Nikon Capture.

[Michael Black]

On Thu, 14 Nov 2013, William Sommerwerck wrote:

"Michael Black" wrote in message
news:alpine.LNX.2.02.1311141503030.22053@darkstar.example.org...

I just saw something suggesting taking a webcam and
reversing the lens, so it works better for close up work.

How do you intend to reverse a lens that presumably cannot be removed from
the camera?

I wsa just glancing at a webpage, and it said many of the lenses screw in
place, which certainly was the case of one I took apart.

The camera is already designed for "close ups", so I don't see how that would
help.

I wondered about that too. But "close up" is relative.

Michael

 

[William Sommerwerck]

"Gareth Magennis" wrote in message news:9Ldhu.45963$5S.28574@fx29.am4...
"William Sommerwerck" wrote in message news:l63of6$kdq$1@dont-email.me...

William, you really haven't researched this at all.

Oh, but I did. I asked the direct question as to how one was supposed to
reverse a presumably non-removable lens. All you need have said was that
some cameras have the lenses mounted with screws that can be removed.
The discussion would have ended amicably at that point.

I assume this is what you are talking about.
http://diybio.org/2009/12/13/webcam-microscope-hacks-at-bosslab/
I do not see what connection this has with the subject of the original post.

No. William, you researched that link after I had made my post, and now
you are trying to suggest that that was part of your pre-posting research.

No, Gareth, I stated that my research consisted of asking you a specific
question. (See above.) My search for a Web reference did, indeed, come after
the posting.


> William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another lens --
reversed -- in front of the Webcam's lens -- is the same as reversing the
Webcam's lens.

 

[William Sommerwerck]

"Michael Black" wrote in message
news:alpine.LNX.2.02.1311142154490.22719@darkstar.example.org...
On Thu, 14 Nov 2013, William Sommerwerck wrote:

"Michael Black" wrote in message
news:alpine.LNX.2.02.1311141503030.22053@darkstar.example.org...

I just saw something suggesting taking a webcam and
reversing the lens, so it works better for close-up work.

How do you intend to reverse a lens that presumably cannot
be removed from the camera?

I was just glancing at a web page, and it said many of the lenses
screw in place, which certainly was the case of one I took apart.

The camera is already designed for "close ups", so I don't see
how that would help.

I wondered about that, too. But "close up" is relative.

You see, Gareth? He understand what I was I was asking, and gave a clear
answer. Thanks, Michael.

 

[Mike]

In article <m08hu.119064$5L5.79473@fx17.am4>,
Ian Field <gangprobing.alien@ntlworld.com> wrote:

What I'm after allows shutter control with a mouse click - any other
controls would be a bonus.

Linux will see the camera as a USB device and let you grab the
existing files on there, to force the camera to take pictures in "tethered"
mode check out "gphoto2", if it supports your camera, then it could
help :-

List files with gphoto2 --camera="Oregon Scientific DShot III" -L

Get all files with gphoto2 --camera="Oregon Scientific DShot III" -P

Get numbered files with gphoto2 --camera="Oregon Scientific DShot III" -p 5-7

Delete all files with gphoto2 --camera="Oregon Scientific DShot III" -D

Delete numbered files with gphoto2 --camera="Oregon Scientific DShot III" -d 1-9

*** Force capture of picture from PC, stored on camera with
gphoto2 --camera="Oregon Scientific DShot III" --capture-image ****

Capture filenames can be set with
--filename=`date +"%Y%m%d_%H%M%S".jpg`

This works with some cameras, not others, depends on support from the
manufacturer to provide such a useful facility, and then on the driver
writer!

So a combination of force capture, get file, delete file in sequence would
fetch the pics straight over to the PC.
--
--------------------------------------+------------------------------------
Mike Brown: mjb[-at-]signal11.org.uk | http://www.signal11.org.uk

--- news://freenews.netfront.net/ - complaints: news@netfront.net ---

 

[Ian Field]

"Mike" <mjb@signal11.invalid> wrote in message
news:l6ki43$ft7$1@posie.signal11.org.uk...

In article <m08hu.119064$5L5.79473@fx17.am4>,
Ian Field <gangprobing.alien@ntlworld.com> wrote:

What I'm after allows shutter control with a mouse click - any other
controls would be a bonus.

Linux will see the camera as a USB device and let you grab the
existing files on there, to force the camera to take pictures in
"tethered"
mode check out "gphoto2", if it supports your camera, then it could
help :-

Linux is for when I get a bit more pissed off with M$ - I found some digital
camera capture apps with an ftp search, but I also found a load of other
interesting stuff, so it could take a couple of weeks to do the download
queue.

 

[Ian Field]

"Mike" <mjb@signal11.invalid> wrote in message
news:l6ki43$ft7$1@posie.signal11.org.uk...

In article <m08hu.119064$5L5.79473@fx17.am4>,
Ian Field <gangprobing.alien@ntlworld.com> wrote:

What I'm after allows shutter control with a mouse click - any other
controls would be a bonus.

