I'm a little confused about purple fringing. I have always
understood this to be the result of chromatic aberration from
inadequately corrected optics. From what I read here it seems
that some sensors display the fault more readily than others?
D
Dr E D F Williams
41660 TOIVAKKA
Finland
Ph:
And how about wax cylinders... 1950?
Dr E D F Williams
41660 TOIVAKKA
Finland
Ph: +358(0)400706616
On 31/12/2010 20:35, Bob Sullivan wrote:
How about dicta-belts. Belt dictaphones.
On Fri, Dec 31, 2010 at 11:31 AM, John Sessomsjsessoms...@nc.rr.com wrote:
From: John Mullan
Who remembers
All the qualities of a lens can be expressed in mathematical
terms. When these figures are favorable I am usually persuaded
that the lens is good. I rely entirely upon the contrast
transfer function measured in a good laboratory for that warm
confident feeling I get when I fit the Sigma Apo
Yeah,
But who remembers when WWII broke out? When the Queen Mary,
Queen Elizabeth, The Arc Royal and so many others I can't
remember for the moment, were anchored all at the same time in
the roadstead outside Cape Town harbour; and the U Boats stopped
local fishing trawlers from Hout Bay out
I've been posting to the list for a few days using HTML and
Cotty kindly set me right. I think I get the medal for age at
79. Doddery enough to have forgotten how to post.
D
Dr E D F Williams
41660 TOIVAKKA
Finland
Ph: +358(0)400706616
On 29/12/2010 15:40, eckinator wrote:
Can't beat that.
Oh boy! He has no face or eye protection; no gloves; the mains
cables are a real mess; there is a tangle of what looks like air
hoses and mains cables to his left. Two of the cables seem to be
joined and wrapped with tape. He is putting a hell of a lot of
pressure on the glass... if he is
Hi all,
I went through my camera cupboard this morning and came across a Sigma
Apo 400/5.6 in excellent condition. It's almost new. If anyone is
interested please let me know before I put it on eBay. It has a hard
leather case and I think I even have the original Sigma box (somewhere.)
I
The first.
Don
Christine Aguila wrote:
Hi Everyone:
Bit of an accident here: I sneezed the tulip shook--then I kind of
liked what I saw. I'd be interested in knowing which you prefer-- 1
or 2.
http://faculty.ccc.edu/caguila/tulip%20shake/index.html
Thanks, Christine
--
PDML
Dave,
You don't say anything about results. I assume it behaves like a 22mm
lens and does not give a 180 degree field of view?
Don
David J Brooks wrote:
I have the lens, and used it on my istD a number of times.
Decent lens for the money.
Dave
On Sun, Jan 11, 2009 at 2:11 AM, willdo-1
Hi Charles and Pasvorn,
I'm more impressed by the 16-50 than the Zenitar image! Thanks. This
shows all I needed to know. I think I'll get a Zanitar from Russia. It's
within my budget. The dealer who sells them has a decent reputation and
it should only take a day or two to get here. But he's
Hi Rick,
What fish-eye did you use for your spectacular Union Station and
Hauptbahnhof (Berlin) pictures?
Don
Rick Womer wrote:
Cleaning up a few pix left over from the fall...
This is another from the St. Louis series, taken in the park that surrounds the
Gateway Arch.
Hi all,
Has anyone used the Zenitar-K f2.8 16mm on a *ist D?
And by the way the set of AA Lithiums I mentioned before, as having a
very long life, are still going strong. I've taken about another 300
shots. I hardly use the flash; but on Christmas Eve used it at least 50
times.
Don
--
Last summer I put four Energizer AA lithium cells into the *ist D. I
used it all summer, carried it to Munich in August where I took 832
pictures (RAW). Why so few? Because it was raining all the time. I've
been using the camera on and off since then. Both with lenses (some
autofcous) and on
Hi all,
I hope you all have a Merry Christmas and a Happy New 2009.
There are some photomicrogaphs that might be of interest here:
http://picasaweb.google.com/edfwilliams/Work_001#
I used the *ist D body for these pictures.
