Re: Photographing red flower and plants, problems.

2008-07-09 Thread David J Brooks
No i did not. Never thought.

Thanks.

I tried again on Monday and Tuesday. The yellow, pink and orange
flowers are fine.

For the red i tried metering off the grass, that was better, also -0.3
and -0.7 ev, that was sos so.
I tried some off camera wireless fill from the 360, so so, but 1-2
that should PS well.



Dave

On Mon, Jul 7, 2008 at 7:49 PM, Ken Waller [EMAIL PROTECTED] wrote:
 Did you check the red channel on the camera histogram?

 I've noticed similar concerns while shooting red wing blackbirds  tend to
 bias away from the highlight side to bring the reds under control.

 Kenneth Waller
 http://www.tinyurl.com/272u2f

 - Original Message -
 From: David J Brooks [EMAIL PROTECTED]

 Subject: Re: Photographing red flower and plants, problems.


 http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0125.jpg

 Here is an example of what i get from a red flower.

 The reds look way over saturated, the middle of the flower is a peach
 colour, but you can barely see that colour at  all.

 I get this alot with red tulips and sometimes red flowers on a christmas
 catus.

 Dave

 On Sat, Jul 5, 2008 at 3:46 PM, D. Glenn Arthur Jr. [EMAIL PROTECTED]
 wrote:
 Bob W [EMAIL PROTECTED] noted:
 In the days of film it was well-known that blue flowers would often
 photograph with a magenta cast. I don't remember the reason, but
 perhaps something similar holds these days on digital sensors for red
 - at the opposite end of the spectrum.

 Google anomalous reflectance -- IIRC, morning glories are the worst
 culprits; some modern fabric dyes do it too.  That was the first thing
 I thought of when I saw the subject line, but the complaint seemed to
 be more about focus than colour-shift, so I left that out of my reply.

 Then again, if the camera picks up IR and the flowers fluouresce in IR,
 that would explain muddled colours _and_ the softness ... I think?

-- Glenn


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Re: Photographing red flower and plants, problems.

2008-07-07 Thread Ken Waller
Did you check the red channel on the camera histogram?

I've noticed similar concerns while shooting red wing blackbirds  tend to 
bias away from the highlight side to bring the reds under control.

Kenneth Waller
http://www.tinyurl.com/272u2f

- Original Message - 
From: David J Brooks [EMAIL PROTECTED]

Subject: Re: Photographing red flower and plants, problems.


 http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0125.jpg

 Here is an example of what i get from a red flower.

 The reds look way over saturated, the middle of the flower is a peach
 colour, but you can barely see that colour at  all.

 I get this alot with red tulips and sometimes red flowers on a christmas 
 catus.

 Dave

 On Sat, Jul 5, 2008 at 3:46 PM, D. Glenn Arthur Jr. [EMAIL PROTECTED] 
 wrote:
 Bob W [EMAIL PROTECTED] noted:
 In the days of film it was well-known that blue flowers would often
 photograph with a magenta cast. I don't remember the reason, but
 perhaps something similar holds these days on digital sensors for red
 - at the opposite end of the spectrum.

 Google anomalous reflectance -- IIRC, morning glories are the worst
 culprits; some modern fabric dyes do it too.  That was the first thing
 I thought of when I saw the subject line, but the complaint seemed to
 be more about focus than colour-shift, so I left that out of my reply.

 Then again, if the camera picks up IR and the flowers fluouresce in IR,
 that would explain muddled colours _and_ the softness ... I think?

-- Glenn


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Re: Photographing red flower and plants, problems.

2008-07-06 Thread David J Brooks
I'll try that. The flowers will be out for a while, so i have time.

Thanks

Dave

On Sat, Jul 5, 2008 at 7:57 PM,  [EMAIL PROTECTED] wrote:
 Red is less reflective than orange or yellow, so you're probably 
 underexposing. Deep red is considerably below gray card value in refetivity. 
 Meter the light off green grass or another near neutral surface, then expose 
 at that reading.
 Paul.
  -- Original message --
 From: David J Brooks [EMAIL PROTECTED]
 Well its happened again.

