Forum: Digital SLR Cameras
March 2nd 08, 10:08 AM Posted to rec.photo.digital.slr-systems
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Replies: 33
Views: 1,858
Interesting comparison (300D/40D)
David J. Littleboy wrote:
Anyway, "DR" is a property of individual pixels, ...
... DR should be measured on an un-postprocessed signal
So is DR a property of a single pixel (presumably within...
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Forum: Digital SLR Cameras
February 13th 08, 09:19 PM Posted to rec.photo.digital.slr-systems
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Replies: 27
Views: 939
Photographic bight shiny objects?
Wolfgang Weisselberg wrote:
Mike Coon mjcoon@ wrote:
Wolfgang Weisselberg wrote:
Polarizers only work on non-metallic reflecting surfaces,
which silver isn't.
I happen to have a...
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Forum: Digital SLR Cameras
February 12th 08, 08:04 PM Posted to rec.photo.digital.slr-systems
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Replies: 27
Views: 939
Photographic bight shiny objects?
Wolfgang Weisselberg wrote:
Polarizers only work on non-metallic reflecting surfaces,
which silver isn't.
I happen to have a silver-plated trophy and a polariser to hand; it works
for me! Can...
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Forum: Other Photographic Equipment
January 23rd 08, 07:51 PM Posted to rec.photo.digital,uk.rec.photo.misc,rec.photo.equipment.misc
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Replies: 40
Views: 6,814
Digital camera with GPS capability
John Blessing wrote:
Gps only knows your heading (and only whilst moving), not your
bearing. So what you want would require a built-in compass and
inclinometer and presumably some sort of...
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Forum: Digital Photography
January 23rd 08, 07:51 PM Posted to rec.photo.digital,uk.rec.photo.misc,rec.photo.equipment.misc
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Replies: 43
Views: 2,088
Digital camera with GPS capability
John Blessing wrote:
Gps only knows your heading (and only whilst moving), not your
bearing. So what you want would require a built-in compass and
inclinometer and presumably some sort of...
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Forum: Digital SLR Cameras
January 11th 08, 11:56 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 982
USB remote shutter release
Robert Coe wrote:
Some Blackberries (and I presume other PDAs) can charge their
Bluetooth headsets via a USB cable. If the headset were USB instead
of Bluetooth, the PDA would still be the USB...
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Forum: Digital SLR Cameras
January 10th 08, 11:16 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 982
USB remote shutter release
Robert Coe wrote:
You assume wrong. Lots of devices get their power through a USB
cable. A card reader is a common example with which we're all
familiar.
But surely that is always from host...
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Forum: Digital SLR Cameras
January 9th 08, 11:08 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 982
USB remote shutter release
Jürgen Exner wrote:
What I am looking for is a small handheld device that uses the USB
port instead of the proprietary ports for shutter release and maybe
even general camera control.
Even...
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Forum: Digital SLR Cameras
December 22nd 07, 11:42 AM Posted to rec.photo.digital.slr-systems
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Replies: 5
Views: 556
Sound and other triggers
D.M. Procida wrote:
What kind of flash unit would be suggested? I have an old flash unit
from my Praktica, but it doesn't have an input for a trigger.
Daniele
But does it have a test button?...
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Forum: Digital SLR Cameras
December 20th 07, 10:08 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 851
OT - Digital Binoculars
RichA wrote:
On Dec 19, 2:47 pm, "Mike Coon" wrote:
RichA wrote:
They are all garbage. Toys for people who don't know any better.
If they already have a...
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Forum: Digital SLR Cameras
December 19th 07, 07:47 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 851
OT - Digital Binoculars
RichA wrote:
They are all garbage. Toys for people who don't know any better. If
they already have a decent digital camera, then get good pair of
binos.
Which is all very well, but by the...
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Forum: Digital SLR Cameras
December 18th 07, 11:05 PM Posted to rec.photo.digital.slr-systems
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Replies: 19
Views: 851
OT - Digital Binoculars
Ali wrote:
It seems the digital part comes from the ability to take photos. If
your friend is quite into photography, I'm not sure that they would
want to take a photo using binoculars. Also,...