And there are a few videos here:
What surprises me William, is that someone in Shenzhen, Guangdong
Province, should spend 32 minutes going methodically through my old and
very out of date pages yesterday. I have many Chinese visitors each week
and the reason for this escapes me. I do have Chinese contacts on the
mainland, in
I use a very wieldy Sigma 70~300 f4.0/5.6 Apo Macro Super. It's a 35mm
lens of course. The only problem I have is shake in the absence of
enough light. And of course it hunts, like any long auto-focus lens. I
simply can't afford the newer DSLR Pentax lenses but all the SLR lenses
I have
The portrait itself is faultless and the lighting is great. I'm not a
psychologist, but find the smile a little odd. Look at the eyes and then
the mouth. What else did you say to that tomato -- I mean lady? :-\
D
Derby Chang wrote:
Paul Stenquist wrote:
And I did. She's a local farmer
I was looking out of my bedroom window an hour ago and saw this guy
messing about. So I grabbed the camera and went out. I sneaked around a
corner and saw him perched on a branch. I simply could not hold the
camera steady enough, but the pictures do show what the little guy looks
likes.
Has anyone been using HeliconFilter? A few years ago when I bought a
licence for HeliconFocus I got both programs at the same time. I didn't
like the original Filter very much, because I was accustomed to the
Photoshop user interface. A few weeks ago I upgraded HeliconFocus and
got the newest
I've added three pictures to the gallery of stacks:
http://picasaweb.google.com/don.donwilliams/Stack/photo#5208684297290493794
http://picasaweb.google.com/don.donwilliams/Stack/photo#520868457681266
http://picasaweb.google.com/don.donwilliams/Stack/photo#5208684713902321538
The background
William Robb wrote:
- Original Message -
From: David Savage
Subject: Re: Werid artifacts
At 11:28 AM 5/06/2008, William Robb wrote:
Please see:
http://users.accesscomm.ca/wrobb/temp/weirdness.html
Shot with the k20 and 70mm LTD.
ISO 100, f/7.1 at 1/400th.
The sun
willdo-1 wrote:
William Robb wrote:
- Original Message -
From: David Savage
Subject: Re: Werid artifacts
At 11:28 AM 5/06/2008, William Robb wrote:
Please see:
http://users.accesscomm.ca/wrobb/temp/weirdness.html
Shot with the k20 and 70mm LTD.
ISO
David Savage wrote:
The phrase Safety Last springs to mind.
I like it. Fun shot.
Cheers,
Dave
2008/6/2 frank theriault [EMAIL PROTECTED]:
http://tinyurl.com/68ne98
http://bp3.blogger.com/_EaTEtfR4WJw/SEPjxuhUGYI/CME/0WZb5bQUnAY/s1600-h/may_30_08+004.jpg
This guy takes his
this at bay?
Best,
Jostein
2008/6/2 willdo-1 [EMAIL PROTECTED]:
Hi all,
I meant like this:
http://picasaweb.google.com/don.donwilliams/Stack
This is a very
rough and ready illustration of what can be done with a stack.
This could have been done with a ring light, or other decent
Where am I supposed to post, here, or down there where I have just
posted? --
AlunFoto wrote:
2008/6/4 willdo-1 [EMAIL PROTECTED]:
Hi Alun,
hehe, I should have said Hi Willdo... :-)
Here's another:
http://picasaweb.google.com/don.donwilliams/Stack/photo#5207921563482660690
Mike,
I'm fine. Summer is here again and I'll take a few hundred, or thousand,
pics! I'll be in Germany early July for a couple of weeks and expect to
use a few batteries then.
D
mike wilson wrote:
Hi Don,
Nice to see you back. How's life treating you?
From: willdo-1 [EMAIL PROTECTED
, Bob S.
On Mon, Jun 2, 2008 at 4:17 AM, Toine [EMAIL PROTECTED] wrote:
Hello Don,
Welcome back to the list!
Toine
On Mon, Jun 2, 2008 at 6:12 AM, willdo-1 [EMAIL PROTECTED] wrote:
This is a perfect specimen and setup for stacking with CombineZ or
HeliconFocus.
Don
Christine
Hi,
I found the LED ring light I was looking for. It was on a microscope
under a cover. So I made another stack and added three pictures to the
gallery:
http://picasaweb.google.com/don.donwilliams/Stack/photo#5207282184586207010
-- on
One was tweaked a little in CS and a crop was also made.
This is a perfect specimen and setup for stacking with CombineZ or
HeliconFocus.
Don
Christine Aguila wrote:
Very dramatic photo, Toine. I like it quite bit. Cheers, Christine
- Original Message -
From: Toine [EMAIL PROTECTED]
To: pdml@pdml.net
Sent: Sunday, June 01, 2008
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