 My Asian lilies are starting to flower, some yellow/whites and some
 reds are popping out now.

 Took some photos Thursday, and just had a look at them.

 I seem to have a problem photographing red flowers. The colours are
 all muddled, subject is soft and blurry. Most of my red tulip shots
 come out this way as well.

 Now my orange tiger lilies look great as do my yellow and pink roses.

 Am i doing something wrong, or is it red being a difficult colour.

 Dave

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 http://brooksinthecountry.blogspot.com/
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Re: Photographing red flower and plants, problems.

2008-07-06 Thread David J Brooks
Its funny. The preview thumbnail looks like the flower should be.

It does look like i underexposed on these, so there in may be part of
my problem. I was underexposed a bit on the yellow ones, and they look
fine.

I have a show today, but the first part of next week looks good,
weather wize, so i'll play a bit

Dave

On Sat, Jul 5, 2008 at 8:03 PM,  [EMAIL PROTECTED] wrote:
 They look pretty good on my laptop. These results could certainly be improved 
 considerably in post.
 Paul
  -- Original message --
 From: David J Brooks [EMAIL PROTECTED]
 http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0
 125.jpg

 Here is an example of what i get from a red flower.

 The reds look way over saturated, the middle of the flower is a peach
 colour, but you can barely see that colour at  all.

 I get this alot with red tulips and sometimes red flowers on a christmas 
 catus.

 Dave

 On Sat, Jul 5, 2008 at 3:46 PM, D. Glenn Arthur Jr. [EMAIL PROTECTED] 
 wrote:
  Bob W [EMAIL PROTECTED] noted:
  In the days of film it was well-known that blue flowers would often
  photograph with a magenta cast. I don't remember the reason, but
  perhaps something similar holds these days on digital sensors for red
  - at the opposite end of the spectrum.
 
  Google anomalous reflectance -- IIRC, morning glories are the worst
  culprits; some modern fabric dyes do it too.  That was the first thing
  I thought of when I saw the subject line, but the complaint seemed to
  be more about focus than colour-shift, so I left that out of my reply.
 
  Then again, if the camera picks up IR and the flowers fluouresce in IR,
  that would explain muddled colours _and_ the softness ... I think?
 
 -- Glenn
 
 
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Re: Photographing red flower and plants, problems.

2008-07-06 Thread David J Brooks
So its not just me.:-)

Ok, good to know it does happen, so now i can watch for it, experiment
and see what happens.

Dave

On Sat, Jul 5, 2008 at 8:45 PM, Gonz [EMAIL PROTECTED] wrote:
 I've always attributed it to a Bayer thing.  I got the same thing when
 I photographed a bunch of deep red roses with light painting and they
 looked awful.  Like oversaturated and muddled, like its missing some
 resolution or something.  I'll bet really blue things have the same
 issue.



 On 7/5/08, David J Brooks [EMAIL PROTECTED] wrote:
 Well its happened again.

  My Asian lilies are starting to flower, some yellow/whites and some
  reds are popping out now.

  Took some photos Thursday, and just had a look at them.

  I seem to have a problem photographing red flowers. The colours are
  all muddled, subject is soft and blurry. Most of my red tulip shots
  come out this way as well.

  Now my orange tiger lilies look great as do my yellow and pink roses.

  Am i doing something wrong, or is it red being a difficult colour.

  Dave

  --
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  www.caughtinmotion.com
  http://brooksinthecountry.blogspot.com/
  Ontario Canada


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Re: Photographing red flower and plants, problems.

2008-07-06 Thread David J Brooks
Thanks

Dave

On Sat, Jul 5, 2008 at 9:21 PM, Derby Chang [EMAIL PROTECTED] wrote:

 Yep, when a subject is mostly red or blue, resolution goes down by up to
 a quarter (unless you are using a Foveon sensor). Up to a half if the
 subject is mostly green

 D



 Gonz wrote:
 I've always attributed it to a Bayer thing.  I got the same thing when
 I photographed a bunch of deep red roses with light painting and they
 looked awful.  Like oversaturated and muddled, like its missing some
 resolution or something.  I'll bet really blue things have the same
 issue.



