Do Canon's competitors have something like CHDK? Time Lapse, etc?

On 9/8/2010 11:49 PM, DanP wrote:
On Sep 8, 11:32 pm, Superzooms Still wrote:
On Wed, 8 Sep 2010 15:18:48 -0700 (PDT),
wrote:

On Sep 8, 9:14 pm, wrote:

At ISO200, full sunlight is EV17. f/4, 1/40000 would be slightly above
EV19. Still four times more light than high sun.

--
Bertrand

1/40,000 sec with CHDK is possible only at f/8 only. Useless, use
strobes instead.

DanP

Useless to someone with severe thinking limitations only.

Do you have a heavy degraded 1/40,000 sec photo with no EXIF data,
half a megapixel in size, that you can post and delete before I can
see it?

I don't really understand your problem. You don't have a use for high
shutter speeds, fine, but to argue for many, many posts that since you
don't have a use for them they are useless to anybody is starting to
look like arguing for the sake of argument.

On 9/9/2010 7:57 AM, DanP wrote:
On Sep 9, 10:57 am, "J. wrote:
On 9/8/2010 11:32 PM, DanP wrote:



On Sep 9, 12:08 am, "J. wrote:
On 9/8/2010 6:18 PM, DanP wrote:

On Sep 8, 9:14 pm, wrote:

At ISO200, full sunlight is EV17. f/4, 1/40000 would be slightly above
EV19. Still four times more light than high sun.

--
Bertrand

1/40,000 sec with CHDK is possible only at f/8 only. Useless, use
strobes instead.

So how many strobes does it take to light up an artillery range?

Don't know. How can you shoot that with a camera?

Usually by pointing the camera at it and pressing the shutter release.

Is gonna come out pitch black mate.

So where are the lights in the videos I linked earlier?

On Wed, 8 Sep 2010 19:26:21 +0200, Wolfgang Weisselberg
wrote:

Ofnuts wrote:
On 08/09/2010 06:04, Wolfgang Weisselberg wrote:
wrote:

and how
do you light your subject?

Powerful flashbulbs.
Electronic flashes.

How many CHDK-capable cameras have a flash sync connector? Not speaking
of sync'ing the actual flash with such a short shutter...

You don't.

You do.

You sync the camera to the flash. After all, a
flash may well be 1/1.000s long --- long enough for a
1/40.000s exposure.

-Wolfgang

And some of the external flash units used with CHDK cameras have flash
durations as short as 1/224,000th of a second, and they are still able to
perfectly sync with the 1/40,000th second shutter speeds.

http://chdk.wikia.com/wiki/CameraFeatures


Get your pretend-photographer DSLR-TROLLs' heads out of your asses. (Is
that ever possible for a troll to do that? I think not.)

On Wed, 8 Sep 2010 19:43:01 +0200, Wolfgang Weisselberg
wrote:

Robert Sneddon wrote:

Using a CHDK-equipped Canon at a very high shutter speed, a flash is
not required and simple continuous high-intensity floodlighting of the
scene will suffice.

With ISO 80 and f/5.6, you need LV 21.
In other words, you need about 32 times more light than the sun
produces[1]. That's gonna be quite hot very soon.

Doc's pictures referenced above required very short
pulses of intense light from high-intensity strobes to create the short
"exposures" in a blacked-out room, usually with the camera shutter
locked open to avoid synchronisation problems.

True, but guesstimate the exposure time. Bullet ~= speed of
sound (300m/s), doesn't move a mm in the exposure. Exposure
is faster than 1/300.000s, probably 10-100 times faster.

Do you think 1/40.000s is impressive?

From
http://chdk.wikia.com/wiki/Samples:_High-Speed_Shutter_%26_Flash-Sync

When discussing the 1/60,000th second flash duration that's available on
all Powershot cameras' built-in flash unit.

"I have since been investigating other uses of high-speed flash on the
internet, and ran across this little discussion
http://forums.dpreview.com/forums/readflat.asp?forum=1025&message=25862847&changemod e=1
, when someone was enquiring about photographing shot-gun spread-patterns
from the side, and how fast of a flash would be needed. The reply is rather
appropriate for this photo. They compared the edge speed of a Dremel-drill
cut-off wheel with ballistics speeds.

