newbie's IR V1 floppy tutorial ; )

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

• Michiel de Brieder -

Andy Williams said:

monky wrote:

Click to expand...

Andy Williams said:

Andy Williams said:

monky wrote:

Click to expand...

--
-- andy

'be a real student and take chances. live on the edge. teeter on
the brink...skip on the tightrope. and if you fall, enjoy the wind
on your smiling face.' -- paul lester

Click to expand...

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

airbag21 said:

all my pictures came out green with the white not bright at all.
Any suggestions?

Click to expand...

Aurobindo Saha said:

I found your tutorial very interesting. Do you still have the pics
that you used in this tutorial? In case you have can you please
report them again?

Thanks
Aurobindo

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

Click to expand...

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

• Michiel de Brieder -

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:



i found that my floppy blocked practically anything below 650nm,
and attenuated significantly anything below about 700nm in effect
it is very close to a hoya R72 (720nm)

=====================================

now, onto getting a floppy filter fitted for a V1. i seen posts
detailing the process for a 7x7 or 828... but none for a V1. i
quickly got sick of holding the floppy in place, so heres what i
cut out:



this allowed me to wedge it under the black plastic ring at the
front of the lens, like so:



note that the camera is off in the above picture. i found that you
can actually get the filter in place, and then freely turn the
camera off and on, and the filter will not interfere with the
lens sheild that opens and closes. the tab on the filter was left
in place for easy removal. to get the filter in place, i found it
best to slide in the far side (without the tab) first, then slide
it back towards the tabbed end to get the third corner in place.

NOTE i re-made another filter, with the tab in the middle of one
of the sides, giving me 4 distinct corners to hold the filter in
place. unfortunately i dind't take a pic though.... just
mentioned it to try

====================================

now onto the important part: how does it work? well, in short,
very well.

my method is as follows: nightshot mode, ISO 100, point and click
: ). ISO 100 (or 200) is important because left to its own
discretion, the camera will pick any value it sees fit, right up to
3200. (yes, 3200 - sony cams do this for nightshot only).

once i got it into photoshop i simply adjusted levels manually
(auto levels will work also: ctrl+shift+L), desaturated the image,
and heres what i got:



the image is nothing spectacular, it needs to be processed more (i
do not have anything even resembling a workflow for this yet...
there are plenty of posts laying around for that though ; ). keep
in mind also that the sky is VERY overcast and on the brink of rain
at the moment. the subject also leaves a bit to be desired. all
that said, i think the floppy did an excellent job as a filter.

=====================================

personally i will not be spending any money on filters any time
soon. an i hope i may have saved someone else some money too by
reading this. they say necessity is the mother of all invention -
i say its lack of cash!

thanks for reading this far
i hope you found this informative or at least helpful
monky

--
a camera needs only an instant to capture things which our mind may
need years to grasp

AIM: monky9000 IM's welcome ; )

Click to expand...

squirrel777 said:

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:

Click to expand...

Click to expand...

dinofm said:

Dino

dinofm said:

monky said:

i looked around here a while and found a few IR posts dealing with
floppies, but none really combining all the information that i
wanted. so heres what i have found out in the past 24 hours

======================================

first of all, i found that a floppy acts as both an ND filter and
an IR filter combined. i noticed some posts that claimed a floppy
does not block any visible light, that it merely acts as an ND
filter. i beg to differ here.

the ND "property" of the floppy is about 7 stops, give or take a
bit. some shots i compared were 6, some were 7, and some were 8.
i compared them by setting the camera to aperature priority and
comparing the shutter speeds it picked.

the IR propery was slighlty more difficult to get.... i took a
few pictures, used the eyedropper in PS CS to get the RGB values at
different points, and compared them to a graph like this:

Click to expand...

Click to expand...

Click to expand...