 On 7/5/08, David J Brooks [EMAIL PROTECTED] wrote:

 Well its happened again.

  My Asian lilies are starting to flower, some yellow/whites and some
  reds are popping out now.

  Took some photos Thursday, and just had a look at them.

  I seem to have a problem photographing red flowers. The colours are
  all muddled, subject is soft and blurry. Most of my red tulip shots
  come out this way as well.

  Now my orange tiger lilies look great as do my yellow and pink roses.

  Am i doing something wrong, or is it red being a difficult colour.

  Dave

  --
  Equine Photography
  www.caughtinmotion.com
  http://brooksinthecountry.blogspot.com/
  Ontario Canada


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 follow the directions.






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Photographing red flower and plants, problems.

2008-07-05 Thread David J Brooks
Well its happened again.

My Asian lilies are starting to flower, some yellow/whites and some
reds are popping out now.

Took some photos Thursday, and just had a look at them.

I seem to have a problem photographing red flowers. The colours are
all muddled, subject is soft and blurry. Most of my red tulip shots
come out this way as well.

Now my orange tiger lilies look great as do my yellow and pink roses.

Am i doing something wrong, or is it red being a difficult colour.

Dave

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Equine Photography
www.caughtinmotion.com
http://brooksinthecountry.blogspot.com/
Ontario Canada

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Re: Photographing red flower and plants, problems.

2008-07-05 Thread D. Glenn Arthur Jr.
David J Brooks [EMAIL PROTECTED] asked:
 I seem to have a problem photographing red flowers. The colours are
 all muddled, subject is soft and blurry. Most of my red tulip shots
 come out this way as well.

 Now my orange tiger lilies look great as do my yellow and pink roses.

 Am i doing something wrong, or is it red being a difficult colour.

This may be completely off the mark, but just as a troubleshooting
step ... try shifting the focus to halfway between normal focus
and the infrared-focus mark on the lens, and see whether that makes
any difference.  If it does, the flowers are the problem.

Are you shooting wide open, or stopped down?

-- Glenn

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Re: Photographing red flower and plants, problems.

2008-07-05 Thread jens
Funny enough, I have nticed the same thing., especielly with pink subjects
(shocking pink)
Perhaps filters maight help?

Regards
Jens
 Well its happened again.

 My Asian lilies are starting to flower, some yellow/whites and some
 reds are popping out now.

 Took some photos Thursday, and just had a look at them.

 I seem to have a problem photographing red flowers. The colours are
 all muddled, subject is soft and blurry. Most of my red tulip shots
 come out this way as well.

 Now my orange tiger lilies look great as do my yellow and pink roses.

 Am i doing something wrong, or is it red being a difficult colour.

 Dave

 --
 Equine Photography
 www.caughtinmotion.com
 http://brooksinthecountry.blogspot.com/
 Ontario Canada

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 PDML@pdml.net
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 follow the directions.




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RE: Photographing red flower and plants, problems.

2008-07-05 Thread Bob W
In the days of film it was well-known that blue flowers would often
photograph with a magenta cast. I don't remember the reason, but
perhaps something similar holds these days on digital sensors for red
- at the opposite end of the spectrum.

Bob 

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On 
 Behalf Of David J Brooks
 Sent: 05 July 2008 18:38
 To: Pentax Discuss
 Subject: Photographing red flower and plants, problems.
 
 Well its happened again.
 
 My Asian lilies are starting to flower, some yellow/whites and some
 reds are popping out now.
 
 Took some photos Thursday, and just had a look at them.
 
 I seem to have a problem photographing red flowers. The colours are
 all muddled, subject is soft and blurry. Most of my red tulip shots
 come out this way as well.
 