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Forum: Digital SLR Cameras
December 6th 07, 07:10 PM Posted to rec.photo.digital.slr-systems
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Replies: 3
Views: 320
OT (kind of) Digital Frames
Yvon Travailler wrote:
which is
good because it uses quite a lot of power (as does any large LCD
screen).
????? Since when large LCD use lot of power ? My 19 inches LCD uses
only 35...
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Forum: Digital SLR Cameras
December 5th 07, 08:08 PM Posted to rec.photo.digital.slr-systems
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Replies: 3
Views: 320
OT (kind of) Digital Frames
GS wrote:
I picked up my first digital frame the other day for my mom to take
back home when she was up visiting the grandkids, just a cheapo 7"
unit with 480 X 234 resolution and displays at...
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Forum: Digital SLR Cameras
November 15th 07, 07:05 PM Posted to rec.photo.digital.slr-systems
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Replies: 23
Views: 1,258
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Forum: Digital SLR Cameras
November 12th 07, 10:42 PM Posted to rec.photo.digital.slr-systems
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Replies: 6
Views: 292
Lens advice
Tony Polson wrote:
For portraits of people older than 25, you may prefer the results you
get when using a soft focus filter such as a Zeiss Softar 1, which is
available in the B+W and Heliopan...
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Forum: Digital SLR Cameras
November 4th 07, 10:29 AM Posted to rec.photo.digital.slr-systems
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Replies: 7
Views: 582
Comet Holmes
C J Campbell wrote:
On 2007-11-03 17:59:08 -0700, RichA said:
... Even I might
have trouble with a bear. I might have an advantage in weight and
reach, but he has...
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Forum: Digital SLR Cameras
October 19th 07, 11:11 PM Posted to rec.photo.digital.slr-systems
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Replies: 11
Views: 819
flea inside lens.
jean wrote:
Beat me to it. That's the scientific approach: first find out
*exactly* what you're dealing with. Better hurry though, especially
if it's a fruit fly.
Exactly, they have a...
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Forum: Digital SLR Cameras
October 5th 07, 12:02 PM Posted to rec.photo.digital.slr-systems
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Replies: 12
Views: 1,015
The length of the focal length?
Richard J Kinch wrote:
What gives?
Two properties of a lens: effective focal length versus back focal
length.
Not the same thing.
Quite. My undergrad optics textbook (1st published...
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Forum: Digital Photography
September 30th 07, 10:21 AM Posted to rec.photo.digital,uk.rec.photo.misc
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Replies: 48
Views: 2,198
ceramic lens in digital cameras
Rob Morley wrote:
In article IuuLi.3113$Jk2.2199@trndny03, Marvin
says...
Irwin Peckinloomer wrote:
Glass is one of the most common ceramic materials. So all
...
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Forum: Digital SLR Cameras
August 30th 07, 07:26 PM Posted to rec.photo.digital.slr-systems
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Replies: 4
Views: 617
sailed to Spitsbergen - fresh images
T.Heslenfeld wrote:
Just returned from a spectacular sailing trip to Spitsbergen. Great
photo-conditions, with both snowfall, midnight's sun and high
pressure!
A small selection of the...
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Forum: Digital SLR Cameras
August 19th 07, 10:20 PM Posted to rec.photo.digital.slr-systems
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Replies: 7
Views: 810
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Forum: Digital SLR Cameras
August 15th 07, 10:50 PM Posted to rec.photo.digital.slr-systems
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Replies: 11
Views: 713
Flash stuck in hot shoe
Brian Sullivan wrote:
I just purchased a Vivitar DF400MZ flash for my D50 and though it
seems to work fine I can't seem to unscrew the tightening screw to
get the flash off the camera.
I am...
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Forum: Digital SLR Cameras
June 15th 07, 11:37 PM Posted to rec.photo.digital.slr-systems
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Replies: 13
Views: 5,107
Position of dust on sensor VS computer screen
Celcius wrote:
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2
bits still appear on the upper left corner of my computer screen.
Where is that dust located...
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Forum: Digital SLR Cameras
June 11th 07, 07:45 PM Posted to rec.photo.digital.slr-systems
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Replies: 91
Views: 3,533
airplane travel and my brand new dslr
C J Campbell wrote:
The UK will not allow any electronic equipment in your carry-on, not
even an iPod. So you if fly out of there you have to check your
laptop.
That certainly was not the case...
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