I guess this means that if you wanted to, and had a way to sync your camera
to a rifle shot, you could get one of those spectacular images of a bullet
ripping through a playing-card, edge-wise.

Also worth noting in my net searches, most 'high speed' flash units on the
market rarely go above 1/50,000th of a second, more commonly about
1/20,000th to 1/30,000th of a second, at exorbitant cost."


If only you fool pretend-photographer DSLR-TROLLs would ever educate
yourselves. We wouldn't have to spoon-feed knowledge to you ever day.

On 08/09/2010 19:26, Wolfgang Weisselberg wrote:
wrote:
On 08/09/2010 06:04, Wolfgang Weisselberg wrote:
wrote:

and how
do you light your subject?

Powerful flashbulbs.
Electronic flashes.

How many CHDK-capable cameras have a flash sync connector? Not speaking
of sync'ing the actual flash with such a short shutter...

You don't. You sync the camera to the flash. After all, a
flash may well be 1/1.000s long --- long enough for a
1/40.000s exposure.


You mean, the camera senses the flash and triggers?

--
Bertrand

in alt.fan.rush-limbaugh, about: Do Canon's competitors have
something like CHDK? Time Lapse, etc?;
On Wed, 08 Sep 2010 12:20:35 -0700, SMS wrote:


On 9/8/2010 12:12 PM, Crash! wrote:

SMS wrote:


On 9/7/2010 1:00 PM, Irwell wrote:

I'm really puzzled
as to why our favorite troll is so upset that I contributed to the
documentation and added some camera specific information. If he's so
gung-ho about CHDK, you'd think he'd be thrilled that people are helping
out!

You mean the two sock puppets using X-Newsreader: Forte Agent
4.1/32.1088 ?? ...that constantly calls everybody trolls?

Hey, don't complain about that. There's information in those headers
that makes filtering him very easy despite his constant name changes.

It's what happens when minor delusions of grandeur meet
a highly bifurcated world view, and the insecurities
caused by low esteem, both self, and his cause.

It looks to be extreme jealousy of people that actually have knowledge
of the subject, but perhaps it's also jealousy of those that can afford
a D-SLR.

AHA! I kinda suspected; "When John talks about Paul,
he says more about John than Paul."

Well, you certainly know him better than I do. It looked
like general personality traits to me. So his behavior
is issue-specific?

I like trolls now and then, cuz they can be made to
say about anything, they makes my point so much better
than I could alone.

We see the same thing with the other main troll on
rec.photo.digital.

Egads! Lucky me, I only noticed the two-sock-
puppet guy using 4.1/32.1088, Zoomie & Troll Buster,
some such. So there's a second troll - I'll beware.

in alt.fan.rush-limbaugh, about: Do Canon's competitors have
something like CHDK? Time Lapse, etc?;
On Wed, 08 Sep 2010 14:46:32 -0500, Superzooms Still Win wrote:

On Wed, 08 Sep 2010 10:54:20 -0700, Crash! wrote:

To freeze a hummingbird's wings
in a closeup, were's talking around 1/10,000 or faster.
So if it could be lit, and it could, CHDK could make
a cool pic, but isn't strobe easier, faster,....and
off the shelf?

A photo of a hummingbird shot at 1/10,000th of a second in sunlight using
available-light alone was already posted many times.

The author of that photo gave me permission to repost it whenever I wanted.

Did you miss all the times it was posted?

Awww... too bad.

Huh!???? Wow.


BTW: I wrote 99% of all the documentation for CHDK. They merely used my
documentation and then compiled it into the PDF that's available now. Well,
the included only part of it. They left off all the pages I wrote for the
µBASIC tutorial, how to design grids (nearly all of them on the Wiki done
by myself), and left out quite a bit of information from the 3 original
user guides (for various builds) that is still applicable to the latest
version. You really need to dig into all the older documentation pages to
get the full scope of what CHDK can do. (I don't have to, I already know
all that I wrote about it.) As well as wrote many of the most popular
scripts for it, many of them used as the foundation for better scripts that
came after (like Fudgey's "Improved" Motion Detection script that I
designed the foundation for).