 Now my orange tiger lilies look great as do my yellow and pink
roses.
 
 Am i doing something wrong, or is it red being a difficult colour.
 
 Dave
 
 -- 
 Equine Photography
 www.caughtinmotion.com
 http://brooksinthecountry.blogspot.com/
 Ontario Canada
 
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 PDML@pdml.net
 http://pdml.net/mailman/listinfo/pdml_pdml.net
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 above and follow the directions.
 
 


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Re: Photographing red flower and plants, problems.

2008-07-05 Thread D. Glenn Arthur Jr.
Bob W [EMAIL PROTECTED] noted:
 In the days of film it was well-known that blue flowers would often
 photograph with a magenta cast. I don't remember the reason, but
 perhaps something similar holds these days on digital sensors for red
 - at the opposite end of the spectrum.

Google anomalous reflectance -- IIRC, morning glories are the worst
culprits; some modern fabric dyes do it too.  That was the first thing
I thought of when I saw the subject line, but the complaint seemed to
be more about focus than colour-shift, so I left that out of my reply.

Then again, if the camera picks up IR and the flowers fluouresce in IR,
that would explain muddled colours _and_ the softness ... I think?

-- Glenn


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Re: Photographing red flower and plants, problems.

2008-07-05 Thread David J Brooks
http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0125.jpg

Here is an example of what i get from a red flower.

The reds look way over saturated, the middle of the flower is a peach
colour, but you can barely see that colour at  all.

I get this alot with red tulips and sometimes red flowers on a christmas catus.

Dave

On Sat, Jul 5, 2008 at 3:46 PM, D. Glenn Arthur Jr. [EMAIL PROTECTED] wrote:
 Bob W [EMAIL PROTECTED] noted:
 In the days of film it was well-known that blue flowers would often
 photograph with a magenta cast. I don't remember the reason, but
 perhaps something similar holds these days on digital sensors for red
 - at the opposite end of the spectrum.

 Google anomalous reflectance -- IIRC, morning glories are the worst
 culprits; some modern fabric dyes do it too.  That was the first thing
 I thought of when I saw the subject line, but the complaint seemed to
 be more about focus than colour-shift, so I left that out of my reply.

 Then again, if the camera picks up IR and the flowers fluouresce in IR,
 that would explain muddled colours _and_ the softness ... I think?

-- Glenn


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Re: Photographing red flower and plants, problems.

2008-07-05 Thread D. Glenn Arthur Jr.
David J Brooks [EMAIL PROTECTED] wrote:
 http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0125.jpg

 Here is an example of what i get from a red flower.

 The reds look way over saturated, the middle of the flower is a peach
 colour, but you can barely see that colour at  all.

Hmm.  That does have that oddly oversaturated look that I
associate (correctly or incorrectly I'm not sure) with
anomalous reflectance.  But just to cross something really
easy off the list first, before assuming it's one of the
really tough phenomena to deal with ... have you tried 
setting the white balance manually?

(I don't think white balance is the problem, but when 
troubleshooting there are just some things you have to 
check, y'know?)

If the problem does turn out to be anomalous reflectance,
does anyone happen to know whether substituting artificial
light for daylight does any good?

-- Glenn, who ought to go 
   find some morning glories 
   to experiment on.


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Re: Photographing red flower and plants, problems.

2008-07-05 Thread pnstenquist
Red is less reflective than orange or yellow, so you're probably underexposing. 
Deep red is considerably below gray card value in refetivity. Meter the light 
off green grass or another near neutral surface, then expose at that reading.
Paul. 
 -- Original message --
From: David J Brooks [EMAIL PROTECTED]
 Well its happened again.
 
 My Asian lilies are starting to flower, some yellow/whites and some
 reds are popping out now.
 
 Took some photos Thursday, and just had a look at them.
 
 I seem to have a problem photographing red flowers. The colours are
 all muddled, subject is soft and blurry. Most of my red tulip shots
 come out this way as well.
 
 Now my orange tiger lilies look great as do my yellow and pink roses.
 
