but I just had a thought.
Don't they rate the Hoya as a 9 stop?
But I did say that it doesn't hurt to give an extra stop didn't I, so maybe its a perfect chart for a 9 stop!!
Hoya does make the 400ND, their version of "black glass". It rates at 8 2/3 stops. It is another reason I use the long exposure calculator on my iPhone to figure exposures. (The app also helps a lot when I stack that 400ND with other ND filters).
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