Linux will see the camera as a USB device and let you grab the
existing files on there, to force the camera to take pictures in
"tethered"
mode check out "gphoto2", if it supports your camera, then it could
help :-

Linux is for when I get a bit more pissed off with M$ - I found some digital
camera capture apps with an ftp search, but I also found a load of other
interesting stuff, so it could take a couple of weeks to do the download
queue.

 

[Ian Field]

"Mike" <mjb@signal11.invalid> wrote in message
news:l6ki43$ft7$1@posie.signal11.org.uk...

In article <m08hu.119064$5L5.79473@fx17.am4>,
Ian Field <gangprobing.alien@ntlworld.com> wrote:

What I'm after allows shutter control with a mouse click - any other
controls would be a bonus.

Linux will see the camera as a USB device and let you grab the
existing files on there, to force the camera to take pictures in
"tethered"
mode check out "gphoto2", if it supports your camera, then it could
help :-

Linux is for when I get a bit more pissed off with M$ - I found some digital
camera capture apps with an ftp search, but I also found a load of other
interesting stuff, so it could take a couple of weeks to do the download
queue.

 

[Gareth Magennis]

> William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another lens --
reversed -- in front of the Webcam's lens -- is the same as reversing the
Webcam's lens.




William, what the fuck are you playing at?

I NEVER said or implied any of the above, you just made that up.



Gareth.

 

[Gareth Magennis]

> William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another lens --
reversed -- in front of the Webcam's lens -- is the same as reversing the
Webcam's lens.




William, what the fuck are you playing at?

I NEVER said or implied any of the above, you just made that up.



Gareth.

 

[Gareth Magennis]

> William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another lens --
reversed -- in front of the Webcam's lens -- is the same as reversing the
Webcam's lens.




William, what the fuck are you playing at?

I NEVER said or implied any of the above, you just made that up.



Gareth.

 

[Gareth Magennis]

> William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another lens --
reversed -- in front of the Webcam's lens -- is the same as reversing the
Webcam's lens.




William, what the fuck are you playing at?

I NEVER said or implied any of the above, you just made that up.



Gareth.

 

[William Sommerwerck]

"Gareth Magennis" wrote in message news:nfvku.120161$k_7.41435@fx15.am4...

William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another
lens -- reversed -- in front of the Webcam's lens -- is the same
as reversing the Webcam's lens.

William, what the fuck are you playing at?
I NEVER said or implied any of the above, you just made that up.

Look in your Sent folder, and see what you actually wrote. I read it several
times, to make I was reading it correctly.

 

[Gareth Magennis]

"William Sommerwerck" wrote in message news:l6u2de$fdu$1@dont-email.me...

"Gareth Magennis" wrote in message news:nfvku.120161$k_7.41435@fx15.am4...

William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another
lens -- reversed -- in front of the Webcam's lens -- is the same
as reversing the Webcam's lens.

William, what the fuck are you playing at?
I NEVER said or implied any of the above, you just made that up.

Look in your Sent folder, and see what you actually wrote. I read it several
times, to make I was reading it correctly.




First of all apologies for the multiple posts, it was not intentional.
Windows Live Mail is seriously broken and a serious pain to use.


Anyway, this is what I wrote:

By the way, if you have an old 35mm camera to hand, try taking a 50mm lens
and reversing it.

You can get the same effect by simply holding the lens reversed in front of
any digital camera lens.


You seem to have interpreted this as:
putting another lens -- reversed -- in front of the Webcam's lens -- is the same as reversing the Webcam's lens.




I rest my case.



Gareth.

 

[William Sommerwerck]

"Gareth Magennis" <gareth.magennis@ntlworld.com> wrote in message
news:MDPku.27$WH3.12@fx08.am4...


"William Sommerwerck" wrote in message news:l6u2de$fdu$1@dont-email.me...

"Gareth Magennis" wrote in message news:nfvku.120161$k_7.41435@fx15.am4...

William, I believe you are a liar and a fraud.

You have not yet retracted your statement that putting another
lens -- reversed -- in front of the Webcam's lens -- is the same
as reversing the Webcam's lens.

William, what the fuck are you playing at?
I NEVER said or implied any of the above, you just made that up.

Look in your Sent folder, and see what you actually wrote. I read it several
times, to make I was reading it correctly.


Anyway, this is what I wrote:

By the way, if you have an old 35mm camera to hand, try taking a 50mm lens
and reversing it.

You can get the same effect by simply holding the lens reversed
in front of any digital camera lens.

You seem to have interpreted this as:
putting another lens -- reversed -- in front of the Webcam's lens -- is the
same as reversing the Webcam's lens.


That is //exactly// my interpretation -- because that's //exactly// what you
wrote!

Take off your mental blinders AND READ IT.