 Am i doing something wrong, or is it red being a difficult colour.
 
 Dave
 
 -- 
 Equine Photography
 www.caughtinmotion.com
 http://brooksinthecountry.blogspot.com/
 Ontario Canada
 
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Re: Photographing red flower and plants, problems.

2008-07-05 Thread pnstenquist
They look pretty good on my laptop. These results could certainly be improved 
considerably in post.
Paul
 -- Original message --
From: David J Brooks [EMAIL PROTECTED]
 http://smg.photobucket.com/albums/v408/divad_b/?action=viewcurrent=red-flower-0
 125.jpg
 
 Here is an example of what i get from a red flower.
 
 The reds look way over saturated, the middle of the flower is a peach
 colour, but you can barely see that colour at  all.
 
 I get this alot with red tulips and sometimes red flowers on a christmas 
 catus.
 
 Dave
 
 On Sat, Jul 5, 2008 at 3:46 PM, D. Glenn Arthur Jr. [EMAIL PROTECTED] wrote:
  Bob W [EMAIL PROTECTED] noted:
  In the days of film it was well-known that blue flowers would often
  photograph with a magenta cast. I don't remember the reason, but
  perhaps something similar holds these days on digital sensors for red
  - at the opposite end of the spectrum.
 
  Google anomalous reflectance -- IIRC, morning glories are the worst
  culprits; some modern fabric dyes do it too.  That was the first thing
  I thought of when I saw the subject line, but the complaint seemed to
  be more about focus than colour-shift, so I left that out of my reply.
 
  Then again, if the camera picks up IR and the flowers fluouresce in IR,
  that would explain muddled colours _and_ the softness ... I think?
 
 -- Glenn
 
 
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 http://brooksinthecountry.blogspot.com/
 Ontario Canada
 
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Re: Photographing red flower and plants, problems.

2008-07-05 Thread Gonz
I've always attributed it to a Bayer thing.  I got the same thing when
I photographed a bunch of deep red roses with light painting and they
looked awful.  Like oversaturated and muddled, like its missing some
resolution or something.  I'll bet really blue things have the same
issue.



On 7/5/08, David J Brooks [EMAIL PROTECTED] wrote:
 Well its happened again.

  My Asian lilies are starting to flower, some yellow/whites and some
  reds are popping out now.

  Took some photos Thursday, and just had a look at them.

  I seem to have a problem photographing red flowers. The colours are
  all muddled, subject is soft and blurry. Most of my red tulip shots
  come out this way as well.

  Now my orange tiger lilies look great as do my yellow and pink roses.

  Am i doing something wrong, or is it red being a difficult colour.

  Dave

  --
  Equine Photography
  www.caughtinmotion.com
  http://brooksinthecountry.blogspot.com/
  Ontario Canada


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Re: Photographing red flower and plants, problems.

2008-07-05 Thread Derby Chang

Yep, when a subject is mostly red or blue, resolution goes down by up to 
a quarter (unless you are using a Foveon sensor). Up to a half if the 
subject is mostly green

D



Gonz wrote:
 I've always attributed it to a Bayer thing.  I got the same thing when
 I photographed a bunch of deep red roses with light painting and they
 looked awful.  Like oversaturated and muddled, like its missing some
 resolution or something.  I'll bet really blue things have the same
 issue.



 On 7/5/08, David J Brooks [EMAIL PROTECTED] wrote:
   
 Well its happened again.

  My Asian lilies are starting to flower, some yellow/whites and some
  reds are popping out now.

  Took some photos Thursday, and just had a look at them.

  I seem to have a problem photographing red flowers. The colours are
  all muddled, subject is soft and blurry. Most of my red tulip shots
  come out this way as well.

  Now my orange tiger lilies look great as do my yellow and pink roses.

  Am i doing something wrong, or is it red being a difficult colour.

  Dave

  --
  Equine Photography
  www.caughtinmotion.com
  http://brooksinthecountry.blogspot.com/
  Ontario Canada


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