So, you see ... you ****ed off the wrong person if you wanted to know any
real information about CHDK. But you go ahead, get advice from the SMS
troll that knows absolutely nothing about how to use it. This should be
quite entertaining to watch!

LOL!

Do you know what a lunatic you and your sock puppet
sound like?

Do you prefer being referred to in the
singular, or the plural?

Even if you were "The Grand Poo-ba of Mighty CHDK" that
you claim, why would I use any info from somebody
with such severe, untreated personality disorders?

This should be quite entertaining to watch!

"entertaining?" wow.
I have no doubt you spend hours chortling at the Grand
Battles and Victories you imagine here.
I'm glad we can all help to provide you one place where
you feel in control of your confusing, unknowable frightening
world. You may find similar comfyness and security listening
to the Rush Limaugh Show! As he desribes himself, he's
just a harmless little fuzzball. His nice safe, easy to
understand world is even more simple, and the fordimable enemy
is out to desroy America! And they are everywhere!
Limbaugh shreds them like rag dolls! And he'll teach you how to
do the same. It's very, very comforting!

in alt.fan.rush-limbaugh, about: Do Canon's competitors have
something like CHDK? Time Lapse, etc?;
On Wed, 8 Sep 2010 17:15:35 +0100, Robert Sneddon wrote:


In message , Ofnuts

A well-lit office or shop runs to about 500-700 lux whereas regular
daylight is 10,000 lux and bright direct sunlight is about 100,000 lux.
A rough calculation suggests that a 1/40,000 second exposure would work
for a sunlit scene for F/4 and ISO 200, possibly with a reflector to add
side-illumination to the target to reduce shadowing. No frying required.

I don't think so. People with $10 Brownie cameras shoot
sunlit scenes at F/4 and ISO 200 all the time.
They have no 1/40,000 second shutter.

A common exposure in sun at ISO 200 is F/8 at 1,000th.
....or f/16 at 250.
I shot a Nikon F 30 years w/o a meter.
Batteries are for sissies!

So assume f/8 for round numbers' sake.
How bright must your light be at 1/40,000?

Do Canon's competitors have something like CHDK? Time Lapse,
etc?;
On Wed, 8 Sep 2010 10:30:09 -0700 (PDT), DanP wrote:


On Sep 8, 5:15*pm, Robert Sneddon wrote:

*A well-lit office or shop runs to about 500-700 lux whereas regular
daylight is 10,000 lux and bright direct sunlight is about 100,000 lux.
A rough calculation suggests that a 1/40,000 second exposure would work
for a sunlit scene for F/4 and ISO 200, possibly with a reflector to add
side-illumination to the target to reduce shadowing. No frying required.

I don't think so. Not even close.


For 1/40,000 sec exposure the aperture will be set at f/8 regardless
of what the display says.

Here's some common sunny day exposures,
most all manual camera users know this rule:

http://herron.50megs.com/sunny16.htm

Do Canon's competitors have something like CHDK? Time Lapse,
etc?;
On Wed, 08 Sep 2010 16:05:23 -0400, J. Clarke wrote:


On 9/8/2010 12:15 PM, Robert Sneddon wrote:

A well-lit office or shop runs to about 500-700 lux whereas regular
daylight is 10,000 lux and bright direct sunlight is about 100,000 lux.
A rough calculation suggests that a 1/40,000 second exposure would work
for a sunlit scene for F/4 and ISO 200, possibly with a reflector to add
side-illumination to the target to reduce shadowing. No frying required.

Nope.

This video http://www.youtube.com/watch?v=Z7FMki6dlKg looks to be in
the 50-100,000 frames/sec range and seems to have been shot with natural
light. Here's another
http://www.youtube.com/watch?v=Num9TR7wlrw&feature=related.


Here's the proper exposu

http://herron.50megs.com/sunny16.htm