 

[Gareth Magennis]

Anyway, this is what I wrote:

By the way, if you have an old 35mm camera to hand, try taking a 50mm lens
and reversing it.

You can get the same effect by simply holding the lens reversed
in front of any digital camera lens.

You seem to have interpreted this as:
putting another lens -- reversed -- in front of the Webcam's lens -- is the
same as reversing the Webcam's lens.


That is //exactly// my interpretation -- because that's //exactly// what you
wrote!

Take off your mental blinders AND READ IT.




I suggest you read it all again then.

I have never suggested that placing a lens in front of a webcam lens is the
same as reversing the webcam's lens.
That is another thing you have made up.

I have also never mentioned reversing the Webcam's lens, that is all your
doing.
That is yet another thing you seem to have made up.



I'd give up now if I were you.


Gareth.

 

[William Sommerwerck]

"Gareth Magennis" wrote in message news:kFRku.14$uP2.11@fx20.am4...

I have never suggested that placing a lens in front of a webcam
lens is the same as reversing the webcam's lens.

You can get the same effect by simply holding the lens reversed
in front of any digital camera lens.

Hello? Knock, knock, knock.

 

[Gareth Magennis]

"William Sommerwerck" wrote in message news:l70p2j$vg9$1@dont-email.me...

"Gareth Magennis" wrote in message news:kFRku.14$uP2.11@fx20.am4...

I have never suggested that placing a lens in front of a webcam
lens is the same as reversing the webcam's lens.

You can get the same effect by simply holding the lens reversed
in front of any digital camera lens.

Hello? Knock, knock, knock.





Err, what part of that has anything to do with reversing a webcam's lens?


You are not making a lot of sense, other than displaying your obvious
conclusion jumping.


Gareth.

 

[William Sommerwerck]

"Gareth Magennis" wrote in message news:jVRku.36$KN6.20@fx16.am4...
"William Sommerwerck" wrote in message news:l70p2j$vg9$1@dont-email.me...
"Gareth Magennis" wrote in message news:kFRku.14$uP2.11@fx20.am4...

I have never suggested that placing a lens in front of a webcam
lens is the same as reversing the webcam's lens.

You can get the same effect by simply holding the lens
reversed in front of any digital camera lens.

Hello? Knock, knock, knock.


Err, what part of that has anything to do with reversing a webcam's lens?
You are not making a lot of sense, other than displaying your obvious
conclusion jumping.

This discussion started with my (incorrect) claim that it would not be easy to
reverse the lens on a (presumably inexpensive) Webcam. I was wrong.

Lens reversal was commonly used to get closeups without having to buy a macro
lens -- or even a set of plus lenses. The problem, though, is that you don't
have a wide range of focus with a reversed lens.

The discussion got out of hand.

 

[Gareth Magennis]

"William Sommerwerck" wrote in message news:l70qda$66d$1@dont-email.me...

"Gareth Magennis" wrote in message news:jVRku.36$KN6.20@fx16.am4...
"William Sommerwerck" wrote in message news:l70p2j$vg9$1@dont-email.me...
"Gareth Magennis" wrote in message news:kFRku.14$uP2.11@fx20.am4...

I have never suggested that placing a lens in front of a webcam
lens is the same as reversing the webcam's lens.

You can get the same effect by simply holding the lens
reversed in front of any digital camera lens.

Hello? Knock, knock, knock.


Err, what part of that has anything to do with reversing a webcam's lens?
You are not making a lot of sense, other than displaying your obvious
conclusion jumping.

This discussion started with my (incorrect) claim that it would not be easy
to
reverse the lens on a (presumably inexpensive) Webcam. I was wrong.

Lens reversal was commonly used to get closeups without having to buy a
macro
lens -- or even a set of plus lenses. The problem, though, is that you don't
have a wide range of focus with a reversed lens.

The discussion got out of hand.




OK, shake hands then.

 

[Gareth Magennis]

"William Sommerwerck" wrote in message news:l70qda$66d$1@dont-email.me...

"Gareth Magennis" wrote in message news:jVRku.36$KN6.20@fx16.am4...
"William Sommerwerck" wrote in message news:l70p2j$vg9$1@dont-email.me...
"Gareth Magennis" wrote in message news:kFRku.14$uP2.11@fx20.am4...

I have never suggested that placing a lens in front of a webcam
lens is the same as reversing the webcam's lens.

You can get the same effect by simply holding the lens
reversed in front of any digital camera lens.

Hello? Knock, knock, knock.


Err, what part of that has anything to do with reversing a webcam's lens?
You are not making a lot of sense, other than displaying your obvious
conclusion jumping.

This discussion started with my (incorrect) claim that it would not be easy
to
reverse the lens on a (presumably inexpensive) Webcam. I was wrong.

Lens reversal was commonly used to get closeups without having to buy a
macro
lens -- or even a set of plus lenses. The problem, though, is that you don't
have a wide range of focus with a reversed lens.

The discussion got out of hand.




OK, shake hands then.